TW310313B - Apparatus provided with a fluidized bed crystallizer for treating wastewater - Google Patents

Abstract

An apparatus provided with a fluidized bed crystallizer for treating wastewater comprises a reactor filled with carriers and potable tap water, a reagent inlet connected to the reactor for introducing reagent into the reactor, and a recirculation connected with the reactor. The wastewater can be introduced into the reactor through the recirculation, a first wastewater pipe provided on the bottom of the reactor, or a second wastewater pipe extending from the top to the bottom of the reactor. Thewastewater then flows upward to fluidize the carriers. The reagentcan react with pollutants contained in the wastewater to form crystals on the fluidized carriers. Finally, the treated wastewater is discharged from the top of the reactor.

Description

Printed by the Central Department of Economics, Ministry of Economic Affairs, Consumer Cooperative. 〇 丄 β A 7 ________B7 V. Description of the invention (i) ~~-e The present invention is related to the Wei Weihua bed knot riding secret mechanism, especially = about-the sludge production ship, the operation and installation of the wire is cheap _ chemical bed Crystallization wastewater treatment device. When industrially treating inorganic water or wastewater, precipitation method is usually used to remove pollutants in water, and the traditional precipitation method treatment process can be roughly divided into sections: 1. Coagulation (Coagulation): It is added to the reaction tank. The coagulant is mixed quickly, which can destroy the stability of colloids and fine suspended solids, and promote the aggregation of destabilizing particles. 2. Gelation (Flocculation): Add polymer coagulant to the reaction tank and mix it slowly, which can promote the weight and volume of the aggregated particles to continue to increase and form a fast-settling gel plume. 3. Dewatering: The sludge generated by the softening of ordinary lime is first processed in a gravity concentration tank to produce concentrated sludge with a solid content of 3%, and then dewatered by a dehydration device (such as a vacuum filter, centrifuge or filter press, etc.) Under solid load operation, 65% solids sludge cake can be obtained. Although the traditional sedimentation method is widely used, it will produce a lot of harmful or general sludge, which has a great impact on the environment. In view of this, the present invention provides a fluidized bed crystallization waste water treatment device, which adds a support in a cylindrical crystallization tower, the support is fluidized by water flow, and the metal salt has a low solubility and a stable crystal skeleton The characteristics of the pollutants make the pollutants crystallize on the support in the fluidized bed, thereby effectively removing anions or metal ions in the wastewater, thereby reducing the production of sludge or the reuse of crystals, and the cost of equipment is also low. The functions of the present invention are explained in conjunction with the drawings. 3 丨 _: ------ f · Installation ------ order -----_ first line (please first «read the notes on the back and then fill out this page) This paper scale uses the Chinese national standard falcon (CNS) A4 specification (2 丨 0X297 Gonglian) 83. 3.10,000, 丨, .., 丨, .. Printed by the Central Bureau of Economics, Ministry of Economic Affairs, Jungong Consumer Cooperative

A

B. Description of the invention (2) Brief description of the drawings: Figure 1 is a schematic diagram of the process of using the fluidized bed crystallization wastewater treatment device of the present invention to treat wide water; (4) reaction tank, (11) fast mixing tank, ( 12) Slow mixing tank, (13) sedimentation tank, (14) uniform tank, (15) pH value adjustment tank, ⑺ water outlet, (21) stone head, (22) load body, (3) first waste water inlet , (31) second wastewater inlet, (3 ,,) manifold (third wastewater inlet), (1) return water inlet, (94) channel, (92) second auxiliary tank, ⑹ return water outlet, (2 ) Pharmaceutical inlet, ⑺alkali port, (93) overflow port, (91) first auxiliary tank, (88) second wastewater pipe c Figure 2 is the reaction tank of the fluidized bed crystallization wastewater treatment device according to the present invention Schematic diagram: (5) Crystal discharge outlet, ⑻ support inlet, (10) tap water inlet, (1) return water inlet, (2) medicament inlet, (2 ') alkali addition inlet, (3) first waste water inlet, ( 3 ') The second waste water inlet, (4) reaction tank, (6) return water outlet, (7) water outlet, (91) first auxiliary tank, (92) second auxiliary tank, (93) overflow port. Figure 3 is a schematic diagram of the reaction tank and the crystal discharge pipeline of the fluidized bed crystallization wastewater treatment device according to the present invention; (31), (32), (33), (34) valves, (10) tap water inlet, ⑷ Reaction tank, (5) crystal gully outlet, (35) storage barrel, (36) pipeline, (1) return water inlet, (2) medicament inlet '(21) alkali addition inlet, (3) first waste water inlet, (3,) Second waste water inlet, (3 ") Manifold (third waste water inlet), (91) No.-auxiliary tank, (92) second auxiliary tank, (93) overflow port. No. 4 is the schematic diagram of the reaction tank, the return water circuit and the supplementary support piping of the fluidized bed crystallization wastewater treatment equipment according to the present invention; (50) storage barrel, (41), (44), (45) valve , ⑹ return water outlet, (72), (73), (73), (74) pipeline, (1) return water inlet, (4) reaction tank, (51), (52) centrifugal pump, (42 ), (43), (46), (47), (48), (61), (62), (63), (64), 4 papers, and 80 new counties (rCNS) A4 * W « · (21GX297 public bump) 8 3.! 〇, 〇〇〇 -------- Factory installed I- (please read the precautions on the back and then fill the nest)-order

5. Description of the invention (3) (65), (66), (67), (68) valves, (53), (54) flowmeters, (151) syringes, (8) support inlet, (91) One secondary tank, (92) second secondary tank, (93) overflow port, (94) channel. Figure 5 is a schematic diagram of the return pipe at the bottom of the reaction tank of the fluidized bed crystallization wastewater treatment device according to the present invention; (4) reaction tank, (80) return pipe, (1) return water inlet, (81) manifold, ( 79) Valve, (2) drug inlet, (2 ·) alkali addition port. Figure 6 is a schematic diagram of a first waste water pipe for treating low-flow high-concentration waste water in a reaction tank of a fluidized bed crystallization waste water treatment device according to the present invention; (4) reaction tank, (82) first waste water pipe, (3) Wastewater inlet, (85) holes, (83), (84) splines, (86) protective cover, (A) inlet cross-sectional area. Figure 7 is a schematic diagram of a second waste water pipe for processing high-flow low-concentration waste water in the reaction tank of