CN207362005U - A kind of Zero-discharge coked wastewater treatment system - Google Patents
A kind of Zero-discharge coked wastewater treatment system Download PDFInfo
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- CN207362005U CN207362005U CN201721179535.5U CN201721179535U CN207362005U CN 207362005 U CN207362005 U CN 207362005U CN 201721179535 U CN201721179535 U CN 201721179535U CN 207362005 U CN207362005 U CN 207362005U
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Abstract
The utility model provides a kind of Zero-discharge coked wastewater treatment system, the sewage disposal system formed including the grease removal tank by being sequentially connected, flotation tank, neutralized pond, anaerobic pond, anoxic pond, aerobic tank, sedimentation basin, with with clarifier sludge outlet be connected successively by sludge concentration tank, mud-water separation pond, pressure filtration mechanism into sludge treating system, it is characterised in that：Sedimentation basin outlet of sewer is connected with coagulation reaction tank, sand filter, ozone reactor, desalination pretreatment unit, desalting processing device, strong brine processing unit, strong brine flash distillation plant successively.Using ozone equipment, greatly reduce the generation of sludge, and flash distillation process is carried out to the strong brine that membrane process produces, strong brine is become solid salt, realize Zero-discharge coked wastewater, effectively solve the problems, such as that coking wastewater is difficult, be difficult to realize reuse.
Description
Technical field
A kind of Zero-discharge coked wastewater treatment system is the utility model is related to, belongs to technical field of sewage.
Background technology
Coking wastewater be coal during high-temperature retorting, and formed in gas purification, chemical products subtractive process.It is burnt
Change in waste water pollutant kind is various, complicated component, have benzene class, phenols, sulfide, cyanide, naphthalene, anthracene etc. polycyclic and heterocycle
Aromatic hydrocarbons etc..Coking wastewater is very harmful, and no matter organic or inorganic pollutant mostly belong to poisonous and harmful or carcinogen,
In addition to the composition and classification of other organic matters, so far still in research and discovery.Coking wastewater belongs to poisonous and harmful, difficult degradation height
Concentration organic wastewater, wherein organic matter are in the majority with phenolic compound, account for the half of organic matter, more cyclophanes are further included in organic matter
The heterocyclic compound etc. of fragrant compounds of group and nitrogenous, oxygen, carbon.Inorganic pollution mainly using cyanide, sulfide, rhodanide as
Main, intractability is larger, is always a field of environment protection problem urgently to be resolved hurrily.
What the processing of China's coking wastewater was undergone since the 1950s is from scratch, steps up, progressively sends out
The process of exhibition.50~sixties of 20th century is in the low-level stage, and only several large-scale coke-oven plants carry out coking wastewater simple
Mechanical oil removal treatment after, send the supplement water for making quenching；After the seventies, some coke-oven plants have successively built biological dephenolize device,
Main purpose is the phenol deviate from coking wastewater；The eighties, two sections of biochemical, rear coagulating treatments, sludge dewaterings of development etc. is studied；
The end of the eighties and the beginning of the nineties, have carried out the denitrogenation of coking wastewater and have further reduced the experimental study and utilization of COD.
Now, domestic coking wastewater biology dephenolize problem is substantially achieved solution, but biological denitrificaion situation is not had
Effect improves.The relevant report that domestic coking wastewater fully achieves zero-emission is rare.
Coking strong brine, refers to strong brine of the coking wastewater after film process.Due to coking wastewater contained pollutant in itself
Sufficiently complex, the salinity of the strong brine of generation, organic impurities are by highly concentrated and pollutant after series of process is handled
Suitable difficult degradation.If without dealing carefully with, will necessarily have a negative impact to soil, surface water, surrounding environment etc..So
Coking strong brine is also a world-famous puzzle.
With deepening constantly for National Sustainable Development Strategies, circular economy, clean manufacturing, environmental protection work are to coking
The requirement that contaminated wastewater is administered is continuously improved, and not only the water quality after Treatment of Coking Effluent is required, is also had to taking new water
It is required that；Directly discharge water quality is required, discharge water quality indirectly is also required；Water pollution control result is required, to production
The production process of unboiled water pollution also requires, and is generally considered the water pollution control work that the coal chemical enterprise of high pollution industry faces
Make pressure increasingly to increase severely, the biochemical processing process that coal chemical enterprise generally uses cannot fully meet requirement, each coal chemical enterprise
Actively seeking the new technology of the processing up to standard of effective, reliable, economic coking wastewater and reuse.With answering for Dry Quenching Technology
The important channel put of being run in, coking wastewater among coking production disappears, to the recycling of coking wastewater, minimizing,
Harmless treatment is very urgent.
The content of the invention
The purpose of this utility model is to provide a kind of Zero-discharge coked wastewater treatment system, realizes the circulation of coking wastewater
Reuse, achieve the purpose that it is energy saving, lower consumption, subtract dirty, synergy.
