CN116002902B - A kind of equipment and method for deep treatment of organic matter in wastewater from preserved fruit processing - Google Patents
A kind of equipment and method for deep treatment of organic matter in wastewater from preserved fruit processing Download PDFInfo
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- CN116002902B CN116002902B CN202211685423.2A CN202211685423A CN116002902B CN 116002902 B CN116002902 B CN 116002902B CN 202211685423 A CN202211685423 A CN 202211685423A CN 116002902 B CN116002902 B CN 116002902B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
本发明涉及凉果加工废水处理技术领域，具体涉及一种凉果加工废水有机物深度处理设备及方法，通过采用耐酸菌降解与Fenton相结合的凉果废水处理技术，依靠耐酸菌直接处理酸性凉果废水，代替加碱调节pH及混凝沉淀预处理，后续由Fenton与耐酸菌降解深度处理，工艺流程依次为：调节池→耐酸菌降解池→沉淀池→Fenton氧化池→耐酸菌降解池→Fenton氧化池→沉淀池→生物滤池。与传统凉果废水处理技术相比，本发明提出的凉果废水处理方法能够实现高标准出水排放，显著降低出水COD及色度。
The present invention relates to the technical field of wastewater treatment for preserved fruits, and specifically to a device and method for deep treatment of organic matter in wastewater from preserved fruits. The wastewater treatment technology for preserved fruits that combines acid-resistant bacteria degradation with Fenton is adopted, and acidic wastewater is directly treated with acid-resistant bacteria, instead of adding alkali to adjust pH and coagulation and precipitation pretreatment, followed by deep treatment by Fenton and acid-resistant bacteria degradation. The process flow is as follows: regulating tank → acid-resistant bacteria degradation tank → sedimentation tank → Fenton oxidation tank → acid-resistant bacteria degradation tank → Fenton oxidation tank → sedimentation tank → biological filter tank. Compared with traditional wastewater treatment technology for preserved fruits, the wastewater treatment method for preserved fruits proposed by the present invention can achieve high-standard effluent discharge and significantly reduce effluent COD and chromaticity.
Description
Technical Field
The invention belongs to the technical field of Chinese herbal medicine processing wastewater treatment, and particularly relates to a device and a method for deeply treating organic matters in Chinese herbal medicine processing wastewater.
Background
The preserved fruit processing wastewater comprises salt soaking pond drainage, sugar soaking pond drainage, salt soaking fruit rinse water and the like, the rinse water and the sugar soaking pond drainage are mainly used, the rinse water quantity is large, the COD concentration of the soaking pond drainage is high, the preserved fruit processing wastewater is high-salt high-organic matter wastewater, the BOD5/COD is high, the nitrogen and phosphorus concentration is low, and the direct drainage of the preserved fruit processing wastewater can cause serious pollution to water, so that the preserved fruit processing wastewater is discharged after being treated.
The existing preserved fruit wastewater treatment process generally adopts a coagulating sedimentation mode to treat, and a large amount of coagulant and coagulant aid are needed to be used when coagulating sedimentation is carried out on the wastewater, so that the medicament cost is high, and a large amount of sludge is generated, so that the wastewater is required to be treated by adopting a biological treatment process.
When the biological treatment process is adopted, the pH of the acidic preserved fruit wastewater needs to be adjusted by adding alkali to adapt to the environmental conditions of microbial degradation, and in some cases, the cost of the medicament for adjusting the pH by adding alkali is up to 20 yuan/ton of water, so that the medicament cost for wastewater treatment can be increased.
