CN203922951U - A kind of fluorine-contained wastewater treatment system - Google Patents

A kind of fluorine-contained wastewater treatment system Download PDF

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Publication number
CN203922951U
CN203922951U CN201420356507.6U CN201420356507U CN203922951U CN 203922951 U CN203922951 U CN 203922951U CN 201420356507 U CN201420356507 U CN 201420356507U CN 203922951 U CN203922951 U CN 203922951U
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China
Prior art keywords
order reaction
pond
fluorine
wastewater treatment
treatment system
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Expired - Fee Related
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CN201420356507.6U
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Chinese (zh)
Inventor
王华春
吴会莲
熊冰
钟小英
李德尹
丘红莉
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Guangdong Meiyan Jixiang Hydropower Co Ltd
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Guangdong Meiyan Jixiang Hydropower Co Ltd
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Priority to CN201420356507.6U priority Critical patent/CN203922951U/en
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Abstract

The utility model discloses a kind of fluorine-contained wastewater treatment system, comprise successively the adjusting the connecting accident pool of holding concurrently, first order reaction pond, one-level settling tank, second order reaction pond, second-level settling pond, immobilization biological creeping bed, vertical sedimentation tank, intermediate pool, strainer, activated alumina filter and clean water basin, described adjusting is held concurrently and is provided with lift pump between accident pool and first order reaction pond, between described intermediate pool and strainer, be provided with force (forcing) pump, described first order reaction is added carbide slag in pond, described activated alumina filter adopts modified coal ash to make weighting material, described activated alumina filter is connected with regenerating unit, described one-level settling tank, second-level settling pond, the mud that immobilization biological creeping bed and vertical sedimentation tank produce gathers to sludge sump and transports after sludge dewatering equipment dehydration, and the utility model adopts PLC closed loop measurement and control and PID to regulate, and adopts precipitation, flocculation and biomembrance process combine, and adopt carbide slag, modified coal ash removes fluorine, the treatment of wastes with processes of wastes against one another, efficiently, cost is low.