the fluidized bed crystallization waste water treatment device according to the present invention; (4) reaction tank, (88) second waste water pipe, (881) Long slot. Printed by the Ministry of Economic Affairs, Central Timber, Pui Pongong Consumer Cooperative. Figure 1 shows the flow of wastewater treatment using the fluidized bed crystallization wastewater treatment device of the present invention. The figure includes a reaction tank (4), a fast mixing tank (11), slow Mixing tank (12), sedimentation tank (13), uniform tank (14) and pH value adjusting tank (15). The whole process is to first introduce waste water into the reaction tank (4) (the tank body is ® column) as the main treatment, to remove most of the pollutants (anions or metal ions) in the water, and then lead out from the water outlet (7), and then through Conventional sedimentation treatment (that is, wastewater enters the fast mixing tank (11) from the outlet (7) and then flows into the slow mixing tank (12). In the fast mixing tank (Π), there is a coagulant that can destroy the colloid and fine suspension Stabilization of solids and promote the aggregation of destabilizing particles. Adding a polymer coagulant to the slow mixing tank (12) can cause the weight and volume of the coagulated particles to continue to increase, forming a fast-settling gum plume, and then entering the sedimentation tank (13) Sludge sedimentation occurs, and the wastewater flowing out of the sedimentation tank is introduced into the uniform tank (14), 5 83. 3.10,000 (please read the precautions on the back before filling this page). (CNS) A4 specification (2 丨 0X297mm) B7 Printed by the Consumer Labor Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. 5. Description of invention (4) pH value adjustment tank (15) for acid and alkali value adjustment). Because most of the pollutants have been removed in the reaction tank (4), the sludge production has been greatly reduced when the wastewater is treated by the conventional precipitation method. If the above wastewater from Shendian Pond (13) does not have a good treatment effect, it needs to be returned to the reaction tank (4) and treated again (as shown by the dotted line). The following describes the situation in the reaction tank (4): before the treatment of wastewater, the reaction tank (4) is filled with stones (21), and is filled with tap water and dandelion (22). The stones (21) are from large to small. Stacking (called gradation). There are three possible paths for the wastewater to enter the reaction tank (4), which depends on the wastewater flow and concentration. Assuming that I is the starting point, when the wastewater is of low flow rate and high concentration, it enters the reaction tank (4) from the first wastewater inlet (3) 'When the wastewater is of high flow rate and low concentration, it enters the second wastewater inlet (3') The reaction tank (4), when the wastewater is at a higher flow rate and lower concentration, it enters the reaction tank (4) through the manifold (3 ”) (the third wastewater inlet) and then from the return water inlet (1). It can be controlled by a valve (not shown), and the corresponding operating conditions inside the reaction tank (4) are not the same, and are described as follows: 1. The first waste water inlet (3) enters the reaction tank (4): as before As mentioned above, before the treatment of wastewater, the reaction tank (4) is filled with stones (21) and filled with tap water and supports (22), and the reflux pump is turned on so that the water in the reaction tank (4) flows from bottom to top. The channel (94) enters the second sub-tank (92) and flows out from the return water outlet (6), and then flows back from the return water inlet (1) (the purpose of introducing the return water is to make the support body (22) reach a certain upstream speed and then Fluidization), then turn on the chemical pump and waste water pump, so that the chemical agent, lye and waste water are introduced from the chemical agent inlet (2), alkali addition port (2) and the first wastewater inlet p) Enter the reaction tank (4) and mix thoroughly. As mentioned above, the water system in the reaction tank (4) flows upward to make the support (22) fluidize, and the metal salt has the characteristics of low solubility and steady-state crystals , So that the pollutants can crystallize on the support (22) in the fluidized bed 6 (please read the $ item on the back and then fill out this page) • Install. ) A4 secret (21GX297 Gong1:} 83. 3.10,000 Printed by the Central Sample Bureau of the Ministry of Economic Affairs, the Consumer Labor Cooperative 5 ^ 0313 ------- V. Description of the invention ('In order to remove anions or metal ions in wastewater. The treated wastewater is divided into two parts, one part passes through the channel (94) through the second sub-tank (92), the return water outlet (6), the flow-free water inlet ⑴ flows back into the reaction tank ⑷ for re-purification, and the other part It flows from the overflow port (93) through the first auxiliary tank (91) and the water outlet (7). Please refer to Figure 6, because the amount of waste water is small, so the first-waste water pipe (82) in the reaction tank (4) ) ((3) is the first waste water inlet) with a plurality of holes (85), where the sum of the cross-sectional area of all holes (85) f n a, n is the number of holes) must be small The inlet cross-sectional area A of the first waste water pipe (82) enables the waste water to be evenly sprayed from the hole (85). PVC rods (83) and (84) are provided on both sides of the hole (85) at a high speed. The waste pipe (82) is also covered with a layer of fine plastic mesh (not shown). Due to the barrier of the pvC rods (83) and (84), a certain distance is left between the fine plastic mesh and the hole (85) to reduce Scaling is caused by the local supersaturation of the solution (wastewater), and the fine plastic mesh can also prevent the sand (loading body) from clogging. The other end of the first waste water pipe (82) is inserted into the protective cover (86) and fixed, and it is directly It can be drawn out. 2. Enter the reaction tank (4) from the second waste water inlet (3 '): the second waste water pipe (88) enters from the top of the center of the reaction tank (4) and extends down to the first waste water pipe (82) ) (Picture 6) The upper part of the bed is above the stone bed. After the waste water enters the reaction tank (4) and flows out from the second waste water pipe (gg), it is fully mixed with the medicament while flowing from the bottom to the top. As for other operation methods, it is the same as the situation in item (1). (22) The upper crystallization, the treated wastewater is divided into two parts, one part is drawn out from the outlet (6) and then flows back from the inlet (1), used as reflux water, and the other part flows out from the water outlet (7) for further treatment After emissions. 7