Disclosure of Invention
The invention aims to provide a device and a method for deeply treating organic matters in preserved fruit processing wastewater, which aim to adopt a preserved fruit wastewater treatment technology combining acid-fast bacteria degradation and Fenton, directly treat acid preserved fruit wastewater by means of acid-fast bacteria, replace alkaline addition to adjust pH and coagulating sedimentation pretreatment, so that the addition amount of alkali liquor can be reduced, and further the reagent cost of wastewater treatment is reduced.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the invention provides a deep treatment method for organic matters in preserved fruit processing wastewater, which comprises the following steps:
homogenizing the preserved fruit wastewater with different organic matter concentrations produced in each procedure in an adjusting tank, and adopting a perforated pipe for aeration stirring;
The homogenized preserved fruit wastewater enters an acid-resistant bacteria degradation tank, and acid-resistant bacteria complete removal of most organic matters under an acidic condition;
intercepting biomembrane sludge formed by acid-resistant bacteria in a sedimentation tank, and simultaneously conveying part of sludge back to the acid-resistant bacteria degradation tank;
Carrying out first-stage Fenton oxidation in a Fenton oxidation tank, wherein the pH value of the effluent of the sedimentation tank is not required to be adjusted by adding acid;
The acid-resistant bacteria degradation pool removes intermediate products of the first-stage Fenton oxidation under an acid condition through acid-resistant microorganisms;
then carrying out second-stage Fenton oxidation in the Fenton oxidation tank, wherein the pH value of the inlet water is not required to be adjusted by adding acid, and the pH value of the outlet water is adjusted to 7.5-8.5 by adding alkali;
Intercepting iron mud formed after alkali is added into effluent of a Fenton oxidation pond in a sedimentation pond;
And (3) deeply purifying the effluent of the second-stage Fenton oxidation in the biological filter tank, and simultaneously removing residual hydrogen peroxide to eliminate hydrogen peroxide interference of water sample COD detection.
Wherein, the acid-resistant bacteria degradation tank adopts a three-dimensional elastic filler as a biological film carrier.
Wherein, the Fenton oxidation uses hydrogen peroxide and ferrous sulfate, and the acid condition of the inlet water is utilized, so that the acid is not needed to be added for acidification of the inlet water.
Wherein, the biological filter uses granular activated carbon as a filler to inoculate common activated sludge of the urban sewage treatment plant.
The invention also provides equipment for deeply treating organic matters in the preserved fruit processing wastewater, which comprises a box body and an adjusting component, wherein the adjusting component comprises a supporting seat, a rotating block, a guide rail, a sliding block, a movable rod, a stirring blade and a scraping plate, the supporting seat is fixedly arranged on the upper surface of the box body, the rotating block is used for rotating the guide rail, the guide rail is positioned on one side of the rotating block away from the supporting seat, the sliding block is in sliding connection with the guide rail and is positioned on one side of the guide rail away from the rotating block, the movable rod is fixedly arranged on one side of the sliding block away from the guide rail, the stirring blade is used for stirring and mixing wastewater and a degradation agent in the box body, and the scraping plate is positioned on one side of the stirring blade close to the box body.
The adjusting assembly further comprises a hydraulic cylinder and a telescopic rod, wherein the hydraulic cylinder is fixedly arranged on the lower surface of the supporting seat, and the telescopic rod is connected with the output end of the hydraulic cylinder and is positioned on the lower surface of the hydraulic cylinder.
The adjusting assembly further comprises a fixing plate, wherein the fixing plate is fixedly arranged at the lower end of the telescopic rod and is fixedly arranged at the outer side of the movable rod.
The invention relates to a device and a method for deeply treating organic matters in preserved fruit processing wastewater, which are characterized in that acid-resistant bacteria degradation and Fenton combined preserved fruit wastewater treatment technology is adopted, acid-resistant bacteria are directly used for treating acid preserved fruit wastewater instead of alkaline adjustment pH and coagulating sedimentation pretreatment, and the subsequent advanced treatment by Fenton and acid-resistant bacteria degradation comprises the following technological processes of a regulating tank, an acid-resistant bacteria degradation tank, a sedimentation tank, a Fenton oxidation tank, an acid-resistant bacteria degradation tank, a Fenton oxidation tank, a sedimentation tank and a biological filter. Compared with the traditional preserved fruit wastewater treatment technology, the preserved fruit wastewater treatment method provided by the invention can realize high-standard effluent discharge and remarkably reduce effluent COD and chromaticity.
