CN203307175U - Deep coking wastewater treatment device by using advanced oxidation process combined with membrane bioreactor - Google Patents
Deep coking wastewater treatment device by using advanced oxidation process combined with membrane bioreactor Download PDFInfo
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- CN203307175U CN203307175U CN2013202928561U CN201320292856U CN203307175U CN 203307175 U CN203307175 U CN 203307175U CN 2013202928561 U CN2013202928561 U CN 2013202928561U CN 201320292856 U CN201320292856 U CN 201320292856U CN 203307175 U CN203307175 U CN 203307175U
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Abstract
The utility model discloses a deep coking wastewater treatment device by using advanced oxidation process combined with a membrane bioreactor, and a biochemical treatment system is modified by using the membrane bioreactor. An aerobiotic pond is communicated with the membrane bioreactor through through holes in a pond wall, a water outlet of the membrane bioreactor is connected with a water inlet of a self-priming pump through a pipeline, a water outlet of the self-priming pump is communicated with a water producing pond through a pipeline, a water outlet of the water producing pond is connected with a water inlet of a gas-water mixing pump through a pipeline, a gas inlet of the gas-water mixing pump is connected with an advanced oxidation device through a pipeline, a water outlet of the gas-water mixing pump is connected with an inlet of a sterilizing device through a pipeline, and a water outlet of the sterilizing device is used as an outlet for reuse of recycled water. The device disclosed by the utility model has the advantages that the space utilization is reasonable and compact, the operation is easy and the cost is low; non-biodegradable organics in water can be completely oxidized and can be prevented from contacting a sterilizing pond, the problem of secondary pollution caused by introducing other chemical agents and the like is avoided, and the thick water treatment problem is solved.
Description
Technical field
The utility model belongs to environmental technology field, relates to a kind of coking wastewater deep treatment device, specifically a kind of membrane bioreactor associating advanced oxidation processes coking wastewater deep treatment device.
Background technology
Coking chemical waste water is a kind of trade effluent of generally acknowledged difficult for biological degradation, its difficulty is that the biodegradability of waste water is poor, except inorganic pollution beyond the region of objective existences such as ammonia, cyanogen and thiocyanates, also contain the heterocycle such as phenols, naphthalene, pyridine, quinoline and polycyclc aromatic compound (PAHS) etc. and be difficult to biodegradable goods and materials, these materials can produce long-range effects to environment, and the studied carcinogenic substance that turns out to be of part, ammonia nitrogen in high density has very strong restraining effect to microorganism active in addition, and Nitrogen removal effect is not good.At present, coking wastewater processing system generally includes conventional bi-level treatment.Coagulation refers to from high-concentration sewage, recycling pollutent, and its technique comprises ammonia distillation, ammoniacal liquor dephenolize, whole cold water decyanation etc., is preprocessing process.Second-stage treatment refers to the phenol-cyanogen sewage harmless treatment, take activated sludge process as main, also comprises enhanced biological treatment technology etc.Due to further advanced treatment somewhat expensive, make domestic many coke-oven plants hang back, so most coking chemical waste water is only through the just directly discharge of conventional bi-level treatment.But waste water after above-mentioned processing wherein some poisonous and harmful substances (prussiate, COD and heterogeneous ring compound etc.) still do not reach the emission standard that country allows.
At present, the outstanding problem that advanced treatment process of coking waste water exists is as follows: one, by the chemical agent advanced treatment of waste water, and the method may be introduced secondary pollution, or causes and increase follow-up desalination expense; Two, coking chemical waste water is used for to wet quenching or blast furnace slag flushing, but transfer has occurred Pollutants in Wastewater, operating environment is poor simultaneously, has the problems such as pipe network and equipment corrosion; Three, the dense water whereabouts after embrane method desalination advanced treatment is also to need the problem of solution badly.
In order to promote industrial structure upgrading, standard industry healthy development, to promote energy-saving and emission-reduction and technical progress, China Ministry of Industry and Information has promulgated No. 15 files of " coking industry entry criteria (2008 revision) " on December 19th, 2008, and clearly define: after the wastewater containing phenol and cyanide processing is qualified, will recycle, must not efflux.Therefore, it is to improve the waste water circulation rate, reduce wastewater disposition, reduce the optimal selection of new water consumption that coking chemical waste water is carried out to advanced treatment and reuse, and seek a kind of efficiently, advanced treatment and reuse technology are the active demands of current coking wastewater deep treatment process cheaply.