This paper has a special standard for the national tally (CNS) Α4 specification (210X297 mm) 83. 3.10,000 (please read the note on the back and fill in this page). Du Yinzhuo 〇i.C3i3 A'7 _____ B? V. Description of invention (ό) — 7th graph reaction _ second waste money indication κ. ⑽The amount of water entering from the second waste water inlet (3,) is large, so there is no need to open holes along the second waste water pipe (88), waste water can directly flow out from the bottom end of the second waste water pipe (88), and the second waste water pipe ( 88) No fine mesh is coated on the top, and a plurality of long grooves (881) are opened in the axial direction at the bottom periphery of the bottom. A small number of sand (Danchi) invading from the bottom end of the second waste water pipe (88) can be viewed from the long horizontal (881 ) The discharge flows back to the reaction tank (4). Since the fine mesh is not covered and it is not inserted into a fixing device such as a protective cover, the second waste water pipe (88) is obviously easier to repair and disassemble than the first waste water pipe (82) (Figure 6). If the diameter of the reaction tank (4) is slightly larger, a number of manifolds should extend from the end of the second waste water pipe (88), so that the waste water can be evenly dispersed in the reaction tank (4). The cross-section is evenly distributed, so the distance between the manifold and the manifold, and the distance between the manifold and the wall of the reaction tank must be as equal as possible. The number of manifolds depends on the diameter of the reaction tank. If the diameter is less than 50 cm, no manifold is provided. Three manifolds with a diameter of 50 to 150 cm and five manifolds with a diameter of 200 to 250 cm are provided. 3_ After entering the reaction tank (4) via the manifold (3 ”) (the third waste water inlet): from the return inlet (1): In this example, the amount of water is larger, and the upstream flow rate generated when the waste water enters the reaction tank (4) has It is enough to fluidize the snakehead, so there is no need to start the backflow pump (wastewater no longer flows out from the backwater outlet (6), the backflow ratio is zero, where backflow ratio = backwater volume / wastewater volume), and because the concentration of waste water is very low, There is no need for reflux for the second treatment. The wastewater will flow out of the water outlet (7) after the action of the carrier fluid bed. 0 Please refer to Figure 5, the return pipe (80) (1 is in the reaction tank (4)) The number of reflux water inlets is related to the diameter of the reaction tank. Usually, a reflux stream is set every 40 ~ 50cm ---------- installation ------ order ----- Ι- line (Please read the precautions on the back before filling this page) This paper size is applicable to the national standard (CNS) Α4 specification (210X297 public) 83. 3. 10,000 A 7 B7 3K313 V. Description of invention (7) tube That is, if the diameter of the reaction tank is 〖20cm, two (120cm / 50cm = 2.4) or three (12〇cm / 4〇cm = 3) return pipes (usually two to five) are required. Each one time The flow pipe (80) has a plurality of manifolds, and the manifolds of adjacent return pipes are staggered and can be connected into a regular triangle. And the manifold (81) extends into the return pipe (80) in the radial direction, making the flow passage narrow The flow velocity is accelerated, which can reduce the solid blockage. Due to the gradation at the bottom of the reaction tank, the flow skull can be close to the plug-flow (Plug-Flow), the height of the short circuit area (Short Circuiting) is reduced, and the height of the crystallization tower is allowed to be low. It can save cost and is easy to operate. If the support is blocked by the return pipe (80) due to improper operation, the valve (79) can be opened to discharge the blocked support by a centrifugal pump. The scale can also be removed with a tool. The symbol (2) represents the agent inlet, the symbol (2 ') represents the alkali addition port, the agent inlet (2) is connected to the return water inlet (1), and its purpose is to reduce the concentration of the agent, and It is to reduce the local supersaturation during the reaction, so that the precipitation ratio of the low-solubility components in the drug decreases, and the crystallization ratio during the reaction increases. The test solution (such as TSIaOH, etc.) is added to the reaction tank (4) from the alkali addition port (2 '), except It is used to adjust the pH value. The effect of increasing the proportion of crystals and decreasing the proportion of precipitation. The reason why the alkali addition port (21) is connected to the reflux water inlet (1) is also because the dilution of the reflux water and the upstream (in the reaction tank) make the lye and wastewater fully mixed. Figure 2 shows a more detailed structure of the reaction tank, in which the reaction tank (4) is further connected to the crystal discharge port (5), the support inlet ⑻, and the tap water inlet (10). When the reaction surface in the reaction tank (4) After crystallization to a certain degree, it needs to be replaced. There are two types of crystallization: static crystallization and dynamic crystallization. Static crystallization is suitable for wastewater batch treatment. At this time, all other inlet pipes include wastewater, chemicals, acids and alkalis. , Reflux water, etc. should stop flowing. As shown in Figure 3, the valves (31) and 9 at the time of crystal crystallization (Jing first read the notes on the back and then fill out this 筲) The Ministry of Economic Affairs Central Oak Quasi Bureau of Labor Consultation Cooperative Yinyin

This paper scale is applicable to the National Standards (CNS) A4 specifications (210X297 g **) 83. 3. 10,000 V. Description of inventions (8) A? B7 Printed by the Consumer Consumer Cooperative of the Central Prototype Bureau of the Ministry of Economic Affairs (32), ( 34) Open, the valve (33) is closed, tap water flows in from the left arrow, enters the reaction tank (4) through the valve (31), tap water inlet (10), and flows down with crystals from the crystal outlet (5) , Valves (32), (34) enter the storage barrel (35). After the crystal exits the reaction tank ⑷, close the valve (31) and open the valve (33). Since the water pressure of the tap water is greater than the bottom pressure of the reaction tank ⑷, the water flows from the valve (33) through the valves (32) and (34) respectively Flowing into the reaction tank (4) and storage barrel (35), the residual crystals in the tubes between the valves (32), (33), and (34) can be washed away to avoid the valves (32), (33 ) And (34) Valve parts are damaged. After flushing, first close the valve (34) (at this time tap water can still flow into the reaction tank (4)), then close the valve (32), tap water source in sequence, and finally close the valves (33) and (34). In the above crystallization process, the wastewater flowing from the reaction tank (4) into the storage barrel (35) can be introduced into the wastewater tank (not shown) through the pipeline (36), mixed with the wastewater to be treated and re-entered into the reaction tank from point I (4). As for dynamic crystallization, it is suitable for continuous wastewater treatment. The tap water is introduced from the top of the reaction tank (4) to keep the liquid level in the tank unchanged. At this time, the support body is still fluidized. The bottom is discharged, and the action of treating wastewater does not need to be interrupted (it can be performed simultaneously). After the crystals in the reaction tank (4) are discharged, it is necessary to replenish the support. 