Drawings
The invention may be further illustrated by means of non-limiting examples given in the accompanying drawings.
Fig. 1 is a flow chart of a method for deeply treating organic matters in Chinese herbal medicine processing wastewater according to a first embodiment of the invention.
Fig. 2 is a schematic flow chart of a method for deeply treating organic matters in Chinese herbal medicine processing wastewater according to a first embodiment of the invention.
Fig. 3 is a schematic structural view of the whole apparatus for deep treatment of organic matters in Chinese herbal medicine processing wastewater according to a second embodiment of the present invention.
Fig. 4 is a schematic sectional view of a device for deeply treating organic matters in Chinese herbal medicine processing wastewater along a rotating rod according to a second embodiment of the present invention.
Fig. 5 is an enlarged view of a portion a of fig. 4 of a device for deeply treating organic matters in Chinese herbal medicine processing wastewater according to a second embodiment of the present invention.
In the figure, the device comprises a 101-box body, a 102-adjusting component, a 103-supporting seat, a 104-rotating block, a 105-guide rail, a 106-sliding block, a 107-movable rod, a 108-stirring blade, a 109-scraping plate, a 110-hydraulic cylinder, a 111-telescopic rod, a 112-fixed plate, a 113-control motor, a 114-rotating rod, a 115-blade body and a 116-rotating plate.
Detailed Description
In order that those skilled in the art will better understand the present invention, the following technical scheme of the present invention will be further described with reference to the accompanying drawings and examples.
First embodiment
Referring to fig. 1 to 2, fig. 1 is a flowchart illustrating a method for deeply treating organic matters in Chinese herbal medicine processing wastewater according to a third embodiment, and fig. 2 is a flowchart illustrating a method for deeply treating organic matters in Chinese herbal medicine processing wastewater according to a first embodiment of the present invention, the present invention also provides a method for deeply treating organic matters in Chinese herbal medicine processing wastewater, comprising the following steps:
S101, homogenizing the preserved fruit wastewater with different organic matter concentrations generated in each working procedure in an adjusting tank, and adopting a perforated pipe for aeration and stirring;
s102, enabling the homogenized preserved fruit wastewater to enter an acid-resistant bacteria degradation tank, and removing most of organic matters by acid-resistant bacteria under an acidic condition;
s103, intercepting the biomembrane sludge formed by the acid-fast bacteria in a sedimentation tank, and simultaneously conveying part of the sludge back to the acid-fast bacteria degradation tank;
S104, carrying out first-stage Fenton oxidation in a Fenton oxidation tank, wherein the pH value of the effluent of the sedimentation tank is not required to be adjusted by adding acid;
s105, removing an intermediate product of the first-stage Fenton oxidation by the acid-resistant bacteria degradation pond under an acid condition through acid-resistant microorganisms;
S106, performing second-stage Fenton oxidation in the Fenton oxidation tank, wherein the pH value of the inlet water is not required to be adjusted by adding acid, and the pH value of the outlet water is adjusted to 7.5-8.5 by adding alkali;
S107, intercepting iron mud formed after alkali is added to effluent water of a Fenton oxidation pond in a sedimentation pond;
s108, deeply purifying the effluent of the second-stage Fenton oxidation in the biological filter, and simultaneously removing residual hydrogen peroxide to eliminate hydrogen peroxide interference of water sample COD detection.
In the embodiment, when the organic matters in the preserved fruit processing wastewater are treated, the organic matters are efficiently removed by mainly relying on acid-fast bacteria degradation pretreatment and Fenton oxidation advanced treatment, the chromaticity is obviously reduced, and the high-standard drainage requirement is met. The process has the advantages that (1) acid-resistant bacteria are used for directly treating acidic preserved fruit wastewater without adding alkali in advance to neutralize pH, (2) Fenton oxidation is used for utilizing the acid condition of the inlet water and does not need acidification inlet water, (3) the two-stage Fenton-biodegradation combined process is used for remarkably reducing the hydrogen peroxide usage amount of Fenton oxidation, and (4) the organic load impact resistance is strong and the operation stability is high.
