CN204689815U - Apparatus for treating carbonized waste water - Google Patents
Apparatus for treating carbonized waste water Download PDFInfo
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- CN204689815U CN204689815U CN201520098710.2U CN201520098710U CN204689815U CN 204689815 U CN204689815 U CN 204689815U CN 201520098710 U CN201520098710 U CN 201520098710U CN 204689815 U CN204689815 U CN 204689815U
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Abstract
A kind of apparatus for treating carbonized waste water, comprise be connected by pipeline order biochemical treatment system, activated carbon adsorber, softening crystallizer, ultrafiltration membrance filter system, reverse osmosis membrane filtration system and spray evaporation system, and active carbon microwave regenerating unit, aerating system and sludge dewatering system.Adopt device of the present utility model, convenient operation and management, level of automation are high, working cost is lower, non-secondary pollution, effectively can administer coking chemical waste water, substantially wastewater zero discharge is realized, organism, ammonia nitrogen and salt in thorough elimination waste water grade to the destruction of environment, all waste water are carried out high-quality reuse simultaneously.
Description
Technical field
The utility model relates to wastewater treatment, particularly a kind of apparatus for treating carbonized waste water.
Background technology
Coking chemical waste water is the waste water containing a large amount of aromatic series and fused ring compound and heterogeneous ring compound (phenol cyanogen class) produced in coal coke, gas purification and coke chemicals removal process, have that quantity discharged is large, salt concentration concentration is high, hardness is higher, the feature such as organism and ammonia nitrogen concentration is high, biodegradability is poor, organism complicated, belong to the highly salt containing organic waste water of difficult for biological degradation.
At present, Treatment of Coking Effluent approach mainly comprises dilution biochemical process, Chemical treatment method and is directly used in wet quenching etc.Due to coking chemical waste water itself containing salinity higher, a large amount of process water must be consumed dilute to meet biochemical condition, the heterocycles such as the phenols in addition in waste water, naphthalene, cyanogen, pyridine, quinoline and polycyclc aromatic compound are all difficult to biological degradation, therefore biochemical process not only waste water resource is diluted, and poor processing effect, water outlet often can not stably reaching standard.Chemical method is by the suspended impurity in interpolation a large amount of chemical agent removal waste water and organic pollutant, the effluent quality of this method is unstable, reagent cost is high, can introduce secondary pollution, add medicament simultaneously and also can increase the difficulty of follow-up desalting treatment, progressively eliminate at present and maybe must work in coordination with other process means and use.It is only then pollutent transfer that coking chemical waste water is directly used in wet quenching, is not effectively addressed; The coking chemical waste water water yield is usually far away higher than supporting wet quenching water on the other hand, and reality is also infeasible.
Along with harsh gradually to the raising of environmental protection consciousness and relevant environmental regulation and industry access condition of compatriots, the pattern of waste water being carried out directly discharge after extensive style process is unworkable at coking industry.In recent years, seek efficient, energy-conservation Treatment of Coking Effluent, especially Recycle Technology of Waste Water is just becoming the study hotspot in industry.Due to developing rapidly and wide range of industrial applications of membrane technique, MBR film, ultra-filtration membrane and reverse osmosis membrane etc. are adopted to become the application trend in Treatment of Coking Effluent and reuse field just gradually in conjunction with conventional biochemical, materialization combination process.
Chinese patent CN103112991A discloses a kind of coking wastewater processing system and coking waste water treatment method, comprises the process of coking chemical waste water coal tar, coking chemical waste water oxidation and biochemical treatment and coking wastewater deep treatment three big unit.Wherein coking chemical waste water coal tar processing unit comprises oil removal, air supporting and acid out step, mainly in order to remove variable grain size and coal tar of different nature; Coking chemical waste water oxidation and biochemical treatment unit comprise the step such as one-level catalytic oxidation, one-level precipitation, anaerobism, anoxic, aerobic, secondary catalytic oxidation, two-stage precipitation, BAF and membrane biological reaction, and main purpose is the organism in treatment of Coking Wastewater; Coking wastewater deep treatment unit comprises the steps such as one-level coarse filtration, secondary coarse filtration, one-level security personnel filtration, nanofiltration filtration, secondary security personnel filtration and osmosis filtration.Adopt this open method effectively can remove coal tar, suspended substance, organism and ammonia nitrogen in coking chemical waste water, the coking chemical waste water COD value of the final process exported is lower, can reach emission standard.But this open method has following shortcoming: (1) complex process, flow process are tediously long, complex operation, management difficulty are large, and actual construction investment and the huge enterprise that makes of working cost are difficult to bear; (2) nanofiltration and reverse osmosis are except the impact by organic contamination in concentration process, also usually by the restriction of the inorganic factor such as total salinity and hardness, and do not arrange corresponding effectively except hard pre-treatment measure in this method; (3) the dense water of the nanofiltration described in and reverse osmosis concentrated water are all back to front end equalizing tank, this is infeasible, because this can cause intrasystem total salinity, hardness and non-degradation of organic substances at system internal recycle and rapidly enrichment, finally cause nanofiltration and reverse osmosis membrane system because osmotic pressure is too high or fouling membrane, fouling is serious and paralysis is stopped transport; (4) do not consider to have gone into operation the utilization of purification of waste water facility run in existing coke-oven plant.