Along with the aggravation of shortage of water resources, membrane separation technique has obtained developing rapidly in the recent period.Wherein, membrane bioreactor (Membrane Bioreactor, be called for short MBR) be a kind of by the new and effective wastewater treatment and reuse technology of efficiently holding back and carrying out a biological disposal upon and organically combine of film, be also one of the most advanced in the world sewage disposal and regeneration technology.Membrane bioreactor has the incomparable clear superiority of many other biological treatments, mainly contain following some: 1. can carry out efficiently solid-liquid separation, separating effect is much better than traditional settling tank, produce water water quality good, produce water suspension and turbidity close to zero, but direct reuse, realize the resource utilization of sewage; 2. the efficient crown_interception of film, be trapped in reactor microorganism fully, and the microorganism concn in reactor is high, and the anti impulsion load ability is strong; 3. be conducive to breed the holding back of nitrobacteria slowly, Growth and reproduction, the system nitrification efficiency is improved; 4. mud is long age; Membrane sepn makes the macromole difficult degradation composition in sewage, enough residence time are arranged in the bio-reactor of finite volume, greatly improved the degradation efficiency of hardly degraded organic substance, reactor moves under age at high volumetric loading, low sludge loading, long mud, can realize basic discharged without residual mud.And the application of advanced oxidation processes can be by the further advanced treatment of MBR water outlet, water outlet can direct reuse, can save in a large number water of productive use, and the dense water treatment problems of having avoided two embrane methods to produce.
Summary of the invention
The purpose of this utility model is to overcome weak point of the prior art, provide a kind of and can reduce the Treatment of Coking Effluent cost, save a large amount of water of productive use, economic, practical, efficient and can form in a kind of membrane bioreactor associating advanced oxidation processes coking wastewater deep treatment device of water reuse, the utilization of resources.
For realizing the purpose of this utility model, we will adopt following technical scheme to be implemented:
A kind of membrane bioreactor associating advanced oxidation processes coking wastewater deep treatment device, comprise pretreatment system and biochemical treatment system and watch-keeping cubicle, described pretreatment system comprises grease removal tank, equalizing tank and the flotation cell connected successively, and the water outlet of flotation cell is connected with the preprocessing coking wastewater input tube of this device; Described biochemical treatment system comprises anaerobic pond, anoxic pond and Aerobic Pond, and the preprocessing coking wastewater input tube is connected with Aerobic Pond by anaerobic pond, anoxic pond successively; In described watch-keeping cubicle, be provided with all devices circuit control unit, control and adopt the PLC device, can realize fully automatic operation; It is characterized in that: this device also comprises: membrane bioreactor, advanced oxidation device, sterilizing unit, air-water mixing pump and product pond;
Described Aerobic Pond communicates with membrane bioreactor by the through hole on pool wall, the water outlet of membrane bioreactor is connected with the water-in of vacuum primingpump by pipeline, the water outlet of vacuum primingpump communicates with the water-in that produces pond by pipeline, the water outlet that produces pond is connected with the air-water mixing pump water-in by pipeline, the inlet mouth of air-water mixing pump is connected with oxidation unit by pipeline, the water outlet of air-water mixing pump is connected with the water-in of sterilizing unit by pipeline, and the water outlet of sterilizing unit is middle water reuse outlet.
Described membrane bioreactor is to consist of membrane biological reaction pond, aeration plate, Aeration fan, membrane module, sludge reflux pump, reverse flow valve and microbe colony, the bottom in Aerobic Pond and membrane biological reaction pond is equipped with aeration plate, aeration plate communicates with outside Aeration fan by pipeline, at the bottom of the pond in membrane biological reaction pond, be provided with sewage draining exit, sewage draining exit is connected with the import of sludge reflux pump by blow-off pipe, the sludge reflux pump outlet is connected with an end of two reverse flow valves respectively by pipeline, the other end of two reverse flow valves is connected by the mud mouth at the bottom of pipeline and described anaerobic pond and anoxic pond pond, in the membrane biological reaction pond, be provided with membrane module arranged side by side, the water outlet of membrane module is connected with the water-in of vacuum primingpump by pipeline, in the film biochemical reaction tank, be provided with microbe colony.
Described advanced oxidation device is any one in ozonizer, photocatalytic ozonation device, metal catalytic ozone-oxidizing device or Fenton oxidation tower.
Described sterilizing unit is any one in microwave ultraviolet producer, optical heat radiation sterilizing unit, ultraviolet generator or chlorine dioxide generator.