Wherein, the acid-resistant bacteria degradation tank adopts a three-dimensional elastic filler as a biological film carrier, the filling ratio of the three-dimensional elastic filler is 50% -80%, and the filler film formation is completed in about 5 days.
Secondly, hydrogen peroxide and ferrous sulfate are used for Fenton oxidation, acid addition is not needed for acidification of water inflow under the acidic condition of water inflow, the residence time of a Fenton oxidation tank is 2h, the addition amount of hydrogen peroxide is 900-1200 mg/L, the addition amount of ferrous is 155-210 mg/L, compressed air is stirred or mixed by a stirring paddle, the residence time of the Fenton oxidation tank is 2h, the addition amount of hydrogen peroxide is 300-400 mg/L, the addition amount of ferrous is 55-70 mg/L, and compressed air is stirred or mixed by a stirring paddle during the second Fenton oxidation.
Thirdly, the biological filter uses granular activated carbon as a filler to inoculate common activated sludge of the urban sewage treatment plant, the biological filter uses cylindrical granular activated carbon (diameter is 6-8 mm), the height of a carbon layer is 1.5-2.5 m, the residence time is 2-4 h, and a perforated aeration pipe is arranged at the bottom.
When the method for deeply treating organic matters in the preserved fruit processing wastewater is used, the preserved fruit processing wastewater is uniformly mixed under the aeration and stirring effects of the regulating tank, and the residence time is 5-7 d; part of the sediment sludge (acid-resistant microorganisms) of the sedimentation tank flows back to the regulating tank, and acid-resistant bacteria degrade organic matters of the pretreated acid preserved fruit wastewater; the method comprises the steps of adding 10% -20% of acid-resistant microbial agent with a tank capacity in an acid-resistant bacteria degradation tank starting stage, adding 50% -80% of solid elastic filler, completing filler hanging membrane about 5d, retaining time of the acid-resistant bacteria degradation tank for 3% -6 d, retaining biological sludge formed by acid-resistant bacteria in the sedimentation tank, settling time for 2% -4 h, returning a part of the biological sludge to the acid-resistant bacteria degradation tank, returning sludge reflux ratio for 30% -50%, returning the rest biological sludge to a regulating tank, retaining time of the Fenton oxidation tank for 2h, adding 900% -1200 mg/L of hydrogen peroxide, adding 155% -210 mg/L of ferrous iron, stirring or stirring paddles, adding 10% -20% of acid-resistant microbial agent with a tank capacity, retaining time of 50% -80% of solid elastic filler, completing filler hanging membrane about 5d, retaining time of the acid-resistant bacteria degradation tank for 1% -2 d, retaining time of the Fenton oxidation tank for 2h, adding 300% -400 mg/L of hydrogen peroxide, adding 55% -70 mg/L of ferrous iron peroxide, adding compressed air or 5mm of a cylindrical carbon dioxide sedimentation tank, retaining time for 5-70 mm of a carbon dioxide sedimentation tank, and forming a cylindrical carbon dioxide sedimentation tank, and setting the diameter of a perforated carbon tube, and setting the pH value of the sedimentation tank to be 5% -2.8 mm, and enabling the carbon tube to be filled with compressed air, and the sedimentation tank to be filled with compressed air, and the diameter to be high, and the sedimentation tank is formed.
Specific examples are given below.