Description

A kind of fluorine-contained wastewater treatment system
Technical field
The utility model relates to a kind of Sewage treatment systems, specifically a kind of fluorine-contained wastewater treatment system.
Background technology
For fluoride waste, generally adopt calcium salt precipitation method, to feeding lime in waste water, make fluorion and calcium ion generate CaF2 precipitation and remove.This technique have method simple, process the advantages such as convenient, expense is low, but exist process after water outlet be difficult to up to standard, body refuse sedimentation slowly and the shortcoming such as dehydration difficulty.Process at present fluoride waste and have following several method: chemical precipitation method can be processed the fluoride waste of high density, when fluorion starting point concentration is 1000~3000mg/L, lime method ultimate density after treatment can reach 20~30mg/L, and this method is easy and simple to handle, and processing costs is low.But because body refuse settling velocity is slow, need to add calcium chloride or other flocculation agent, precipitation is accelerated.Flocculent precipitation is poor to various amounts of fluoride in drinking water defluorination effect, and after processing, in water, sulfate concentration is higher.Absorption method is only applicable to the drinking water deep processing that the water yield is less, the large anionresin effects that play of sorbent material more, and therefore defluorination effect is fairly obvious, but all will add special treatment agent and particular device is set, and processing costs is often higher than the precipitator method, and complicated operation.
Utility model content
The purpose of this utility model is to provide the fluorine-contained wastewater treatment system that a kind of level of automation is high, utilize carbide slag, modified coal ash also to fully utilize biomembrance process to remove fluorion simultaneously, to solve the problem proposing in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of fluorine-contained wastewater treatment system, comprise successively the adjusting the connecting accident pool of holding concurrently, first order reaction pond, one-level settling tank, second order reaction pond, second-level settling pond, immobilization biological creeping bed, vertical sedimentation tank, intermediate pool, strainer, activated alumina filter and clean water basin, described adjusting is held concurrently and is provided with lift pump between accident pool and first order reaction pond, between described intermediate pool and strainer, be provided with force (forcing) pump, described first order reaction is added carbide slag in pond, described second order reaction regulates sewage pH in pond, add PAC by dosing pump, PAM, described activated alumina filter adopts modified coal ash to make weighting material, described activated alumina filter is connected with regenerating unit, described one-level settling tank, second-level settling pond, the mud that immobilization biological creeping bed and vertical sedimentation tank produce drains into sludge sump through sewage draining exit, after sludge dewatering equipment dehydration, transport again, the PLC observing and controlling of the utility model whole process using and PID regulate.
As further program of the utility model: described sludge dewatering equipment is connected with pump well, the sewage that enters pump well is again sent into and is regulated the accident pool of holding concurrently through water pump.
As further scheme of the utility model: the described adjusting accident pool of holding concurrently is provided with the fluid level controller of acid and alkali-resistance.
As further scheme of the utility model: described second order reaction pond is divided into intermediate pool and two parts of coagulation reaction tank.
As further scheme of the utility model: have additional swash plate in described vertical sedimentation tank.
As further scheme of the utility model: described intermediate pool adopts skeleton construction, water pump in the middle of inside establishing.
Compared with prior art, the beneficial effects of the utility model are: the utility model passes through the precipitator method, the comprehensive utilization of absorption method and biomembrance process reaches the fluorion of removing in waste water, adopt carbide slag slurries to replace milk of lime defluorination of the prior art, processing power is large, technique is simple, and raw material is easy to get, processing cost is low, reach the object of the treatment of wastes with processes of wastes against one another, but because carbide slag cannot be processed other impurity in waste water, therefore continue to adopt the COD content in biomembrance process degrading waste water, the utility model adopts PLC observing and controlling and PID to regulate and can precisely control the each process of wastewater treatment in addition, level of automation is high.
Brief description of the drawings
Fig. 1 is fundamental diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of fluorine-contained wastewater treatment system, comprise successively the adjusting the connecting accident pool 1 of holding concurrently, first order reaction pond 2, one-level settling tank 3, second order reaction pond 4, second-level settling pond 5, immobilization biological creeping bed 6, vertical sedimentation tank 7, intermediate pool 8, strainer 9, activated alumina filter 10 and clean water basin 11, the described adjusting accident pool 1 of holding concurrently is provided with the fluid level controller of acid and alkali-resistance, described adjusting is held concurrently and is provided with lift pump between accident pool 1 and first order reaction pond 2, between described intermediate pool 8 and strainer 9, be provided with force (forcing) pump, in described first order reaction pond 2, add carbide slag, in described second order reaction pond 4, regulate sewage pH, add PAC by dosing pump, PAM, described second order reaction pond 4 is divided into intermediate pool and two parts of coagulation reaction tank, in described vertical sedimentation tank 7, have additional swash plate, described intermediate pool 8 adopts skeleton construction, water pump in the middle of inside establishing.Described activated alumina filter 10 adopts modified coal ash to make weighting material, described activated alumina filter 10 is connected with regenerating unit 14, the mud that described one-level settling tank 3, second-level settling pond 5, immobilization biological creeping bed 6 and vertical sedimentation tank 7 produce drains into sludge sump 12 through sewage draining exit, after sludge dewatering equipment 13 dehydrations, transport again, the PLC observing and controlling of the utility model whole process using and PID regulate, described sludge dewatering equipment 13 is connected with pump well 15, and the sewage that enters pump well 15 is again sent into and regulated the accident pool 1 of holding concurrently through water pump.
Principle of work of the present utility model is: because carbide slag main component is Ca (OH) 2, the reaction mechanism that substitutes traditional milk of lime processing fluoride waste with carbide slag is:
Ca(OH) 2+2H ++2F -=CaF 2↓+2H 2O
Because carbide slag cannot be processed other impurity in fluoride waste, adopt the COD content in biomembrance process degrading waste water therefore set up immobilization biological creeping bed 6 in the utility model.
Flyash is the main solid waste that coal-burning power plant discharges, and its main component is silicon-dioxide, aluminum oxide, ferric oxide etc., and the activated alumina in modified coal ash has very strong removal ability and selectivity to fluorine.
Fluoride waste first enters to regulate the accident pool 1 of holding concurrently, by lift pump by sewage lifting to the Ca (OH) in first order reaction pond 2 and carbide slag 2reaction, generates CaF 2indissoluble thing, sewage self-flowing is to one-level settling tank 3, precipitate most of indissoluble material, supernatant liquor gravity flow enters second order reaction pond 4, through overregulating the pH of waste water, dosing pump adds PAC in sewage, PAM, under proper acidity or alkalinity condition, there is throwing out, sewage flows into second-level settling pond 5 through gravity flow effect, by the flocculate precipitate precipitation forming, sewage continuation gravity flow enters immobilization biological creeping bed 6 and carries out biochemical reaction, adopt biomembrance process effectively to remove the COD in sewage, sewage flow to intermediate pool 8 through vertical sedimentation tank 7 again, force (forcing) pump filters sewage lifting to strainer 9, the filtration of passing through again the activated alumina filter 10 that is filled with flyash makes the fluorion in sewage reach emission standard, discharge through clean water basin 11, one-level settling tank 3, second-level settling pond 5, the mud that immobilization biological creeping bed 6 and vertical sedimentation tank 7 produce drains into sludge sump 12 through sewage draining exit, after sludge dewatering equipment 13 dehydrations, transport again, the PLC observing and controlling of the utility model whole process using and PID regulate, described sludge dewatering equipment 13 is connected with pump well 15, the sewage that enters pump well 15 is again sent into and is regulated the accident pool 1 of holding concurrently through water pump, .
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other specific form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, is therefore intended to all changes that drop in the implication and the scope that are equal to important document of claim to include in the utility model.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should make specification sheets as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.

