CN220335012U - River emergency treatment system - Google Patents
River emergency treatment system Download PDFInfo
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- CN220335012U CN220335012U CN202321933870.5U CN202321933870U CN220335012U CN 220335012 U CN220335012 U CN 220335012U CN 202321933870 U CN202321933870 U CN 202321933870U CN 220335012 U CN220335012 U CN 220335012U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 111
- 239000010802 sludge Substances 0.000 claims abstract description 80
- 238000005189 flocculation Methods 0.000 claims abstract description 53
- 230000016615 flocculation Effects 0.000 claims abstract description 53
- 239000004744 fabric Substances 0.000 claims abstract description 44
- 238000001556 precipitation Methods 0.000 claims abstract description 38
- 239000006247 magnetic powder Substances 0.000 claims abstract description 35
- 239000004576 sand Substances 0.000 claims abstract description 32
- 238000004062 sedimentation Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000011344 liquid material Substances 0.000 claims abstract description 9
- 239000011343 solid material Substances 0.000 claims abstract description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 31
- 230000003197 catalytic effect Effects 0.000 claims description 25
- 238000007254 oxidation reaction Methods 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 24
- 230000003647 oxidation Effects 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 19
- 239000006148 magnetic separator Substances 0.000 claims description 13
- 238000010008 shearing Methods 0.000 claims description 10
- 239000000701 coagulant Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 4
- 239000006228 supernatant Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 239000003344 environmental pollutant Substances 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- -1 and meanwhile Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229940037003 alum Drugs 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model relates to the technical field of sewage treatment, in particular to a river emergency treatment system. River water to be purified is discharged into a river channel after being treated by a cyclone sand setting tank, a flocculation precipitation unit and a filter cloth filter tank in sequence; the solid-liquid mixture at the bottom of the flocculation precipitation unit and the cloth filter is concentrated by a sludge concentration tank, and then the solid material is transported outwards, and the liquid material is output to a rotational flow sand sedimentation tank; the flocculation precipitation unit is provided with a magnetic powder feeding device, the first water quality on-line monitor and the second water quality on-line monitor detect water quality signals in real time and transmit the water quality signals to the PLC, and the PLC controls the corresponding executing mechanism to carry out subsequent treatment according to whether the water quality data exceeds the standard. The utility model solves the technical problems of untimely treatment, easy secondary pollution to the receiving water body and the like of the prior equipment, and has the advantages of real-time control of the operation of the treatment device according to whether the water quality data exceeds the standard, difficult secondary pollution formation and the like.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a river emergency treatment system.
Background
In recent years, the water system treatment construction is continuously optimized in China, the standard requirement of each place on the water quality of the river channel is improved, the water ecological environment treatment achieves a staged target, the living environment and the landscape along the coast are improved by the national water system treatment construction, and the water quality of the river channel is improved. However, when the river water meets emergency conditions, the river section cannot stably reach the standard, for example, the water quantity in the flood season suddenly increases, or the polluted water is accidentally discharged into the river, so that the river water quality in a certain range cannot reach the standard, and in the emergency disposal condition of the river above, the water quantity of the river is usually large and cannot be timely treated through the existing in-situ device or ecological device; secondly, the time from the entering of the polluted area flow to the downstream critical surface (the drinking water source area, the outlet increasing section and the river entering sea section) is only a few days or even shorter, in order to reduce the influence range of the polluted area flow and shorten the emergency disposal time, the pollutant is usually removed by adopting a physical and chemical treatment technology which takes effect in a short time, and the pollutant is precipitated or adsorbed by adding materials such as water treatment agents, activated carbon and the like.
The background documents retrieved by the applicant include:
the patent document with publication number CN115124160A discloses a river water bypass purification treatment process, which adopts the main technical scheme that a 'reinforced coagulation + filter cloth filter tank', wherein the cyclone separation system in the prior art integrates a plurality of functions of water treatment agent mixing, river water sand setting, sand-water separation and the like, can reduce the subsequent flocculation precipitation and the deep filtration treatment load of the filter cloth filter tank, and shortens the sewage treatment time; the combined process flow is short, the number of accessory equipment is small, and the occupied area can be effectively saved by reasonable arrangement. However, the following problems exist: firstly, removing pollutants such as organic matters, ammonia nitrogen, total phosphorus and the like by utilizing the oxidation-reduction effect of a composite medicament, and causing secondary pollution to a receiving water body; secondly, no water quality on-line monitoring equipment is arranged, the water quality cannot be monitored on line in real time, and the treatment time has time delay.