1. While replenishing the body, the machine does not need to stop. Please read Figure 4, where the symbol (50) represents the storage bucket, which is placed as a supplementary load body, and the following two cases are described separately for normal operation and supplementary load body. During normal operation, the valves (41), (44), (45) are closed, and the return water flows out from the outlet (6), through the pipeline (71), area A, area B, pipeline (74), return water inlet (1) and Flow back into the reaction tank ⑷. In area A, there are two possible paths for the return water: one is through the centrifugal pump (51) Λ pipeline (73), the valve 10 This paper standard is applicable to the national standard (CNS) A4 specification (210X297 public t) 83 . 3.10,000 Please read the note on the back%. Binding A 7 A 7 Central Ministry of Economic Affairs, Ministry of Economic Affairs, Beigong Consumer Cooperative Du Printing Package Fifth, the invention description (9) (48) flows to area B, and the other is through the valve (46), centrifugal pump (52), pipeline (73), valve (47) flow to area B, during normal operation, the return water only takes one of the paths, so the valve (46), (47) opens 、 Close and valve (48) are just opposite (valve (48) is open, then valve (46), (4 is closed, otherwise valve (48) is closed, then valve (may), (47) is open), and only use them One pump, the other is for backup. The opening size of Que (61) and (62) is inversely proportional to the level of the operation return flow, which can provide the optimal reaction upstream speed required for adjusting the reaction tank ⑷. The return water path in Zone B is also There are two: one is through the valves (63) and (64), the valves (43) and (42), the flow meters (53) and (54), the valves (67) and (68) and then through the pipeline (74) 1. The reflux water inlet (1) flows back to the reaction tank. Valves (63) and (64), valves (65) and (66), pipeline (74), return water inlet (1) flow back to the reaction tank, which are the switches and valves (65) of valves (43) and (67) On the contrary, the switching of valves (42) and (68) is opposite to that of valve (66). However, the return water usually takes the second path mentioned above, and the first path is mostly used when measuring the flow rate. Now suppose that the opened valve For (48), (63), (64), (65), (66) and centrifugal pump (51), the closed valves are (46), (47), (43), (67), ( 42), (68) and centrifugal pump (52). The return water flows out from the outlet (6), through the pipeline (71), centrifugal pump (51), pipeline (73), valve (48), (63) And (64), (65) and (66), pipeline (74), return water inlet (1) and flow back into the reaction tank (4). To replenish the support, first open the valve (41), then A part of the return water will flow into the storage barrel (5〇) through the pipeline (72) and the valve (41) to wet the support, and then close the valve (41). Then open the valves (44), (45), (46) ), (47) and centrifugal pump (52), close the valve (48), the return water is two sub-streams, one of which is changed from the pipeline (71) through the Que (46), the centrifugal pump (52), the pipeline (73 ' , (47), (63) and (64), (65) and (66), pipeline (74), return water inlet (1) and flow back into the reaction tank injector (4), the second is from the pipeline ( 71) 11 pieces of paper by centrifugal pump »: The standard is suitable for China National Standard (CNS & A4 specifications (210X297 g *)) 83, 3. 10,000 ---------- installed-(please read the back first (Notes to fill out this page)

* tT line A. Printed by Beigong Consumer Cooperative of Central Bureau of Standards, Ministry of Economic Affairs V. Invention Instructions (10) — (51), piping (73), (72), valve (44), syringe (151) flow back The reaction tank (4) at the same time produces a siphon effect, and the support body is sucked out of the storage barrel (50) and the dragon-shaped support inlet (8) is brought into the reaction tank (4). It can be seen from the above description that the hybrid bed crystallization wastewater treatment device according to the present invention will not be interrupted by crystallization or replenishment when treating wastewater, and can be processed 24 hours in a row, so for the same amount of pollution The tank body to be used will be smaller, which can reduce the cost. The application fields of the fluidized bed crystallization wastewater treatment device according to the present invention are quite extensive, including: 1. Fluorine-containing wastewater treatment and recovery, such as the semiconductor industry, video tube industry, wire and cable industry, glass industry, steel industry 'fluorocarbon compound manufacturing Industry and aluminum printing industry. 2. Removal and recovery of heavy metal ions in water, such as electroplating industry, printed circuit board industry, electronics industry, steel industry and surface treatment industry. 3. Hard water softening, such as industrial water and drinking water. 4. Denitrification and dephosphorization of wastewater, such as tertiary treatment of domestic sewage and organic industrial wastewater, fertilizer manufacturing, etc. The following examples are described as follows: 1. Fluorine-containing wastewater treatment and recovery Table 1 and Table 2 are the fluorine-containing wastewater of the semiconductor industry and Table 3 is the wastewater-containing wastewater of the image tube industry. Different chemicals are added to the fluidized bed of the present invention. A comparison table of the test conditions and results of the crystallization method and the traditional coagulation Shendian method treatment process. The results show that these two treatment methods can effectively remove fluoride ion pollutants in wastewater, but the coagulation precipitation method will produce a large amount of sludge (water-containing Rate 6〇 ~ 8〇 ./ ()), and this issue 12 (please read the precautions on the back before filling in this page) 丨 installation. The thick standard of the binding paper is applicable to the Chinese national standard (mm 83. 