EXAMPLE 1 organic deep treatment of Li Ziliang fruit processing wastewater
The COD concentration of the plum processing wastewater is 8500mg/L, the pH is 3.65, and the salinity is 2.6%. And (3) regulating aeration and stirring of a tank, adding acid-resistant bacteria with the tank capacity of 5%, and keeping the time for 7d, wherein COD (chemical oxygen demand) of effluent of the tank is 5250mg/L. The acid-resistant bacteria degradation tank 1 is inoculated with 10% of acid-resistant bacteria agent with a tank capacity, the retention time is 5d, the COD of effluent is 830mg/L, and the pH of the effluent is 4.10. The hydrogen peroxide adding amount of the Fenton oxidation pond 1 is 1200mg/L, the ferrous adding amount is 210mg/L, the reaction is carried out for 2 hours, the COD of the effluent is 330mg/L, and the pH of the effluent is 3.80. The acid-resistant bacteria degradation tank 2 is inoculated with 20 percent of acid-resistant microbial agent with the tank capacity, the retention time is 2d, the COD of the effluent is 285mg/L, and the pH of the effluent is 4.20. The hydrogen peroxide adding amount of the Fenton oxidation pond 2 is 300mg/L, the ferrous adding amount is 55mg/L, the reaction is carried out for 2 hours, the COD of the effluent is 198mg/L, and the pH of the effluent is 3.80. The pH value of the inlet water of the biological filter is 7.6, the height of the activated carbon layer is 2m, the residence time of an empty bed is 4h, the activated sludge of an aerobic tank of an urban sewage treatment plant is inoculated, and the COD of the outlet water is 110mg/L.
Example 2 deep organic matter treatment of olive Cold fruit processing wastewater
The COD concentration of the olive processing wastewater is 11030mg/L, the pH is 3.96, and the salinity is 3.92%. And (3) regulating aeration and stirring of a tank, adding acid-resistant bacteria with the tank capacity of 10%, and keeping for 5 days, wherein COD (chemical oxygen demand) of effluent of the tank is 5700mg/L. The acid-resistant bacteria degradation tank 1 is inoculated with 10% of acid-resistant bacteria agent with a tank capacity, the retention time is 6d, the COD of effluent is 1030mg/L, and the pH of the effluent is 4.79. The hydrogen peroxide adding amount of the Fenton oxidation pond 1 is 1200mg/L, the ferrous adding amount is 210mg/L, the reaction is carried out for 2 hours, the COD of the effluent is 520mg/L, and the pH of the effluent is 4.20. The acid-resistant bacteria degradation tank 2 is inoculated with 10 percent of acid-resistant microbial agent with the tank capacity, the retention time is 2d, the COD of the effluent is 340mg/L, and the pH value of the effluent is 4.96. The hydrogen peroxide adding amount of the Fenton oxidation pond 2 is 300mg/L, the ferrous adding amount is 55mg/L, the reaction is carried out for 2 hours, the COD of the effluent is 226mg/L, and the pH of the effluent is 4.54. The pH value of the inlet water of the biological filter is 7.2, the height of the activated carbon layer is 2m, the residence time of an empty bed is 3h, the activated sludge of an aerobic tank of an urban sewage treatment plant is inoculated, and the COD of the outlet water is 180mg/L.
Second embodiment
Referring to fig. 3 to 5 on the basis of the first embodiment, fig. 3 is a schematic overall structure diagram of a deep processing apparatus for organic matters in fruit processing wastewater according to a second embodiment of the present invention, fig. 4 is a schematic cross-sectional view of the deep processing apparatus for organic matters in fruit processing wastewater along a rotating rod 114 according to the second embodiment of the present invention, and fig. 5 is an enlarged view of a portion a of fig. 4 of the deep processing apparatus for organic matters in fruit processing wastewater according to the second embodiment of the present invention. Fig. 2 is a schematic cross-sectional view of a device for deeply treating organic matters in Chinese herbal medicine processing wastewater according to a first embodiment of the present invention. The invention provides a deep processing device for organic matters in preserved fruit processing waste water, which comprises a box body 101 and an adjusting assembly 102, wherein the adjusting assembly 102 comprises a supporting seat 103, a rotating block 104, a guide rail 105, a sliding block 106, a movable rod 107, a stirring blade 108, a scraping plate 109, a hydraulic cylinder 110, a telescopic rod 111 and a fixed plate 112, the rotating block 104 comprises a control motor 113 and a rotating rod 114, and the stirring blade 108 comprises a blade body 115 and a rotating plate 116.