The applicant has not retrieved documents in the domestic patent database that are identical or similar to the present application.
Disclosure of Invention
The utility model aims to provide a river emergency treatment system, which adopts the technical measures of arranging an on-line monitor to monitor water quality, arranging a magnetic powder adding device in a flocculation precipitation unit and the like, reduces operation cost and strengthens the adsorption treatment effect on pollutants.
The utility model has the following overall technical concept:
the river emergency treatment system is used for sequentially treating river water to be purified through a rotational flow sand setting tank, a flocculation precipitation unit and a filter cloth filter tank and then discharging the river water to the river; the solid-liquid mixture at the bottom of the flocculation precipitation unit and the cloth filter is concentrated by a sludge concentration tank, and then the solid material is transported outwards, and the liquid material is output to a rotational flow sand sedimentation tank; wherein:
A. the detection signal input end of the first water quality on-line monitor is connected with river water to be purified, the river water to be purified is communicated with the cyclone sand setting tank through a lifting pump and a pipeline, and the control ends of the first water quality on-line monitor and the lifting pump are electrically connected with the PLC;
B. the flocculation precipitation unit comprises a magnetic powder feeding device, a coagulant feeding device and a flocculant feeding device, wherein the magnetic powder feeding device, the coagulant feeding device and the flocculant feeding device are communicated with the material output end of the flocculation precipitation unit, the liquid material of the flocculation precipitation unit is output in two paths in total, one path is discharged to a river channel after the water quality is detected to be qualified by the second water quality on-line monitor, and the other path is output to the filter cloth filter after the water quality is detected to be unqualified by the second water quality on-line monitor; outputting the solid-liquid mixture generated at the bottom of the flocculation precipitation unit to a magnetic powder recovery device;
C. the output end of the filter cloth filter tank is connected with an ozone catalytic oxidation device, and the effluent of the ozone catalytic oxidation device is discharged to a river channel.
The specific technical conception of the utility model comprises:
the main function of the flocculation precipitation unit is to effectively remove colloid, flocculate, adsorbed organic matters and nitrogen and phosphorus, and in order to bring the flocculation reaction effect into full play, the preferred technical implementation means is that the flocculation precipitation unit comprises a mixing tank, a flocculation tank and an inclined plate precipitation area which are communicated sequentially through a water passing port according to the material conveying direction, the material output of the magnetic powder feeding device and the material output of the coagulant feeding device are connected with the mixing tank, and the material output of the flocculant feeding device is connected with the flocculation tank.
In order to facilitate the mixing effect of the magnetic powder, the flocculant, the coagulant and the reaction system, the preferable technical implementation means is that a mixing stirrer is arranged in a mixing tank, and a flocculation stirrer is arranged in a flocculation tank.
In order to facilitate the sedimentation of most suspended solids, reduce the processing load of the inclined plate sedimentation zone and promote the operation effect of the system, the preferred technical implementation mode is that the operation effect flocculation tank is communicated with the inclined plate sedimentation zone through a pre-sedimentation zone.
The main function of the second water quality on-line monitor is to monitor the water quality of the effluent in real time, so as to control the subsequent treatment or discharge according to the water quality detection data, so as to reduce the running cost and improve the treatment efficiency; and outputting the solid-liquid mixture at the bottom of the inclined plate sedimentation zone to a magnetic powder recovery device.
The magnetic powder recycling device is mainly used for recycling magnetic powder in sludge discharged by the flocculation precipitation unit, the magnetic powder utilization rate is improved, the system treatment cost is reduced, and the preferable technical implementation means is that the magnetic powder recycling device comprises a magnetic sludge pump, a high shearing machine and a magnetic separator, a solid-liquid mixture at the bottom of a sloping plate precipitation area is conveyed to the high shearing machine through the magnetic sludge pump, materials of the high shearing machine are output to the magnetic separator for recycling magnetic powder, and sludge separated by the magnetic separator is discharged to a sludge concentration tank for sludge concentration.