3.10,000) Du 7 printed by the Ministry of Economic Affairs, Central Bureau of Industry and Fisheries, A 7 B? V. Description of the invention (11) 90% high-purity calcium fluoride crystals (water content of about 10%) produced by the Ming fluidized bed crystallization method, If it cannot be reused as waste disposal, the sludge can still be reduced by more than 60%, and if there is an appropriate pipeline to replace the fluorite raw material, it can be recycled and reused as a steel plant flux or cement plant filler or other industrial related uses. 2. Water Heavy metal ion removal and recovery Table 4 The chain wastewater generated in the plating tank of the electroplating plant is compared with the test conditions and results of the treatment procedures of the fluidized bed crystallization method and the coagulation precipitation method. The results show that both methods can effectively remove nickel-containing wastewater, but the mixing The amount of sludge produced by the coagulation precipitation method is large and the impurities are too large to be recycled. The 95% high-purity nickel carbonate crystal produced by the fluidized bed crystallization method can be dissolved in acid to form nickel sulfate or vaporized nickel solution for electroplating Table 5 is a comparison table of test conditions and results of treatment procedures of copper-bearing wastewater produced by Shengnong Printed Circuit Board using fluidized bed crystallization method and coagulation sedimentation method. The results show that both methods can be used. Effectively remove copper ions in wastewater, but the large amount of sludge produced by the coagulation Shendian method and many impurities are not suitable for recycling. The 91% high purity copper carbonate crystals produced by the fluidized bed crystallization method can be added with sulfuric acid and the cooling crystallization method It is made into solid copper sulfate, which is recycled and used as animal husbandry additives, insecticides, feed, etc. 3. Hard water softening Table 6 and Table 7 are the addition of different agents to the fluidized bed crystallization method and coagulation The method compares the treatment of cooling water tower supplementation (raw water) and cooling water tower circulation to improve the concentration ratio, reduce the cooling water tower make-up water volume and discharge water volume or sludge reduction, etc. The test results show that the fluidized bed crystallization method for Ca-H Removal is superior to the coagulation precipitation method and the concentration ratio is increased from 5 to 7_4, and the water saving rate is 13 ---------- Install-(please read the precautions on the back before filling this page). The scale is printed with the Chinese National Standard (CNS) A4 (2 丨 0> < 297 Gonghua 83. 3.10,000 V. Description of Invention (I2) A? B7 Printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 7 · 5% == Γ or more, in addition, it can be recycled and reused as the raw material of cement produced by the chemical bed crystallization method or 4. Denitrification and dephosphorization of wastewater. Pharmaceutical conversion or fertilizer or nutrition. All have problems with nitrogen, injection and dyeing. Phosphorus ^ Lai Qianzou_Wei, this fine hybrid bed crystallization technology and Zhan Ning Shen Dian technology, mainly to assess the feasibility. (1) Removal of scaly acid in water. Wastewater only contains phosphorus to add about or magnesium or iron to form a salt compound. If reading the county and economical riding mud is more considered, the scaly wastewater is selected to add # 5 to form an acid feed. The treatment method is better, and the results are shown in Table 8. The influent water concentration is 3 () 6mgP〇437L. Under the conditions of pH 10, Ca / P〇4 3mol / mol, the fluidized bed crystallization method is used. The flowing water is 1.1 mg P〇43 / L, the crystals grow from the original support with a grain size of 35mm to 175mm, and the water content travels. ， Equivalent to 1.82kgCryStal / kgP〇43 · Compared with coagulation Shendian method produced sludge moisture content of 70%, equivalent to 74kg cake / kgP〇43-, sludge reduction (74- 丨 82)-: -74X100 〇 / 〇 = 75% ° (2) When nitrogen and phosphorus are removed from the water, nitrogen and phosphorus ions are contained in the waste water. When magnesium is added or only nitrogen is added, magnesium and calcium are added to form magnesium phosphate compounds. The comparison results of the fluidized bed crystallization method and the coagulation Shendian method are shown in Table 9. The concentration of the inflow water emulsion is 100 mg NH3-N / L, the concentration of phosphorus is 679 mg P〇43l, at port 11 10, fixed N: P: M : g Morbi ratio 1, fluidized bed crystallization method 14 This paper scale is applicable to China National Standard (CNS) A4 * i grid (210X297; t > 83. 3. 10,000 (please read the notes on the back first Please fill out this page again.) • Install. Line A? B7 ΙύΧΟ V. Description of the invention (13) The outflow water is 21mgNH3-N / L and 23mgP〇437L, the outflow water by coagulation precipitation method is 26mgNH3-N / L and SSmgPOpTL, crystal It is suspected that the original grain size is 0.35mm to 1.75mm, and the water content is 10%, which is equivalent to 19.71kg crystal / kg NH3-N and the coagulation Shendian method produces 70% moisture content of the sludge, which is equivalent to 7L3 kgcake / kgNH3-N, sludge reduction (71 · 3-19 · 71) + 71 · 3Χ100ο / 〇 = 72ο / 〇. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention Anyone who is familiar with this skill can make some changes and retouching without departing from the spirit and scope of the present invention. Therefore, the protection group of the present invention shall be deemed as defined by the scope of the attached patent application. (Please read the note f on the back first, and then fill in this treasure) l · For the installation · Binding work of the Central Bureau of Economics of the Ministry of Economy ¾ ♦ Printed by the cooperative 5 1 * This paper XJt is applicable to the Chinese National Standard (CNS) A Taoshen (210x297 male gall) 83. 3.10,000 A? B? 3 'said 3 * —-" ~ · ......... V. Description of invention (Η) Table 1 is added using different methods CaCI2 agent, treatment effect of fluorine-containing wastewater in semi-conductor industry TT test 1T test experimental conditions capital inspection cod hired water Ca / F Γ concentration Qiang Yang order "1 water pollution Λ F concentration Gul ratio concentration rate kg crymri kgcai) c «Elimination methods Mtt (mg / L) (mg / L) (moi / mol) (mg / t) img / L) (mm) m iiiF ItgF (%) 503 1,081 09 S.8 U 0 56 10 2Λ2 1 . 