In this embodiment, the adjusting component 102 is located at one side of the casing 101, and is used for adjusting the height of the scraper 109, so that the scraper 109 can scrape the waste water or the degradation agent remained on the inner wall of the casing 101, thereby avoiding that the waste water or the degradation agent remained on the inner wall of the casing 101 is easy to affect the reuse of the casing 101.
The supporting seat 103 is fixedly installed on the upper surface of the box 101, the rotating block 104 is used for rotating the guide rail 105, the guide rail 105 is located on one side, far away from the supporting seat 103, of the rotating block 104, the sliding block 106 is slidably connected with the guide rail 105 and located on one side, far away from the rotating block 104, of the guide rail 105, the movable rod 107 is fixedly installed on one side, far away from the guide rail 105, of the sliding block 106, the stirring blade 108 is used for stirring and mixing waste water and degradation agents in the box 101, the scraping blade 109 is located on one side, close to the box 101, of the stirring blade 108, a vertical sliding groove is formed in the guide rail 105, the sliding block 106 is matched with the vertical sliding groove of the guide rail 105, so that the sliding block 106 can vertically slide in the vertical sliding groove of the guide rail 105, and further limit the movable rod 107, only can move up and down in the rotating rod 114, the rotating block 104 is driven, and the stirring blade 108 is driven to rotate in the box 101, and the scraping blade 109 is driven to rotate in the box 101.
The control motor 113 is fixedly installed on the lower surface of the supporting seat 103, the rotating rod 114 is connected with the output end of the control motor 113 and is fixedly installed on one side of the guide rail 105 far away from the sliding block 106, and the output end of the control motor 113 is connected with the rotating rod 114 and drives the rotating rod 114 to rotate, so that the guide rail 105 is driven to rotate.
And the rotating plate 116 is rotatably connected with the blade body 115 and positioned on the lower surface of the blade body 115, and drives the blade body 115 to transversely rotate through the rotation of the movable rod 107, so as to drive the rotating plate 116 to transversely rotate below the blade body 115, and the rotating plate 116 is rotatably connected with the blade body 115, so that the rotating plate 116 can vertically rotate below the blade body 115.
In addition, the hydraulic cylinder 110 is fixedly mounted on the lower surface of the supporting seat 103, the telescopic rod 111 is connected with the output end of the hydraulic cylinder 110 and is positioned on the lower surface of the hydraulic cylinder 110, and the output end of the hydraulic cylinder 110 is connected with the telescopic rod 111 and drives the telescopic rod 111 to extend and retract.
Finally, the fixing plate 112 is fixedly installed at the lower end of the telescopic rod 111, and is fixedly installed at the outer side of the movable rod 107, and drives the fixing plate 112 to move up and down through the telescopic action of the telescopic rod 111, so as to drive the movable rod 107 to move up and down in the rotating rod 114.
When the device for deeply treating organic matters in preserved fruit processing waste water in the embodiment is used, the control motor 113 is started, so that the power output by the output end of the control motor 113 drives the rotating rod 114 to rotate, thereby driving the guide rail 105 to rotate, further driving the sliding block 106 to rotate, driving the movable rod 107 to rotate through the rotation of the sliding block 106, thereby driving the blade body 115 to rotate, further driving the scraping plate 109 to rotate, and driving the scraping plate 109 to rotate in the box 101, thereby enabling the scraping plate 109 to scrape waste water or degradation agent remained on the inner wall of the box 101, driving the rotating plate 116 to transversely rotate, simultaneously enabling the rotating plate 116 to vertically rotate below the blade body 115, thereby enabling the rotating plate 116 to turn waste water or degradation agent at the bottom of the box 101 to be stacked at the bottom of the box 101, then starting the blade body 110, enabling the output end of the scraping plate 109 to drive the output end of the hydraulic rod 110 to move, thereby enabling the sliding rod 110 to move in the box 109 to move, and further enabling the sliding rod 114 to move in the box 101 to move, thereby enabling the sliding rod 114 to move in the box 109 to move, and further enabling the sliding rod 114 to move in the box 107 to move through the sliding groove 107, therefore, the scraping plate 109 can scrape the waste water or the degradation agent remained at different heights on the inner wall of the box 101, so that the influence of the waste water or the degradation agent remained on the inner wall of the box 101 on the reuse of the box 101 is avoided.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims of this invention, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the invention disclosed herein.