In order to facilitate the reuse of the magnetic powder, the magnetic powder separated by the magnetic separator is output to the mixing tank.
The main function of the ozone catalytic oxidation device is that the inlet water passes through a catalyst and is subjected to catalytic oxidation reaction under the action of ozone to remove pollutants such as organic matters, ammonia nitrogen, total phosphorus and the like.
The sludge concentration device has the main function of carrying out decrement concentration on sludge in a sludge concentration tank, and the preferable technical implementation mode is that materials of the sludge concentration tank are output to a sludge compression device, the sludge compression device comprises a sludge screw pump, a plate-and-frame filter press and a sludge conveyor belt, the sludge is pumped to the plate-and-frame filter press through the sludge screw pump, and the plate-and-frame filter press is connected with the sludge conveyor belt; and the supernatant output of the sludge concentration tank and the bottom of the plate-and-frame filter press are respectively connected with a rotational flow sand setting tank through a pipeline and an intermediate tank.
The applicant needs to say that:
because the equipment such as the cyclone sand basin, the sand-water separator, the filter cloth filter tank and the like in the utility model belong to the prior art and are commercially available, the applicant does not need to describe the structure of the equipment.
In the description of the present utility model, the orientation or positional relationship indicated by the terms "input", "output", "bottom", "top", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of simplifying the description of the present utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. The terms "first," "second," and "second" are used merely to describe differences and are not to be construed as implying importance.
The technical progress of the utility model is that:
1. according to the utility model, the water quality on-line monitor is arranged, so that the water quality data can be monitored in real time, the monitoring data is fed back to the PLC, the corresponding executing mechanism is controlled according to whether the water quality exceeds the standard, the running cost can be effectively reduced, the river sewage can be treated in time, and the treatment efficiency is improved.
2. The magnetic powder adding device is arranged in the flocculation precipitation unit, so that the number of suspended matters in a system can be increased, and the effective collision probability of the suspended matters is improved; secondly, the magnetic powder has larger magnetic attraction and specific surface area, strengthens the adsorption of pollutants, generates initial alum blossom taking the magnetic powder as a core, has higher flocculation sedimentation speed than the traditional method and has better flocculation treatment effect.
3. According to the utility model, whether the water enters the advanced treatment device or not can be selected according to the water quality condition, and if the water quality of the effluent after being treated by the flocculation precipitation unit reaches the standard, the water is directly discharged into a river channel, so that the running cost is reduced; if the standard is exceeded, the subsequent treatment can be carried out, organic matters, ammonia nitrogen, solid suspended matters and the like can be effectively removed, the treatment technology is filter cloth microporous filtration and ozone catalytic oxidation, ozone and catalysts can be recycled, and the treated river water can not cause secondary pollution of the receiving water body.
Drawings
Fig. 1 is a schematic view of the overall structure of the present utility model.
Fig. 2 is a schematic structural view of the cyclone grit chamber.
FIG. 3 is a schematic diagram of the structure of a flocculation precipitation unit.
FIG. 4 is a schematic diagram of a filter cloth filter.
Fig. 5 is a schematic structural view of an ozone catalytic oxidation unit.
Fig. 6 is a schematic structural view of the sludge compression apparatus.
Fig. 7 is a schematic structural view of the magnetic powder recovery apparatus.