Claims (6)

1. a fluorine-contained wastewater treatment system, comprises successively the adjusting the connecting accident pool (1) of holding concurrently, first order reaction pond (2), one-level settling tank (3), second order reaction pond (4), second-level settling pond (5), immobilization biological creeping bed (6), vertical sedimentation tank (7), intermediate pool (8), strainer (9), activated alumina filter (10) and clean water basin (11), it is characterized in that: described adjusting is held concurrently and is provided with lift pump between accident pool (1) and first order reaction pond (2), between described intermediate pool (8) and strainer (9), be provided with force (forcing) pump, in described first order reaction pond (2), add carbide slag, in described second order reaction pond (4), regulate sewage pH, add PAC by dosing pump, PAM, described activated alumina filter (10) adopts modified coal ash to make weighting material, and described activated alumina filter (10) is connected with regenerating unit (14), described one-level settling tank (3), second-level settling pond (5), the mud that immobilization biological creeping bed (6) and vertical sedimentation tank (7) produce drains into sludge sump (12) through sewage draining exit, then transports after sludge dewatering equipment (13) dehydration, and the PLC observing and controlling of the utility model whole process using and PID regulate.
2. fluorine-contained wastewater treatment system according to claim 1, is characterized in that, described sludge dewatering equipment (13) is connected with pump well (15), and the sewage that enters pump well (15) is again sent into and regulated the accident pool (1) of holding concurrently through water pump.
3. fluorine-contained wastewater treatment system according to claim 1, is characterized in that, the described adjusting accident pool (1) of holding concurrently is provided with the fluid level controller of acid and alkali-resistance.
4. fluorine-contained wastewater treatment system according to claim 1, is characterized in that, described second order reaction pond (4) is divided into intermediate pool and two parts of coagulation reaction tank.
5. fluorine-contained wastewater treatment system according to claim 1, is characterized in that, described vertical sedimentation tank has additional swash plate in (7).
6. fluorine-contained wastewater treatment system according to claim 1, is characterized in that, described intermediate pool (8) adopts skeleton construction, water pump in the middle of inside establishing.
CN201420356507.6U 2014-07-01 2014-07-01 A kind of fluorine-contained wastewater treatment system Expired - Fee Related CN203922951U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106145441A (en) * 2016-07-26 2016-11-23 江苏圣富利环境工程有限公司 A kind of fluorine-contained wastewater treatment system
CN107522276A (en) * 2017-09-22 2017-12-29 长江师范学院 A kind of preparation method of removing fluorine from water agent
CN107879541A (en) * 2017-11-25 2018-04-06 昆明有色冶金设计研究院股份公司 A kind of method using the fluorine-containing early-stage rainwater of magnetic flocculation adsorption treatment
CN109607868A (en) * 2018-12-29 2019-04-12 河南龙宇煤化工有限公司 A kind of advanced treatment system and its deep treatment method of low concentration fluoride waste

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106145441A (en) * 2016-07-26 2016-11-23 江苏圣富利环境工程有限公司 A kind of fluorine-contained wastewater treatment system
CN107522276A (en) * 2017-09-22 2017-12-29 长江师范学院 A kind of preparation method of removing fluorine from water agent
CN107522276B (en) * 2017-09-22 2020-04-07 长江师范学院 Preparation method of water defluorinating agent
CN107879541A (en) * 2017-11-25 2018-04-06 昆明有色冶金设计研究院股份公司 A kind of method using the fluorine-containing early-stage rainwater of magnetic flocculation adsorption treatment
CN109607868A (en) * 2018-12-29 2019-04-12 河南龙宇煤化工有限公司 A kind of advanced treatment system and its deep treatment method of low concentration fluoride waste
CN109607868B (en) * 2018-12-29 2022-02-08 河南龙宇煤化工有限公司 Advanced treatment system and advanced treatment method for low-concentration fluorine-containing wastewater

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Granted publication date: 20141105

Termination date: 20160701