The utility model is realized by following technical proposal：A kind of Zero-discharge coked wastewater treatment system, including by successively
The sewage disposal system that connected grease removal tank, flotation tank, neutralized pond, anaerobic pond, anoxic pond, aerobic tank, sedimentation basin are formed, and with
Clarifier sludge outlet be connected successively by sludge concentration tank, mud-water separation pond, pressure filtration mechanism into sludge treating system, it is special
Sign is：Sedimentation basin outlet of sewer successively with coagulation reaction tank, sand filter, ozone reactor, desalination pretreatment unit, desalination
Reason device, strong brine processing unit, strong brine flash distillation plant are connected.Heavy oil and part are removed so that coking wastewater enters grease removal tank
After light oil, into flotation tank, combined using a large amount of micro-bubbles with suspended matter, suspended matter is floated to after sewage surface to collect and is gone
Oil removal, flotation tank water outlet, which enters neutralized pond, enters back into anaerobic pond is hydrolyzed acidification reaction, reduces having in coking wastewater
Machine thing molecular weight, produces incomplete oxidation product, carries out denitrification denitrogenation reaction into anoxic pond afterwards, makes in coking wastewater
NO3 -、NO2 -It is reduced to nitrogen and escapes into air, coking wastewater enters aerobic tank, separates phenol, cyanogen, while completes denitrogenation, removes
Phosphorus, except organic pollutant, isolate sludge and sewage into sedimentation basin precipitation afterwards, sludge enters mud-water separation pond, separates
Sludge out be made after filter press press filtration mud cake return coking production dispensing in, sewage sequentially enter coagulation reaction tank,
After sand filter, ozone reactor is entered back into, after carrying out oxidation processes using ozone or ozone+ultraviolet, it is pre- to sequentially enter desalination
Processing unit, desalting processing device, strong brine processing unit, strong brine flash distillation plant, carry out strong brine and handle to being totally converted
For solid salt.
The grease removal tank is connected with accident pool, so as to when running into that water quality is poor or water is larger, grease removal tank water outlet shunting
To accident pool, when later process load mitigates, then flotation tank is re-fed into.
The desalination pretreatment unit is one kind in conventional sand filtration, butterfly filter, multistage filtering, cartridge filter
Or several combinations.
The desalting processing device is conventional ultrafiltration membrane filter and/or reverse osmosis membrane filt.
The strong brine processing unit is conventional nano-filtration membrane filter.
The strong brine flash distillation plant is conventional equipment.
The utility model has following advantages and effect：Such scheme has been adopted, can not only reach coking wastewater
Water quality standard for industries in GB50050-2007 Code for design of industrial recirculating cooling water treatment, realizes coking wastewater in steel
The fully recovering of integrated complex and zero-emission, especially with ozone process substitution fluid processing industrial microwave device, subtract significantly
The generation of few sludge, and flash distillation process is carried out to the strong brine that membrane process produces, strong brine is become solid salt, realize really
Zero-discharge coked wastewater in meaning, solve thes problems, such as that the current coking wastewater in China is difficult, is difficult to realize reuse.Society
It can realize that the reuse of coking wastewater reduces the discharge capacity of pollutant with environmental benefit aspect, greatly reduce pollutant to environment
Pollution and harm, realize the resource recycling of sewage.In terms of economic benefit, the reuse of coking wastewater is realized, reduce
New water consumption.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.
Zero-discharge coked wastewater treatment system provided by the utility model, including grease removal tank 1, flotation tank by being sequentially connected
2nd, the sewage disposal system that neutralized pond 3, anaerobic pond 4, anoxic pond 5, aerobic tank 6, sedimentation basin 7 are formed, and go out with 7 sludge of sedimentation basin
The connected sludge treating system being made of successively sludge concentration tank 9, mud-water separation pond 10, filter press 11 of mouth, wherein：Sedimentation basin
7 outlets of sewer are filled with coagulation reaction tank 12, sand filter 13, ozone reactor 14, desalination pretreatment unit 15, desalting processing successively
Put 16, strong brine processing unit 17, strong brine flash distillation plant 18 is connected.
The grease removal tank 1 is connected with accident pool 8, so that when running into that water quality is poor or water is larger, grease removal tank 1 goes out moisture
Accident pool 8 is flow to, when later process load mitigates, then is re-fed into flotation tank 2；The desalination pretreatment unit 15 is conventional
Butterfly filter, it is clear that or conventional multistage filtering or cartridge filter；The desalting processing device 16 is conventional
Ultrafiltration membrane filter, it is clear that or conventional reverse osmosis membrane filt；The strong brine processing unit 17 is received for conventional
Membrane filter；The strong brine flash distillation plant is conventional equipment.