Another outlet in described product pond is connected with the water-in of vacuum primingpump by pipeline, and the water outlet of vacuum primingpump communicates with the film biochemical reaction tank by pipeline.
On described vacuum primingpump and pipeline that the film biochemical reaction tank communicates, be provided with film silk backwash chemicals dosing plant.
Described membrane module is comprised of hollow fiber ultrafiltration membrane.
Described membrane module is immersed in the film biochemical reaction tank.
Beneficial effect
One, this device utilize membrane bioreactor, adopt the design of independent immersion, can realize on-line cleaning, space utilization rationally compact, simple to operate, cost is low, suitability is strong, has very strong engineering using value.
Two, this device is by the application high-level oxidation technology, by the whole oxidations of hardly degraded organic substance in water, save simultaneously disinfecting tank, avoided causing by introducing other chemical agents etc. the problem of secondary pollution, also solved the dense water treatment problems that two embrane methods produce.Simultaneously, also realize reduction Treatment of Coking Effluent cost, saved the purpose of a large amount of water of productive use, reached good, the stable effect of water outlet.
Three, the membrane Bio-reactor Technology of the utility model application is a kind of by the new and effective wastewater treatment and reuse technology of efficiently holding back and carrying out a biological disposal upon and organically combine of film, is also one of the most advanced in the world sewage disposal and regeneration technology.Membrane bioreactor has the incomparable clear superiority of many other biological treatments, can carry out efficiently solid-liquid separation, and separating effect is much better than traditional settling tank, produce water water quality good, produce water suspension and turbidity close to zero, but direct reuse is realized sewage recycling; The efficient crown_interception of film, be trapped in reactor microorganism fully, can maintain higher microorganism concn; Be conducive to breed the holding back of nitrobacteria slowly, Growth and reproduction, the system nitrification efficiency is improved; Membrane sepn makes the macromole difficult degradation composition in sewage, enough residence time are arranged in the bio-reactor of finite volume, greatly improve the degradation efficiency of hardly degraded organic substance, reactor moves under age at high volumetric loading, low sludge loading, long mud, can realize basic discharged without residual mud; Produce hydromining and sterilize with smelly microwave ultraviolet producer, without using chemicals treatment, reduce secondary pollution, for quality of reused water provides Reliable guarantee.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1, membrane bioreactor, 1-1, membrane biological reaction pond, 2, oxidation unit, 3, vacuum primingpump, 4, anaerobic pond, 5, anoxic pond, 6, Aerobic Pond, 7, produce pond, 8, air-water mixing pump, 9, sterilizing unit, 10, sludge reflux pump, 11, Aeration fan, 12, aeration plate, 13, preprocessing coking wastewater input tube, 14, middle water reuse outlet, 15, membrane module, 16, reverse flow valve, 17, film silk backwash chemicals dosing plant, 18, watch-keeping cubicle.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of membrane bioreactor associating advanced oxidation processes coking wastewater deep treatment device as shown in Figure 1, comprise pretreatment system and biochemical treatment system and watch-keeping cubicle, described pretreatment system comprises grease removal tank, equalizing tank and the flotation cell connected successively, and the water outlet of flotation cell is connected with the preprocessing coking wastewater input tube 13 of this device; Described biochemical treatment system comprises anaerobic pond 4, anoxic pond 5 and Aerobic Pond 6, and preprocessing coking wastewater input tube 13 is connected with Aerobic Pond 6 by anaerobic pond 4, anoxic pond 5 successively; 18 li, described watch-keeping cubicle is provided with all devices circuit control unit, controls and adopts the PLC device, can realize fully automatic operation; This device also comprises: membrane bioreactor 1, vacuum primingpump 3, oxidation unit 2, sterilizing unit 9, air-water mixing pump 8, product pond 7;
Described Aerobic Pond 6 communicates with membrane bioreactor 1 by the through hole on pool wall, the water outlet of membrane bioreactor 1 is connected with the water-in of vacuum primingpump 3 by pipeline, the water outlet of vacuum primingpump 3 communicates with product pond 7 by pipeline, the water outlet that produces pond 7 is connected with the water-in of air-water mixing pump 8 by pipeline, the inlet mouth of air-water mixing pump 8 is connected with oxidation unit 2 by pipeline, the water outlet of air-water mixing pump 8 is connected with the import of sterilizing unit 9 by pipeline, and the water outlet of sterilizing unit 9 is middle water reuse outlet 14.