Chinese patent CN103466890A discloses a kind of coking wastewater deep treatment and reclamation set and application method thereof, Chinese patent CN102976511A discloses the recoverying and utilizing method of coking chemical waste water film-filter concentration liquid, Chinese patent CN102874990A discloses three embrane method advanced treatment process of coking waste water and equipment thereof, above three open methods all adopt various preprocessing means degradation of organic substances, prevent the organic contamination of film, utilize embrane method to carry out degree of depth Treatment for Reuse to coking chemical waste water, reclaim the water resources of a part of high-quality.But there is common problem in them: (1) does not have the pre-treatment measure considering to prevent membranous system fouling, and coking chemical waste water height salinity, high rigidity, fouling and the pollution of film will certainly be caused in membrane concentration, filtration procedure, thus cause the problem such as flux decline, the lost of life; (2) do not hand over the outlet of reverse osmosis or the dense water of nanofiltration this strand of enriching pollutants liquid or use it for blast-furnace slag cooling, flushing cinder water, coal yard dust suppression etc.This strand of enriching pollutants liquid contains the salinity (TDS:10000 ~ 20000mg/L) of undegradable organism and high density, and fouling tendency clearly, direct discharge can cause most evil bad environmental disruption, and simply reuse can make the equipment of reuse, pipeline causes corrosion and scaling and damage.
Chinese patent CN101851046A discloses a kind of coking wastewater deep treatment and full reclamation set and application method thereof, employing is biochemical, oxidation adds that the method that membrane separation technique and evaporation combine is carried out advanced treatment to coking chemical waste water and reaches zero release, that pollutant each in coking chemical waste water is degraded by one, and by the new treatment process of rear for process water complete-reclaiming.But employing this method, can consume a large amount of oxygenant, and reagent cost is high, evaporation energy consumption is high, do not block up to prevent reverse osmosis membrane and fouling of evaporator, dirt about the measure of removing of the high rigidity in coking chemical waste water, and do not consider the coking impact of remaining organism on evaporation.
Utility model content
The purpose of this utility model, is just to provide a kind of apparatus for treating carbonized waste water.
The purpose of this utility model is achieved in that a kind of apparatus for treating carbonized waste water, comprise be connected by pipeline order biochemical treatment system, activated carbon adsorber, softening crystallizer, ultrafiltration membrance filter system, reverse osmosis membrane filtration system and spray evaporation system.
Also comprise active carbon microwave regenerating unit, this active carbon microwave regenerating unit is connected with activated carbon adsorber with gac export pipeline respectively by gac inlet ductwork, and active carbon microwave regenerating unit is also connected with biochemical treatment system by phlegma delivery conduit.
Also comprise aerating system, this aerating system connects ultrafiltration membrance filter system, realizes cleaning the intermittent aeration of ultrafiltration membrance filter system.
Also comprise sludge concentration and dewatering system, this sludge concentration and dewatering system connects softening crystallizer and ultrafiltration membrance filter system, collect the mud of softening crystallizer and the generation of ultrafiltration membrance filter system, after concentrated, adopt plate-and-frame filter press, band filter, screw extrusion water extracter or centrifuge to dewater, solid slag discharge after dehydration, clear liquid is transmitted back to ultrafiltration membrance filter system.
Described activated carbon adsorber adopts outstanding fluidized bed form.
Described softening crystallizer is equipment reaction, clarified separation organically combined, and bottom is reaction zone, and top is settling section.
The aperture of the ultra-filtration membrane that described ultrafiltration membrance filter system adopts is 0.002 ~ 0.1 μm.
Described reverse osmosis membrane filtration system adopts first-stage reverse osmosis film or multi-stage reverse osmosis film cascade or multistage reverse osmosis membrane to connect, and the ratio of desalinization of reverse osmosis membrane is 90% ~ 99.7%; The high-pressure pump of reverse osmosis membrane filtration system adopts variable frequency control, can regulate according to the pollution condition of influent quality and reverse osmosis membrane.
Described spray evaporation system adopts single-effect evaporation or multiple-effect evaporation; Evaporation thermal source or power adopt the hot water of steam or mechanical compressor or more than 85 DEG C.