65 涑 II Huakang 2 645 U〇 $ l 0.73 10.0 iS 1.0 10 2.30 — 66 Field A 3 551 1,081 0.86 6.0 18 t.5 10 2,29-67 I 551 1,081 10 9.0 60 5.13 One-Passing Precipitation 2 551 1.081 1.0 9.0-70 — 6.84-Method 3 551 1,081 to 9.0 80-10.26 — 1 Please first read "Notes on the back and then fill out this page) 丨 Install. ≪ Note > Original load« Particle size ^ = 0.23ιηιη, crystal After the calcium fluoride with cockroach particles also = 0.56 ~ 1.5mm. Table 2 Comparison of the effects of adding Ca (OH) 2 and CaCl2 combined liquids using different methods to treat fluorine-containing wastewater in the semiconductor industry Ca (OH), Ca / F irrigated zebra MA maple contains falcon kfciyMal F " concentration c «a · Falcon Λ Fe · Yi degree (mg / L > Ff concentration 澇 Setting degree <» n ^ L) grain "Sentence (mm) k ^ adce extermination (%) method 鹩 It (mg ^ L) concentration CntR ^ U * amount ratio (mol / mol) (·, > kgF wash tt 1 2,000 8,000 2: 7,2 1 17 5 420 M00 Fluidized bed 2 5,000 10,000 2: 7.2 0.84 10 1,150 3-300 Seal A 3 4,000 10,000 5: 2 0.70 7 1,520 3,320 i.3 10 7.19 ~ 60 Method 4 20,000 15,200 5: 2 1.21 3 2,750 5.620 Conventional 1 2,570 70,000 100: 32 1.2 10--60-5.7-Precipitation method < Stove > U ttFi_Concentration table is used to resolve the F · sub-concentration after precipitation of Qishui Qishe precipitation, and the lacquer-resolving heart and the degree of clarity indicate In this book, the solvable (m ^ L) β 2. Calcium nutrient precipitation method: the first is "4 amount of 〇 < 〇Η) 2 C * C 丨 2 (weight Λ about 丨 〇〇: 32> ; Know the reaction of gas-containing and clean water * The pH in the reaction tank is about 7J. After the fast attack, save the button PACdUKl. Draw the naan Α 糌 into the polymer petal 4ΗΗ last i Shen 曩 糌 t sink *, Shangqing 芋 瀵 軋 車 ft Chungju parrots and other acid plant grinding water 瀛 舍 澹 逋 16 This paper scale uses the Chinese National Standard (€ Can) 8 4 specifications (210 侂 297 Gong ||) 83. 3.10,000 A7

V. Description of the invention (15) Table 3 Comparison of the effects of using different methods to deal with the fluorine-containing grinding water in the image tube industry tMk Real · f Examination conditions Realized M k Wastewater male float 9tt HRTw Ci / FF · Concentration ΰ Fuming MAtt ifd Γ Concentration Degree (min) Ten thousand ears ratio (mfl > soil grain 8d2 moisture content kgoryiut kgcake method) It (rag / L) (mg / L) (mol / mol) (n »g ^ L) (_ kgF kgF (H) 1 120 220 48 0.8 14 35 Huakang 2 60 ISO 48 1.0 12 20 JO 10 3.3 — 71 3 50 180 48 0J 15 10 method 4 80 150 48 1.0 12 15 iJlU 1 80 150 120 1.2 8-— 70 7.9 One method < it > 1. It flow gold JL6 water contention "X * 太» iiiLSS gold "Hou high Ο Z its old work conditions · table" speed · X HRTw table Φ grinding water hydraulic stop time ( Hydraulic Dunenlion Times for Wutcwater) «Table 4 uses different methods to compare the effects of nickel plating water in the electroplating industry nl nt— lit mn ^-a I (please read the precautions on the back first and fill in this book). "Experiment on Printing and Testing of Printed T-Shirts" by the Beigong Consumer Cooperative Society Experiment Μ Ά Method No. Fushui Ni concentration < mg / L) Water washing amount CUmin) Phosphorus linm (mg / t) Phosphorus phosphate washing amount (Umin) CT / Hi Wanxun ratio (mol / mol) pH Κί3 Nit (mg / i) 霣 分 W Grain ttd2 (mm) Moisture content m kgerysut kgNi kscakf ......... K5 itx minus * 涑 tt 1 150 22 10,600 3.03 3.6 9.6 0.5 1., 5 »9.0 Hua 2 2 192 22 10,600 2.02 2,8 9.4 0,3 U 99.4 0.37 i〇2.41 ·-64 ΜΛ 3 1S5 22 10.600 2.02 2,9 9-4 0.2 0 5 99.7 method 4 210 22 12.720 2.02 2.6 9,6 0.3 0.5 99.7 Tradition--SiU 1 150-Π, 720-3.0 Ϊ0 0.8--〇6,74 .- it-Λ method < ii > 1. Ni, and Nil analysis Λ degree is ratio & method In the current Dang analysis value 2. 2. Νί * indicates that the injection of the solution »Decomposition Nickel« Degree * The Emperor ’s Out of Λ Water Essence "is the quick solution of the acid deduction ΛΙϊΛΛ degree (3. The total concentration of CT table bearing broken II (ToU 丨 Carbonate * Concemration) · 17

Lm., This paper scale is applicable to the Chinese National Standard (CNS) A4 current format (210X297mm) 83. 3.10,000 A7 B? ^ 1C313 V. Description of the invention (16) Table 5 uses different methods and is printed in the "Printing Party Road Board" Comparison of the effects of industrial steel-containing wastewater. Experiments and tests. V. test and t. Test methods. Extensive water. Cu concentration. Broken acid concentration. Οι (kg ^ »i2_h) CT / Cu million ear ratio (mol / mol) pH Cu, Cu * (mi ^ L) Donkey Concentrate A * W score 〇 > M blast furnace rent plant d2 < mm) Fresh water humiliation (H > k | 〇ry «t ·! fc * Cu k§write fc * Co minus King fH> "! 9,400 10.600 0.73 1.6» 96 0.52 93 188 96.6 bed 2 9,400 \ OfiOO 0.73 1.6 9.06 0.24 98 230 96.4 3 10,200 10,600 1.46 1,6 108 OJi 39 128 9S, 6 0.48 to 134 — 76 method 4 10,200 10,600 1.46 1.6 1.27 45 87 n.4 5 10,200 10,600 1.46 1.6 t96 0.53 n 160 96.9 1 48 10,600-5.6 9.0 2.1-~--80 — 9.71 One sinking method I —-I-1-»1 — 1 ii 1_ i 11 < spit > I. Coarse liquid cobbles method: 丨 酼 for the waste Jie ft product, 翥 Lu 鲥 5 repair containing altar dish acid _ (SPS suspected 陮Ji Di She * about Μ 当 于 镝 湾 才 # 2: t. 2. C »i expresses the" concentration of Jiezhiye Jiezhigang · Cut expresses the water of the water f containing precipitates and acid solution to solve the embroidered song. 3. fcM's first CT / Cull ear ΛΙ.6, because the water "soft broken acid radical, equivalent to ii. ^ CT / Cu humiliation ratio, so other Beibiao only need a sudden" gas is M6 Moer (please Please read note f on the back and then fill in this page) Ministry of Economic Affairs, Central Bureau of Industry and Commerce, Beigong Consumer Cooperatives, Inner Experiment, Experimental Conditions, P, Porium 4, Phosphate Washing Water Blue Phase HRTw οτ / ο · -η C »-H Si 〇2 iOTr kgvytM ftl € Method of editing it OnH concentration courtesy (min) 10,000 ears specific degree of degree Δ guide Λ Jt M < a Paniei:!% 0 minus (m / ΛΛ (moUfnnk) «) < «« Λ-) (MmliWom) kc〇iH m * (mm) f%) (H) 1 206 Ca (OH) 2- 10 1.0 η 16.2 m 5.41 0.67 5.5 78 NaOH. Huakang Ι4Λ 2 202 N « 2C〇3- 10 0.6 56 1S.0 m 10.0 146 2.0 tt) 2,78-89 Method NaOH 3 196 NaOH · 10 0.8 η 17.0 747 5.35 0.77 2.78 S9 N «OH traditional% A x m 200 Ci (OH) 2 50 1.2 150 18.0 61Q--*-80 one 23-it Table 6 Comparison of the hardness of raw water treated with different methods and medicinal steel "Stove" 丨. Department "Lishui, its water quality C * -H about SOOmfL · The specific t is 6 »μπ» »κΛη, SK > 2 about ltameiL '* 2. The basis for calculating the cost of the drama is as follows 2_〇3 no / kg, 9βΗ N * 2C〇3 Tgit / kg · «« 4 Ν · ΟΗ mildew · 18 This paper scale uses the national standard rate (CNS) 84 specifications (210X297 public cuan) 81 3.10,000 310313 5. Description of the invention (17) Table 7 uses different methods and Harrier «, the effect of processing cooling ytterbium ring water hardness is relatively poor test 1Γ test experimental beacon • treasure • beginning ... _ _ washing water HRTv» CTfC * MC * «HS〇2 ft conductivity κ κ V «« 雒 ♦ ιΚ PfiH method 鸩 appearance and degree (mg / L, seed ore (min) 10,000 erbium concentration concentration degree curve sample < Q umbrella fH) kter] »t« t kg «ain iron iron (nmlMiol) (< ng ^ L) (" «Λ ·) (μι · .