Described membrane bioreactor is to consist of membrane biological reaction pond 1-1, aeration plate 12, Aeration fan 11, membrane module 15, sludge reflux pump 10, reverse flow valve 16 and microbe colony, Aerobic Pond 6 is equipped with aeration plate 12 with the bottom of membrane biological reaction pond 1-1, aeration plate 12 communicates with outside Aeration fan 11 by pipeline, the membrane biological reaction pond is provided with sewage draining exit at the bottom of the 1-1De pond, sewage draining exit is connected with the import of sludge reflux pump 10 by blow-off pipe, the outlet of sludge reflux pump 10 is connected with an end of two reverse flow valves 16 respectively by pipeline, the other end of two reverse flow valves 16 is connected by the mud mouth at the bottom of pipeline and described anaerobic pond 4 and anoxic pond 5 ponds, in the 1-1 of membrane biological reaction pond, be provided with membrane module arranged side by side 15, the water outlet of membrane module 15 is connected with the water-in of vacuum primingpump 3 by pipeline, in film biochemical reaction tank 1-1, be provided with microbe colony.
Described oxidation unit 2 is any one in ozonizer, photocatalytic ozonation device, metal catalytic ozone-oxidizing device or Fenton oxidation tower.
Described sterilizing unit 9 is any one in microwave ultraviolet producer, optical heat radiation sterilizing unit, ultraviolet generator or chlorine dioxide generator.
Another outlet in described product pond 7 is connected with vacuum primingpump 3 by pipeline, and the water outlet of vacuum primingpump 3 communicates with film biochemical reaction tank 1-1 by pipeline.
On described vacuum primingpump 3 and pipeline that film biochemical reaction tank 1-1 communicates, be provided with film silk backwash chemicals dosing plant 17.
Described membrane module 15 is comprised of hollow fiber ultrafiltration membrane.
Described oxidation unit 2 employing ozonizers, realized without concentrated water discharge, thereby overcome the difficult problem of the dense water treatment of two embrane methods; Described sterilizing unit 9 adopts microwave ultraviolet producer, and the sterilizing unit 9 that the product hydromining is used carries out disinfection for microwave ultraviolet producer, and the sterilization high-efficient simple, without the loaded down with trivial details and occupation of land of using required dosing pump, dosing tank and the medicine system of tradition sterilization to bring.
As shown in Figure 1, the water-in of above-mentioned MBR membrane bioreactor 1 is connected with preprocessing coking wastewater input tube 13, in described reaction tank body, be set side by side with immersion MBR membrane module 15, bottom is provided with aeration plate 12, described aeration plate 12 is connected with Aeration fan 11, the water outlet of described MBR membrane module 15 is connected with vacuum primingpump 3, and the sewage draining exit at the bottom of described reaction tank is connected with sludge reflux pump 10.
The principle of work of above-mentioned coking wastewater deep treatment device is as follows: MBR membrane biological reaction pond 1 is laid immersion type membrane component 15 and is mainly carried out the degraded of organic pollutant and separating of muddy water, also holds back the partial suspended thing simultaneously.Core as treatment system, membrane biological reaction pond 1-1 comprises microbe colony, membrane module 15, water gathering system, water production system, aerating system, after aerobic aeration and biological treatment, through membrane element, filter by vacuum primingpump 3 and extract out and enter MBR product pond 7 again, this water can directly discharge, also can directly be used as the inferior grade water, such as coal yard dust suppression etc.; Also can adopt the external membrane treater to carry out sewage disposal herein.After the film silk polluted, available MBR produced the water dosing and cleans.As water reuse in wanting, MBR produces water and needs advanced treatment, the oxygenant that oxidation unit 2 produces adds MBR to produce water through air-water mixing pump 8, and oxidation unit 2 mainly, to the further advanced treatment of waste water, removal difficult degradation COD, sterilization, makes effluent quality reach the standard of reuse fully.In addition, this treatment process is without concentrated water discharge, thereby overcome the difficult problem of the dense water treatment of two embrane methods.As required, the hydromining of reuse is sterilized with sterilizing unit 9.18 li, watch-keeping cubicle is provided with all devices circuit control unit, controls and adopts the PLC device, can realize fully automatic operation.