During work, coking wastewater enters after grease removal tank 1 removes heavy oil and part light oil, into flotation tank 2, using a large amount of micro-
Minute bubbles are combined with suspended matter, suspended matter is floated to collect after sewage surface and is removed oil removal, flotation tank water outlet enter and
Pond 3, enter back into anaerobic pond 4 and be hydrolyzed acidification reaction, reduces the organic matter molecular mass in coking wastewater, produces incomplete oxidation
Product, carries out denitrification denitrogenation reaction into anoxic pond 5 afterwards, makes the NO in coking wastewater3 -、NO2 -Nitrogen is reduced to escape into greatly
Gas, coking wastewater enter aerobic tank 6, separate phenol, cyanogen, while complete denitrogenation, dephosphorization, except organic pollutant, afterwards
Sludge and sewage are isolated into the precipitation of sedimentation basin 7, sludge enters sludge concentration tank 9, mud-water separation pond 10, the dirt separated
Mud is made after 11 press filtration of filter press in the dispensing that mud cake returns to coking production, and sewage sequentially enters coagulation reaction tank 12, sand filtration
Behind pond 13, ozone reactor 14 is entered back into, after carrying out oxidation processes using ozone or ozone+ultraviolet, it is pre- to sequentially enter desalination
Processing unit 15, desalting processing device 16, strong brine processing unit 17, strong brine flash distillation plant 18, carry out strong brine handle to
It is completely converted into solid salt.
Claims (6)
1. a kind of Zero-discharge coked wastewater treatment system, including the grease removal tank by being sequentially connected, flotation tank, neutralized pond, anaerobic pond,
Anoxic pond, aerobic tank, sedimentation basin form sewage disposal system, and with clarifier sludge outlet be connected successively by sludge condensation
Pond, mud-water separation pond, pressure filtration mechanism into sludge treating system, it is characterised in that：Sedimentation basin outlet of sewer is anti-with coagulation successively
Ying Chi, sand filter, ozone reactor, desalination pretreatment unit, desalting processing device, strong brine processing unit, strong brine flash distillation
Device is connected.
2. Zero-discharge coked wastewater treatment system according to claim 1, it is characterised in that the grease removal tank and accident pool
It is connected.
3. Zero-discharge coked wastewater treatment system according to claim 1, it is characterised in that the desalination pretreatment unit
For the one or more combination in conventional sand filtration, butterfly filter, multistage filtering, cartridge filter.
4. Zero-discharge coked wastewater treatment system according to claim 1, it is characterised in that the desalting processing device is
Conventional ultrafiltration membrane filter and/or reverse osmosis membrane filt.
5. Zero-discharge coked wastewater treatment system according to claim 1, it is characterised in that the strong brine processing unit
For conventional nano-filtration membrane filter.
6. Zero-discharge coked wastewater treatment system according to claim 1, it is characterised in that the strong brine flash distillation plant
For conventional equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721179535.5U CN207362005U (en) | 2017-09-14 | 2017-09-14 | A kind of Zero-discharge coked wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721179535.5U CN207362005U (en) | 2017-09-14 | 2017-09-14 | A kind of Zero-discharge coked wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207362005U true CN207362005U (en) | 2018-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721179535.5U Expired - Fee Related CN207362005U (en) | 2017-09-14 | 2017-09-14 | A kind of Zero-discharge coked wastewater treatment system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110776218A (en) * | 2019-12-07 | 2020-02-11 | 新晃县污水处理有限责任公司 | Coking plant wastewater treatment process |
| CN110921927A (en) * | 2019-12-30 | 2020-03-27 | 杨咪咪 | Advanced oxidation treatment process method for coking wastewater |
| CN111680845A (en) * | 2020-06-15 | 2020-09-18 | 生态环境部南京环境科学研究所 | Water pollution discharge and water environment management system |
| CN112279453A (en) * | 2020-07-27 | 2021-01-29 | 南京久盈膜科技有限公司 | High COD wastewater treatment process and device |
-
2017
- 2017-09-14 CN CN201721179535.5U patent/CN207362005U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110776218A (en) * | 2019-12-07 | 2020-02-11 | 新晃县污水处理有限责任公司 | Coking plant wastewater treatment process |
| CN110921927A (en) * | 2019-12-30 | 2020-03-27 | 杨咪咪 | Advanced oxidation treatment process method for coking wastewater |
| CN111680845A (en) * | 2020-06-15 | 2020-09-18 | 生态环境部南京环境科学研究所 | Water pollution discharge and water environment management system |
| CN111680845B (en) * | 2020-06-15 | 2021-03-19 | 生态环境部南京环境科学研究所 | Water pollution discharge and water environment management system |
| CN112279453A (en) * | 2020-07-27 | 2021-01-29 | 南京久盈膜科技有限公司 | High COD wastewater treatment process and device |
| CN112279453B (en) * | 2020-07-27 | 2024-02-13 | 南京久盈膜科技有限公司 | High COD wastewater treatment process and device |
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| CF01 | Termination of patent right due to non-payment of annual fee |