Ηβ · ^ αη) kcC ^ H (mm) k $ C» k | Oi HU Ϊ 840 N * 3C〇3- N «OH to 0.6 m 39.1 2Μ0 9-1 5.1 into it 2 3 79β N112CO3- N * iC〇3 10 0,4 Ϊ38 34 > J9〇Ϊ59 α5 1.0 to 2.78 — It Tradition 1 840 N * 2C〇3- Ν · ΟΗ-0,6 350 44 Talk---80 _! 2.S-Method < tt > 1. I »Tu_ 缮 農 难Wood, its washing water fCt-HWWOn ^ L. A conductivity of 3,800μιη »· ^ αη, Sj〇2« ^^ m (^ L. ~ ^ J. No / 1 / 1B〇 ·· H table * incense the kilogram calcium hardness fee Λ, Jt / m3 table bearing it it ton of this work _ product fee * 3 · Ni2C〇3_N * 〇H table * N « jC〇3 is the main body |, N * DH is the pH furnace _ * ♦ • When the miniature outline, this * * * The peak mole at the conductivity is 揝 HNnc〇3 鶬 费 I η «water ratio conductivity; 1 about 680pmhoa / cm, and then "(Qi Zuo shoulder · Table 8 using different methods to deal with phosphorus-containing ballast water effect comparison 1 I 1 I —! I IIII (Jing Xian" read the note on the back $ item-fill in the purchase "economy 9 m nn nn printed by the Employees 'Consumer Cooperative of the Ministry of Central Development and Customs Bureau »Testing the inspection conditions t' Mackerel method ft it | i Water P〇4 > concentration (m ^ M PH Ca / P〇4 million ears) t (moUvmA) HRTv »(ηβη) Table" Erhythm < «Λ) Κ > 4,3 * P〇413 'mt)» Quenwei «Concentration change (w * l) M * 艚 觎 礼 句 _) ( H) ίΙΡΟΓ kfO ^ SB MPO? ItiC Threat washing ft 1 306 9 3 40 50 2.1 Ϊ4Α 33 粑 床 ΜΛ 2 306 10 3 50 40 U -Qi 173 US 10 i, B2 „7J 3 306 η 3 30 60 1.9 toi g 238 Tungsten transfer 1 306 10 3 0.8 60 3.6 «period ΧΛ 2 306 to 3 one bond 0.8--~ 70 one 7.4 ~ method 3 306 10 3 0.9 eo ui 1-, C «2+ 瀵 POX soomg ^ included in jibi lirtiiFoP • Guangnongdi · acid 2. P〇4» 3 · Table * «*» * Deplantation P〇43 · Concentration · P〇4 | JJt * The content of stat · * · Boiled Jfc solution P o43 · Yu degree 3. O.lMNaOH Wei «Bump MpH furnace · This paper scale is suitable for China National Standard (〇 邶) 6 4 specifications (210 > <; 297 Gongluan) 83. 3. 10,000 V. Description of the invention (18) A 7 B7 Table 9 Comparison of the effects of using different methods to treat fluorine-containing or argon-phosphorus grinding water f-test method t riding s%% experimental reel tijing seal remote washing Water NH3 * N concentration compliance | «• Water P043 'Concentration Λ (mg / L) pH« Product «碕 (kgNH | * N ίη \ ι " h) Table # Continuous degree (m / h) nh3 * Nt (n« / UP〇493 '(mg / t) ρ〇Η3- (mg / L) Recording magic (mm) 1 water climbing k 麄 ervat ·! Kflcalu reduced responsibility Hmyu k »N« 3 * N 浼 tt 1 1,000 6,786 ίο 3.15 50 284 2,1m 2 * 243 chemical bed MA 2 500 3393 10 3J5 40 114 1,00 «P25 Ϊ.75 10 19.71 — 72 Method 3 too 679 to 0,42 30 2i 23 Π0 Ticks 1 100 679 10 26 n 60 53.5% 鞑 ίκη 2 100 679 10-26 35-— 70 a 7iJ-method 3 100 679 10 26 35 80 107 < Note: > 丨 · l & a mp; MMgC 丨 2 Concentration 200 ~ 2,000me / u · Into HiMMI Yonghe Yingshou Phosphoric Acid 2. O.lMNeOHfll Gang Ming Ming pH Inlay · (Please read the precautions on the back and fill in this page first) Installed. * 1T line · Printed by Zhengong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. The size of the paper is applicable to the Chinese National Standard (CNS> A4 specifications (210 × 297 mm) 83.3. 10,000

Claims (1)

310313 A 8 88 C8 D8 Year 2;) Amendment 1 Supplement 1 Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Labor and Consumers Cooperatives 6. Patent application Fan Garden L A fluidized bed crystallization wastewater treatment device, including a reaction tank (4), inside Containing Danli (22), the waste water to be treated flows from the bottom of the reaction tank and flows upwards, and the reaction tank is externally connected with a return water circuit, which is used to make part of the waste water in the reaction tank pressurized and then return, so that The above-mentioned tundish is fluidized. The reaction tank is connected with a medicament inlet (2) for injecting medicament, so that the pollutants in the waste water crystallize on the fluidized support, and the treated waste water is discharged from the top outlet of the reaction tank (7) Outflow. 2. The fluidized bed crystallization wastewater treatment device as described in item 1 of the patent application scope, wherein a plurality of stones (21) are further provided at the bottom of the reaction tank, and the stones are stacked up from large to small. 3- The fluidized bed crystallization wastewater treatment device as described in item 2 of the patent application park, wherein the reaction tank (4) is cylindrical. 4. The fluidized bed crystallization wastewater treatment device as described in item 丨 of the scope of the patent application, wherein the number of return pipes (80) of the return water circuit in the reaction tank depends on the diameter of the reaction tank, every 40 ~ 50 cm with a return tube. 5. The fluidized bed crystallization wastewater treatment device as described in item 4 of the patent application scope, wherein the number of the above-mentioned return pipes is two to five. 6. The fluidized bed crystallization wastewater treatment device as described in item 5 of the patent application scope, wherein each of the return pipes is provided with a plurality of manifolds (81). 7. The fluidized bed crystallization wastewater treatment device as described in item 6 of the patent application park, wherein the manifolds (81) of adjacent return pipes (80) are staggered and can be connected into a regular triangle. 8. The fluidized bed crystallization wastewater treatment device as described in item 7 of the patent application range, wherein the manifold (81) extends radially into the return pipe (80) into the inside of the return pipe (80). 21 This paper XJt uses the National Standards for Sleepy (CNS) (21 {) < 297 read) nn —mu * nn BHC κ »ϋ mV m '* ^ 0 ^ Bn IW (please read the note on the back first Please fill in this page for details) Printed by the Central Standards Bureau of the Ministry of Economic Affairs, printed by Λ 8 Β8 C8 D8 π, and applied for a patent scope 9. As described in the application of the patent garden, the fluidized bed crystallization wastewater treatment device It further includes a test tube (2 ') connected to the reflux water inlet (1), so that the test solution is mixed with the reflux water before entering the reaction tank (4), for adjusting the acid-base value in the reaction tank. 10. The fluidized bed crystallization waste water treatment device as described in item 1 of the patent application scope, which further includes a first waste water pipe (82), which enters from the bottom of the reaction tank to introduce waste water into the reaction tank. Η. As described in item 10 of the patent application scope, the fluidized bed crystallization wastewater treatment apparatus is provided with a plurality of holes (85) on the first waste water pipe (82) in the reaction tank. The rods (83) and (84) are connected in parallel to each other, and a plastic thin net covers the first waste pipe (82). The blocking of the rods (83) and (84) makes the plastic thin net and There is a predetermined distance between the above holes (85) 0 12. The stream-bed fluidized bed crystallization wastewater treatment device as described in item u of the patent application scope, wherein the sum of the cross-sectional areas (a) of all the above holes (85) is higher than the above The inlet cross-sectional area (A) of a waste water pipe (82) is small. 