The utility model, owing to have employed above technical scheme, makes it compared with prior art, has following advantage and disadvantage:
1, adopt that device of the present utility model, convenient operation and management, level of automation are high, working cost is lower, non-secondary pollution, effectively can administer coking chemical waste water, substantially wastewater zero discharge is realized, organism, ammonia nitrogen and salt in thorough elimination waste water grade to the destruction of environment, all waste water are carried out high-quality reuse simultaneously.
2, the utility model provides perfect pretreatment system, especially charcoal absorption and microwave activated carbon regeneration can remove organism, the not treatable larger molecular organics of degraded biochemistry in water body further, the hardness that softening crystallizer can be removed in water body eliminates the fouling factor, work along both lines and solve organism, SS, hardness etc. to the operating fouling of ultra-filtration membrane, reverse osmosis membrane and spray evaporation, coking impact, drastically increase bi-membrane method realizes industrialization promotion possibility in Treatment of Coking Effluent and recovery field.
3, evaporation adopts vacuum spraying evaporation, evaporation of water is made to be that solid space evaporates by traditional surface evaporation, its evaporation capacity is traditional 10 ~ 50 times, evaporation equipment specification can be made to reduce, and the hot water of low-grade more than 85 DEG C can be used as heating medium, both reduced energy consumption, realized energy-saving and cost-reducing, effectively can eliminate again the bubble-related issues in evaporative process, ensure system smooth running.
Accompanying drawing explanation
Fig. 1 is the basic structure schematic diagram of the utility model apparatus for treating carbonized waste water.
Embodiment
See Fig. 1, apparatus for treating carbonized waste water of the present utility model, comprise be connected by pipeline order biochemical treatment system 1, activated carbon adsorber 2, softening crystallizer 3, ultrafiltration membrance filter system 4, reverse osmosis membrane filtration system 5 and spray evaporation system 6, and active carbon microwave regenerating unit 7, aerating system 8 and sludge dewatering system 9.Active carbon microwave regenerating unit 7 is connected with activated carbon adsorber with gac export pipeline 72 respectively by gac inlet ductwork 71, and active carbon microwave regenerating unit is also connected with biochemical treatment system by phlegma delivery conduit 73.Aerating system 8 connects ultrafiltration membrance filter system, realizes cleaning the intermittent aeration of ultrafiltration membrance filter system.Sludge concentration and dewatering system 9 connects softening crystallizer and ultrafiltration membrance filter system, collect the mud of softening crystallizer and the generation of ultrafiltration membrance filter system, after concentrated, adopt plate-and-frame filter press, band filter, screw extrusion water extracter or centrifuge to dewater, solid slag discharge after dehydration, clear liquid is transmitted back to ultrafiltration membrance filter system.Biochemical treatment system 1 receives coking chemical waste water, and the permeate of reverse osmosis membrane filtration system 5 and the phlegma of spray evaporation system 6 converge as industrial pure water reuse, and spray evaporation system 6 evaporates the solid salt that obtains as byproduct reuse or sell outward.
Activated carbon adsorber in the utility model adopts outstanding fluidized bed form.
Softening crystallizer in the utility model is equipment reaction, clarified separation organically combined, and bottom is reaction zone, and top is settling section.
The aperture of the ultra-filtration membrane that the ultrafiltration membrance filter system in the utility model adopts is 0.002 ~ 0.1 μm.
Reverse osmosis membrane filtration system in the utility model adopts first-stage reverse osmosis film or multi-stage reverse osmosis film cascade or multistage reverse osmosis membrane to connect, and the ratio of desalinization of reverse osmosis membrane is 90% ~ 99.7%; The high-pressure pump of reverse osmosis membrane filtration system adopts variable frequency control, can regulate according to the pollution condition of influent quality and reverse osmosis membrane.
Spray evaporation system in the utility model adopts single-effect evaporation or multiple-effect evaporation; Evaporation thermal source or power adopt the hot water of steam or mechanical compressor or more than 85 DEG C.
Principle of work of the present utility model is: first just coking chemical waste water introduces biochemical treatment system after oil removal process, after biochemical treatment, import activated carbon adsorber, carries out adsorbing and removing to the remaining organism in waste water; Then import softening crystallizer by removing the waste water after remaining organism through activated carbon adsorber, add except hard medicament, remove Ca, Mg hardness of water body; Then the waste water after softening crystallization is imported ultrafiltration membrance filter system, carry out solid-liquid separation, suspended solid is trapped, ultrafiltration permeate imports reverse osmosis membrane filtration system, reverse osmosis permeate is as pure water reuse, reverse osmosis concentrated water imports spray evaporation system and evaporates, and evaporation condensate and reverse osmosis permeate merge as pure water reuse, and the solid salt that evaporation obtains is as byproduct reuse or sell outward.
Claims (9)
1. an apparatus for treating carbonized waste water, is characterized in that: comprise be connected by pipeline order biochemical treatment system, activated carbon adsorber, softening crystallizer, ultrafiltration membrance filter system, reverse osmosis membrane filtration system and spray evaporation system.