Reference numerals in the drawings are as follows:
1. upstream of the river course; 2. a first water quality on-line monitor; 3. a lift pump; 4. a cyclone sand setting tank; 4A, a central shaft; 4B, a driving device; 4C, stirring paddles; 4D, a sand discharge pipe; 4E, a sand discharge pump; 5. a flocculation precipitation unit; 5A, a mixing pool; 5B, a flocculation tank; 5C, a pre-sedimentation zone; 5D, sloping plate sedimentation zone; 5E, a mixing stirrer, 5F and a flocculation stirrer; 5G, a central transmission mud scraper; 5H, a magnetic powder adding device; 5I, coagulant adding device; 5J, a flocculating agent adding device; 6. a second water quality on-line monitor; 7. a filter cloth filter tank; 7A, a filter cloth filter disc; 7B, a hollow water outlet shaft; 7C, a water outlet area; 7D, a transmission device; 7E, back suction pump; 7F, a mud pipe; 7G, a sludge pump; 8. an ozone catalytic oxidation device, an 8A ozone generator, an 8B ozone catalytic oxidation reactor; 8C, a circulating fan; 9. a PLC controller; 10. a sludge concentration tank; 11. a sludge compression device; 11A, a sludge screw pump; 11B, a plate-and-frame filter press; 11C, a sludge conveyor belt; 12. an intermediate pool; 13. submersible pump; 14. a sand-water separator; 15. a magnetic powder recovery device; 15A, magnetic sludge pump; 15B, high shearing machine; 15C, a magnetic separator.
Detailed Description
Embodiments of the present utility model will be further described below with reference to the accompanying drawings, which are not intended to limit the utility model. The protection scope of the present utility model is subject to the contents of the claims, and any equivalent technical means made according to the specification are replaced without departing from the protection scope of the present utility model.
Examples
The whole structure of the embodiment is shown in the figure, and river water to be purified is discharged into a river after being treated by the cyclone sand basin 4, the flocculation precipitation unit 5 and the filter cloth filter 7 in sequence; the solid-liquid mixture at the bottoms of the flocculation precipitation unit 5 and the cloth filter 7 is concentrated by a sludge concentration tank 10 and then the solid material is transported outwards, and the liquid material is output to a rotational flow sand basin 4; wherein:
the detection signal input end of the first water quality on-line monitor 2 is connected with river water to be purified, the river water to be purified is communicated with the cyclone sand basin 4 through the lifting pump 3 and a pipeline, and the control ends of the first water quality on-line monitor 2 and the lifting pump 3 are electrically connected with the PLC 9;
the concrete structure of the flocculation precipitation unit 5 is shown in fig. 3, the flocculation precipitation unit 5 comprises a mixing tank 5A, a flocculation tank 5B, a pre-sedimentation zone 5C and an inclined plate precipitation zone 5D which are communicated sequentially through a water passing port according to the material conveying direction, a magnetic powder feeding device 5H and a material output of a coagulant feeding device 5I are connected with the mixing tank 5A, a material output of a flocculant feeding device 5J is connected with the flocculation tank 5B, a mixing stirrer 5E is arranged in the mixing tank 5A, and a flocculation stirrer 5F is arranged in the flocculation tank 5B; the liquid material in the inclined plate sedimentation zone 5D is output in two paths, wherein one path is discharged to a river channel after the water quality is detected to be qualified by the second water quality on-line monitor 6, and the other path is output to the cloth filter 7 after the water quality is detected to be unqualified by the second water quality on-line monitor 6; the solid-liquid mixture at the bottom of the inclined plate sedimentation zone 5D is output to a magnetic powder recovery device 15;
the output end of the filter cloth filter 7 is connected with an ozone catalytic oxidation device 8, and the effluent of the ozone catalytic oxidation device 8 is discharged to a river channel.
The magnetic powder recovery device 15 comprises a magnetic sludge pump 15A, a high shearing machine 15B and a magnetic separator 15C, and the specific structure is shown in FIG. 7. The solid-liquid mixture at the bottom of the inclined plate sedimentation zone 5D is conveyed to the high shearing machine 15B through the magnetic sludge pump 15A, the material of the high shearing machine 15B is output to the magnetic separator 15C to recover magnetic powder, the sludge separated by the magnetic separator 15C is discharged to the sludge concentration tank 10 for sludge concentration, and the magnetic powder separated by the magnetic separator 15C is output to the mixing tank 5A.