13. The fluidized bed crystallization waste water treatment device that escaped from item u of the patent application scope, in which the inner wall of the above reaction tank (4) is provided The protective cover (86) 'and one end of the first waste water pipe (82) is inserted into the protective cover (8) and fixed. 14. The fluidized bed crystallization wastewater treatment device as described in item 1 of the patent application scope, which further includes a second wastewater pipe (8S), which enters from the top of the reaction right and extends down to the reaction tank (4) The bottom part is used to introduce waste water into the reaction tank (4). 22 (Please read the precautions on the back before filling out this page) Pack -11 The Ministry of Economic Affairs, Central Bureau of Standards and Technology, Consumer Printing and Cooperative Society, cracked Λ 8 Β8 C8 D8 VI. Application for Patent Fan Garden " " 15 · The fluidized bed crystallization wastewater treatment device as described in item 14 of the patent application scope, in which The second waste water pipe (88) is further divided into a plurality of manifolds at the bottom of the reaction tank (4). 16. A fluidized bed crystallization wastewater treatment device as described in item 15 of the patent application, wherein the manifolds are evenly distributed on the cross section of the reaction tank. 17. The fluidized bed crystallization wastewater treatment device as described in Item 16 of the patent application scope, wherein the reaction tank (4) is cylindrical, and the second waste water pipe (88) is intercepted: placed in the reaction tank The center position of the cross section. 18. The fluidized bed crystallization wastewater treatment device as described in item 17 of the patent application scope, wherein the number of the manifolds depends on the diameter of the reaction tank (4), and three manifolds with a diameter of 50 to 150 cm are provided , 5 manifolds (881) with a diameter of 200 to 250 cm. 19. The fluidized bed crystallization wastewater treatment device as described in item 18 of the patent application scope, wherein a plurality of long grooves (881) are further provided along the axial direction at the periphery of the end of the manifold. 〇20. The fluidized bed crystallization wastewater treatment device according to item 1, wherein the agent inlet (2) is connected to the reflux water inlet (1) so that the agent is mixed with the reflux water before entering the reaction tank (4) . 21. The fluidized bed crystallization wastewater treatment device described in item 丨 of the patent application scope, which further includes a supplementary support pipe, which is branched from the return water circuit and then connected to the half of the reaction tank (4) At a high place, a manifold is also connected to the crystal-replenishment pipeline, which communicates with the support body to be refilled, and part of the reflux water can flow back to the reaction tank (4) through the crystal-replenishment pipelines (71), (72) ， Simultaneously produce siphon 23 SXC313 (please read the note item on the back and fill in this page). The size of this paper is applicable to China National Frame Rate (CNS) A4 specification (210X297mm). The cooperative prints AS B3 05 D8, and applies for the scope of patent application to bring the dandelion (22) to be added into the reaction tank through the manifold and the syringe (151) and the inlet of the dandelion (8). 22. The stream-bed fluidized bed crystallization wastewater treatment device as described in item 1 of the patent application scope further includes a row of crystal pipes connected to the top and bottom of the reaction tank ⑷, and also connected to the tap water source, It is used to introduce tap water from the top of the reaction tank (4) and flow downwards, and then use the crystal tube to route the bottom of the reaction tank (4) to bring out the surface crystallization of the shoulder (22), or by the reaction The top of the tank (4) introduces tap water (10) and maintains the liquid level in the tank and the support (22) is fluidized, and the above fluidized support (22) can be routed through the row of crystal tubes to the bottom of the reaction tank (4) discharge. 23. A fluidized bed crystallization wastewater treatment device, including a reaction tank (4), which contains a support (22), and the wastewater to be treated flows upward from the bottom of the reaction tank (4), thereby making the support (22) Fluidization, the reaction tank (4) is also connected with a reagent inlet (2) for injecting the reagent, so that the pollutants in the waste water crystallize on the fluidized captivity (22), the reaction tank (4) also A return water circuit is connected externally, and the wastewater to be treated is flowed from the first waste water pipe (82) provided at the bottom of the reaction tank and the second waste water pipe (from the top of the reaction tank (4) and extended to the bottom according to the flow rate and concentration) ( 88), and one of the inlets (1) of the return water circuit enters the reaction tank (4), and the treated wastewater flows out from the top of the reaction tank (4). 24. The fluidized bed crystallization wastewater treatment device as described in item 23 of the patent application scope, wherein when wastewater enters the reaction tank from the first (82) or second wastewater pipe (88), it flows upward and divides Two parts flow out of the reaction tank (4), and part of them are reintroduced back into the reaction tank (4) through the return water circuit. 24 This paper uses Zhongyi «Family Ladder Standard (CNS) A4C grid (210X297mm)] HI ------ ί I-i 1 ^. I I ................ ..- n I I- —I!-------- I— jf (please read the precautions on the back and then fill in this I) AS B8 C8 D8 VI. Patent application scope 25. If applying for a patent The fluidized bed crystallization wastewater treatment device according to item 23 of the scope, wherein when the wastewater enters the reaction tank (4) from the inlet (1) of the return water circuit, it flows upwards and is completely discharged from the reaction tank (4) The top water outlet (7) flows out. -------- 1 _install ------ order ----- £ line (please read the item "H" on the back first and then fill in this page). Printing 5 2 The paper size is based on China National Standard (CNS) A4 (210X297mm)