2. apparatus for treating carbonized waste water according to claim 1, it is characterized in that: also comprise active carbon microwave regenerating unit, this active carbon microwave regenerating unit is connected with activated carbon adsorber with gac export pipeline respectively by gac inlet ductwork, and active carbon microwave regenerating unit is also connected with biochemical treatment system by phlegma delivery conduit.
3. apparatus for treating carbonized waste water according to claim 1, is characterized in that: also comprise aerating system, and this aerating system connects ultrafiltration membrance filter system, realizes cleaning the intermittent aeration of ultrafiltration membrance filter system.
4. apparatus for treating carbonized waste water according to claim 1, it is characterized in that: also comprise sludge concentration and dewatering system, this sludge concentration and dewatering system connects softening crystallizer and ultrafiltration membrance filter system, collect the mud of softening crystallizer and the generation of ultrafiltration membrance filter system, after concentrated, adopt plate-and-frame filter press, band filter, screw extrusion water extracter or centrifuge to dewater, solid slag discharge after dehydration, clear liquid is transmitted back to ultrafiltration membrance filter system.
5. apparatus for treating carbonized waste water according to claim 2, is characterized in that: described activated carbon adsorber adopts outstanding fluidized bed form.
6. apparatus for treating carbonized waste water according to claim 1, is characterized in that: described softening crystallizer is equipment reaction, clarified separation organically combined, and bottom is reaction zone, and top is settling section.
7. apparatus for treating carbonized waste water according to claim 1, is characterized in that: the aperture of the ultra-filtration membrane that described ultrafiltration membrance filter system adopts is 0.002 ~ 0.1 μm.
8. apparatus for treating carbonized waste water according to claim 1, is characterized in that: described reverse osmosis membrane filtration system adopts first-stage reverse osmosis film or multi-stage reverse osmosis film cascade or multistage reverse osmosis membrane to connect, and the ratio of desalinization of reverse osmosis membrane is 90% ~ 99.7%; The high-pressure pump of reverse osmosis membrane filtration system adopts variable frequency control, can regulate according to the pollution condition of influent quality and reverse osmosis membrane.
9. apparatus for treating carbonized waste water according to claim 1, is characterized in that: described spray evaporation system adopts single-effect evaporation or multiple-effect evaporation; Evaporation thermal source or power adopt the hot water of steam or mechanical compressor or more than 85 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520098710.2U CN204689815U (en) | 2015-02-11 | 2015-02-11 | Apparatus for treating carbonized waste water |
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| CN201520098710.2U CN204689815U (en) | 2015-02-11 | 2015-02-11 | Apparatus for treating carbonized waste water |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145423A (en) * | 2016-08-31 | 2016-11-23 | 江苏久吾高科技股份有限公司 | A kind of epoxychloropropane based on membrane separation technique produces the processing method and processing device of waste water |
| CN106186404A (en) * | 2016-08-31 | 2016-12-07 | 江苏久吾高科技股份有限公司 | A kind of epoxychloropropane produces the processing method and processing device of waste water |
| CN108046527A (en) * | 2017-12-20 | 2018-05-18 | 北京汇能兴业科技有限公司 | A kind of processing system of high concentrated organic wastewater |
| CN108623085A (en) * | 2017-03-18 | 2018-10-09 | 深圳市深水生态环境技术有限公司 | A kind of high nitrogen organic wastewater film-filter concentration liquid advanced treatment system and method |
-
2015
- 2015-02-11 CN CN201520098710.2U patent/CN204689815U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145423A (en) * | 2016-08-31 | 2016-11-23 | 江苏久吾高科技股份有限公司 | A kind of epoxychloropropane based on membrane separation technique produces the processing method and processing device of waste water |
| CN106186404A (en) * | 2016-08-31 | 2016-12-07 | 江苏久吾高科技股份有限公司 | A kind of epoxychloropropane produces the processing method and processing device of waste water |
| CN106145423B (en) * | 2016-08-31 | 2023-11-03 | 江苏久吾高科技股份有限公司 | Method and device for treating epichlorohydrin production wastewater based on membrane separation technology |
| CN108623085A (en) * | 2017-03-18 | 2018-10-09 | 深圳市深水生态环境技术有限公司 | A kind of high nitrogen organic wastewater film-filter concentration liquid advanced treatment system and method |
| CN108623085B (en) * | 2017-03-18 | 2022-05-31 | 深圳市深水生态环境技术有限公司 | Advanced treatment method for high-nitrogen organic wastewater membrane filtration concentrate |
| CN108046527A (en) * | 2017-12-20 | 2018-05-18 | 北京汇能兴业科技有限公司 | A kind of processing system of high concentrated organic wastewater |
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