Claims (3)
1. The deep treatment method of the organic matters in the preserved fruit processing wastewater is characterized by comprising the following steps of:
homogenizing the preserved fruit wastewater with different organic matter concentrations produced in each procedure in an adjusting tank, and adopting a perforated pipe for aeration stirring;
The homogenized preserved fruit wastewater enters an acid-resistant bacteria degradation tank, and acid-resistant bacteria complete removal of most organic matters under an acidic condition;
intercepting biomembrane sludge formed by acid-resistant bacteria in a sedimentation tank, and simultaneously conveying part of sludge back to the acid-resistant bacteria degradation tank;
Carrying out first-stage Fenton oxidation in a Fenton oxidation tank, wherein the pH value of the effluent of the sedimentation tank is not required to be adjusted by adding acid;
The acid-resistant bacteria degradation pool removes intermediate products of the first-stage Fenton oxidation under an acid condition through acid-resistant microorganisms;
then carrying out second-stage Fenton oxidation in the Fenton oxidation tank, wherein the pH value of the inlet water is not required to be adjusted by adding acid, and the pH value of the outlet water is adjusted to 7.5-8.5 by adding alkali;
Intercepting iron mud formed after alkali is added into effluent of a Fenton oxidation pond in a sedimentation pond;
Deeply purifying the effluent of the second-stage Fenton oxidation in the biological filter tank, and simultaneously removing residual hydrogen peroxide to eliminate hydrogen peroxide interference of water sample COD detection;
The Fenton oxidation uses hydrogen peroxide and ferrous sulfate, and the acid condition of the inlet water is utilized, so that the inlet water does not need to be acidified by adding acid.
2. The method for deeply treating organic matters in Chinese herbal medicine processing wastewater according to claim 1, wherein the acid-fast bacteria degradation tank adopts a three-dimensional elastic filler as a biological membrane carrier.
3. The method for deeply treating organic matters in cold fruit processing wastewater according to claim 1, wherein the biological filter uses granular activated carbon as a filler to inoculate common activated sludge in municipal sewage treatment plants.
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| CN206666326U (en) * | 2017-03-03 | 2017-11-24 | 广东智环创新环境科技有限公司 | A kind of fruit jelly production wastewater treatment device |
| CN110396479A (en) * | 2019-08-02 | 2019-11-01 | 自然资源部第三海洋研究所 | One acidproof flora and its application for handling Fenton acidic effluent |
| CN113428952A (en) * | 2021-06-02 | 2021-09-24 | 黄午阳 | Papermaking wastewater treatment process |
| CN113735392A (en) * | 2021-10-08 | 2021-12-03 | 自然资源部第三海洋研究所 | Method for treating preserved fruit processing wastewater |
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| CN105712572A (en) * | 2015-12-04 | 2016-06-29 | 韩山师范学院 | Method for treating preserved fruit wastewater on basis of membrane integration technologies |
| CN215842547U (en) * | 2021-07-20 | 2022-02-18 | 昆山建工环境投资有限公司 | Medicine adding device with efficient stirring mechanism |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206666326U (en) * | 2017-03-03 | 2017-11-24 | 广东智环创新环境科技有限公司 | A kind of fruit jelly production wastewater treatment device |
| CN110396479A (en) * | 2019-08-02 | 2019-11-01 | 自然资源部第三海洋研究所 | One acidproof flora and its application for handling Fenton acidic effluent |
| CN113428952A (en) * | 2021-06-02 | 2021-09-24 | 黄午阳 | Papermaking wastewater treatment process |
| CN113735392A (en) * | 2021-10-08 | 2021-12-03 | 自然资源部第三海洋研究所 | Method for treating preserved fruit processing wastewater |
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