The ozone catalytic oxidation device 8 comprises an ozone generator 8A, an ozone catalytic oxidation reactor 8B and a circulating fan 8C, the specific structure is shown in figure 5, the material output ends of the ozone generator 8A and the circulating fan 8C are respectively communicated with the bottom of the ozone catalytic oxidation reactor 8B, the material input end of the circulating fan 8C is communicated with the top of the ozone catalytic oxidation reactor 8B, and the effluent of the ozone catalytic oxidation reactor 8B is discharged to a river channel.
The materials in the sludge concentration tank 10 are output to a sludge compression device 11, and the sludge compression device 11 comprises a sludge screw pump 11A, a plate-and-frame filter press 11B and a sludge conveying belt 11C, and the concrete structure is shown in figure 6. The sludge is pumped to a plate-and-frame filter press 11B through a sludge screw pump 11A, and the plate-and-frame filter press 11B is connected with a sludge conveying belt 11C; the supernatant output of the sludge concentration tank 10 and the bottom of the plate-and-frame filter press 11B are respectively connected with the cyclone sand basin 4 through pipelines and an intermediate tank 12.
The cyclone sand sedimentation tank 4 comprises a central shaft 4A, a driving device 4B, stirring paddles 4C, a sand discharge pipe 4D and a sand discharge pump 4E, and the specific structure is shown in figure 2, and the stirring paddles 4C rotate to generate centrifugal force under the driving of the driving device 4B, so that sand grains in water are collected at the bottom of the tank along the slope of the wall and the bottom of the tank, and meanwhile, organic matters adhered on the sand grains are separated. Sand particles settled at the bottom of the tank are transported to the sand-water separator 14 outside the tank through the sand discharge pipe 4D and the sand discharge pump 4E.
The filter cloth filter 7 comprises a filter cloth filter disc 7A, a hollow water outlet shaft 7B, a water outlet area 7C, a transmission device 7D, a reverse suction pump 7E, a sludge discharge pipe 7F and a sludge pump 7G, wherein the specific structure is shown in figure 4, and after water enters the filter cloth filter disc 7A, filtrate enters the hollow water outlet pipe 7B and then flows into the water outlet area 7C. The hollow water outlet shaft 7B has the function of conveying water and driving the filter disc to rotate.
The transmission device 7D comprises a speed reducer, a chain wheel and a chain, and is used for driving one end of the hollow water outlet shaft 7B and the filter cloth filter disc 7A to rotate, and the other end of the hollow water outlet shaft 7B is in rotary fit with the filter cloth filter 7.
The operation state of the cloth filter 7 comprises the processes of static filtration, negative pressure cleaning and mud discharge, wherein:
(1) And in the static filtration process, river water is filtered through filter cloth, filtered liquid is collected through a hollow pipe, gravity flow is discharged out of the filter tank through an overflow groove, and the whole process is continuous.
(2) And in the negative pressure cleaning process, part of sludge is adsorbed on the outer side of the filter cloth during filtering, and a sludge layer is gradually formed. The water level of the filter tank gradually rises along with the increase of the filtration resistance of the accumulated filter cloth of the sludge on the filter cloth. When the liquid level of the filter cloth filter 7 rises to a set backwash liquid level value, the PLC 9 controls the transmission device 7D and the reverse suction pump 7E, the transmission device 7D drives the filter cloth filter discs 7A of the hollow water outlet pipe 7B to slowly rotate, a plurality of filter cloth filter discs 7A are fixed on the hollow water outlet pipe 7B, scrapers on the filter cloth filter discs 7A of the hollow water outlet shaft 7B rub with the surfaces of the filter cloth to scrape sludge on the surfaces of the filter cloth, and meanwhile, water on the filter cloth filter discs 7A is sucked from inside to outside (two filter discs are a group) by the reverse suction pump 7E to clean the sludge in micropores of the filter cloth.
(3) In the sludge discharge process, a sludge discharge pipe 7F is arranged at the bottom of the sludge tank, a sludge discharge pump 7G is automatically started by a PLC (programmable logic controller) 9 to discharge the cleaned sludge after time setting, and the sludge is sent to a sludge concentration tank 10.
The working principle of this embodiment is as follows:
1. when the water quality data of the water body in the upstream 1 of the river channel detected by the first water quality on-line monitor 2 exceeds standard, the water body exceeding standard in the upstream 1 of the river channel is pumped into the cyclone sand basin 4 through the lifting pump 3, the water body tangentially enters the cyclone sand basin 4 through the water inlet, the stirring blade 4C rotates under the driving of the driving device 4B to generate cyclone, sand grains in the water body slide into the bottom of the cyclone sand basin 4 along the wall of the cyclone sand basin 4 under the action of gravity and centrifugal force, sewage overflows from the water outlet and enters the flocculation precipitation unit 5 through the pipeline, the sedimentation process can be accelerated by the added magnetic powder, and colloid, flocculate and adsorbed organic matters and nitrogen and phosphorus can be effectively removed under the combined action of the magnetic powder, the coagulant and the flocculating agent.
2. If the second water quality on-line monitor 6 detects that the effluent of the flocculation precipitation unit 5 reaches the standard, the effluent is directly discharged to a river channel; if the second water quality on-line monitor 6 detects that the effluent of the flocculation precipitation unit 5 exceeds standard, the effluent enters the subsequent treatment, the effluent of the flocculation precipitation unit 5 enters the filter cloth filter 7, solid suspended matters are trapped outside the filter cloth through the filter cloth filter disc 7A, the filtered liquid is discharged out of the filter by an overflow groove of the water outlet area 7C after being collected by the hollow water outlet shaft 7B, the output of the water outlet area 7C is connected with the input end of the ozone catalytic oxidation device 8, the inlet water passes through a catalyst and undergoes catalytic oxidation reaction under the action of ozone, pollutants such as organic matters, ammonia nitrogen, total phosphorus and the like can be removed, and the outlet water of the ozone catalytic oxidation device 8 is discharged to the downstream of a river channel.
3. Sludge generated by the flocculation precipitation unit 5 and the filter cloth filter 7 is discharged to a sludge concentration tank 10, the sludge in the sludge concentration tank 10 is output to a sludge compression device 11, the sludge is lifted to a plate-and-frame filter press 11B by a sludge screw pump 11A, and mud cakes after the filter pressing of the plate-and-frame filter press 11B are transported outwards by a sludge conveyor belt 11C. Supernatant fluid of the sludge concentration tank 10 flows into the middle tank 12, filter pressing liquid of the plate-and-frame filter press 11B flows into the middle tank 12 by gravity, and then a submersible pump 13 at the bottom of the middle tank 12 lifts liquid materials to flow back to the input end of the cyclone grit chamber 4.
Claims (9)
1. The river emergency treatment system is characterized in that river water to be purified is sequentially treated by a rotational flow sand setting tank (4), a flocculation precipitation unit (5) and a filter cloth filter (7) and then discharged into a river; the solid-liquid mixture at the bottoms of the flocculation precipitation unit (5) and the cloth filter (7) is concentrated by a sludge concentration tank (10) and then the solid material is transported outwards, and the liquid material is output to a rotational flow sand sedimentation tank (4); the method is characterized in that:
A. the detection signal input end of the first water quality on-line monitor (2) is connected with river water to be purified, the river water to be purified is communicated with the cyclone sand basin (4) through the lifting pump (3) and a pipeline, and the control ends of the first water quality on-line monitor (2) and the lifting pump (3) are electrically connected with the PLC (9);
B. the flocculation precipitation unit (5) comprises a magnetic powder feeding device (5H), a coagulant feeding device (5I) and a flocculant feeding device (5J) which are communicated with the material output end and the reaction system of the flocculation precipitation unit, wherein the liquid material of the flocculation precipitation unit (5) is output in two paths, one path is discharged to a river channel after the water quality is detected to be qualified by the second water quality on-line monitor (6), and the other path is output to the filter cloth filter (7) after the water quality is detected to be unqualified by the second water quality on-line monitor (6); the solid-liquid mixture generated at the bottom of the flocculation precipitation unit (5) is output to a magnetic powder recovery device (15);
C. the output end of the filter cloth filter (7) is connected with an ozone catalytic oxidation device (8), and the effluent of the ozone catalytic oxidation device (8) is discharged to a river channel.
2. The river emergency treatment system according to claim 1, wherein the flocculation precipitation unit (5) comprises a mixing tank (5A), a flocculation tank (5B) and an inclined plate precipitation area (5D) which are communicated sequentially through a water passing port according to the material conveying direction, the material output of the magnetic powder adding device (5H) and the material output of the coagulant adding device (5I) are connected with the mixing tank (5A), and the material output of the flocculant adding device (5J) is connected with the flocculation tank (5B).
3. The river emergency treatment system according to claim 2, wherein the mixing agitator (5E) is disposed in the mixing tank (5A), and the flocculation agitator (5F) is disposed in the flocculation tank (5B).
4. The river emergency treatment system according to claim 2, wherein the flocculation basin (5B) is communicated with the inclined plate sedimentation zone (5D) through a pre-sedimentation zone (5C).
5. The river emergency treatment system according to any one of claims 2 to 4, wherein the liquid material in the inclined plate sedimentation zone (5D) is output in two paths, one path is discharged to the river after being qualified by the second water quality on-line monitor (6), and the other path is output to the filter cloth filter (7) after being unqualified by the second water quality on-line monitor (6); and outputting the solid-liquid mixture at the bottom of the inclined plate sedimentation zone (5D) to a magnetic powder recovery device (15).
6. The river emergency treatment system according to claim 5, wherein the magnetic powder recovery device (15) comprises a magnetic sludge pump (15A), a high shearing machine (15B) and a magnetic separator (15C), the solid-liquid mixture at the bottom of the inclined plate sedimentation zone (5D) is conveyed to the high shearing machine (15B) through the magnetic sludge pump (15A), the material of the high shearing machine (15B) is output to the magnetic separator (15C) to recover magnetic powder, and the sludge separated by the magnetic separator (15C) is discharged to the sludge concentration tank (10) to concentrate sludge.
7. The river emergency treatment system according to claim 6, wherein the magnetic powder separated by the magnetic separator (15C) is output to the mixing tank (5A).
8. The river emergency treatment system according to claim 1, wherein the ozone catalytic oxidation device (8) comprises an ozone generator (8A), an ozone catalytic oxidation reactor (8B) and a circulating fan (8C), wherein the material output ends of the ozone generator (8A) and the circulating fan (8C) are respectively communicated with the bottom of the ozone catalytic oxidation reactor (8B), the material input end of the circulating fan (8C) is communicated with the top of the ozone catalytic oxidation reactor (8B), and the effluent of the ozone catalytic oxidation reactor (8B) is discharged to the river.
9. The river emergency treatment system according to claim 1 or 6, wherein the materials of the sludge concentration tank (10) are output to a sludge compression device (11), the sludge compression device (11) comprises a sludge screw pump (11A), a plate-and-frame filter press (11B) and a sludge conveyor belt (11C), the sludge is pumped to the plate-and-frame filter press (11B) through the sludge screw pump (11A), and the plate-and-frame filter press (11B) is connected with the sludge conveyor belt (11C); the supernatant output of the sludge concentration tank (10) and the bottom of the plate-and-frame filter press (11B) are respectively connected with the cyclone sand setting tank (4) through pipelines and an intermediate tank (12).
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| CN202321933870.5U CN220335012U (en) | 2023-07-21 | 2023-07-21 | River emergency treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118908499A (en) * | 2024-09-24 | 2024-11-08 | 山东中新环境工程有限公司 | Advanced treatment reclaimed water recycling process for ball-milling cast tube production wastewater |
| CN119430589A (en) * | 2025-01-09 | 2025-02-14 | 海盐县于城丝绸印染股份有限公司 | A wastewater treatment and recycling device for textile printing and dyeing |
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2023
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118908499A (en) * | 2024-09-24 | 2024-11-08 | 山东中新环境工程有限公司 | Advanced treatment reclaimed water recycling process for ball-milling cast tube production wastewater |
| CN119430589A (en) * | 2025-01-09 | 2025-02-14 | 海盐县于城丝绸印染股份有限公司 | A wastewater treatment and recycling device for textile printing and dyeing |
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