The specific works process of above-mentioned coking wastewater deep treatment device is as follows: the waste water via preprocessing coking wastewater input tube 13 enters MBR membrane biological reaction pond 1-1.MBR membrane bioreactor 1 adopts the immersion structure, and the aeration form adopts Aeration fan 11 continuous aerations, and aeration intensity is controlled at 0.15～0.4m3/h, and dissolved oxygen (DO) concentration is 1.5～6mg/L, and the film cleaning interval is 15～20d.Mud adopts the mud that in coke-oven plant's biochemical treatment process, Aerobic Pond 6 refluxes, purpose be by high-concentration activated sludge to the further biochemical degradation of micromolecular compound, also hold back the partial suspended thing simultaneously.After coking chemical waste water entered MBR membrane biological reaction pond 1, the water after aerobic aeration and biological treatment, extracted out after by vacuum primingpump 3, being filtered by filter membrane 15, and mud is sucked and is back to anaerobic pond 4 and anoxic pond 5 by sludge reflux pump 10.The regular machinery of excess sludge is drawn and is dug outward transport.
The product water of being extracted out by vacuum primingpump 3 can directly be used as the inferior grade water, such as coal yard dust suppression etc., also can continue advanced treatment, enter MBR and produce pond 7, it mainly plays the regulating pondage effect, in addition can be by after the backwash dosing, can directly in MBR membrane cisterna 1-1, regularly to MBR membrane module 15, carrying out online backwash, to keep flux and the life-span of film 15.The oxygenant that oxidation unit 2 produces adds reaction by air-water mixing pump 8, and purpose is to the further advanced treatment of waste water, removes difficult degradation COD, makes effluent quality can meet middle water reuse requirement.After by sterilizing unit 9, carrying out disinfection again, produce water as middle water reuse.
The utility model has carried out the lab scale test of 50L/h, experiment effect proves, this device can meet the requirement of coking wastewater deep treatment, and the COD clearance can reach more than 60%, waste water between specific conductivity 500～2000 μ s/cm, the system recoveries rate is in 50～70% left and right.
It will be appreciated that: although the present embodiment has been done more detailed explanation to the utility model; but these explanations; just to simple declaration of the present utility model; rather than to restriction of the present utility model; anyly do not exceed the intraparenchymatous innovation and creation of the utility model, all fall in protection domain of the present utility model.
Claims (8)
1. a membrane bioreactor is combined advanced oxidation processes coking wastewater deep treatment device, comprise pretreatment system and biochemical treatment system and watch-keeping cubicle, described pretreatment system comprises grease removal tank, equalizing tank and the flotation cell connected successively, and the water outlet of flotation cell is connected with the preprocessing coking wastewater input tube of this device; Described biochemical treatment system comprises anaerobic pond, anoxic pond and Aerobic Pond, and the preprocessing coking wastewater input tube is connected with Aerobic Pond by anaerobic pond, anoxic pond successively; In described watch-keeping cubicle, be provided with all devices circuit control unit, control and adopt the PLC device, can realize fully automatic operation; It is characterized in that: this device also comprises: membrane bioreactor, advanced oxidation device, sterilizing unit, air-water mixing pump and product pond;
Described Aerobic Pond communicates with membrane bioreactor by the through hole on pool wall, the water outlet of membrane bioreactor is connected with the water-in of vacuum primingpump by pipeline, the water outlet of vacuum primingpump communicates with the water-in that produces pond by pipeline, the water outlet that produces pond is connected with the air-water mixing pump water-in by pipeline, the inlet mouth of air-water mixing pump is connected with advanced oxidation device by pipeline, the water outlet of air-water mixing pump is connected with the water-in of sterilizing unit by pipeline, and the water outlet of sterilizing unit is middle water reuse outlet.
2. a kind of membrane bioreactor according to claim 1 is combined advanced oxidation processes coking wastewater deep treatment device, and it is characterized in that: described membrane bioreactor is to consist of membrane biological reaction pond, aeration plate, Aeration fan, membrane module, sludge reflux pump, reverse flow valve and microbe colony, the bottom in Aerobic Pond and membrane biological reaction pond is equipped with aeration plate, aeration plate communicates with outside Aeration fan by pipeline, at the bottom of the pond in membrane biological reaction pond, be provided with sewage draining exit, sewage draining exit is connected with the import of sludge reflux pump by blow-off pipe, the sludge reflux pump outlet is connected with an end of two reverse flow valves respectively by pipeline, the other end of two reverse flow valves is connected by the mud mouth at the bottom of pipeline and described anaerobic pond and anoxic pond pond, in the membrane biological reaction pond, be provided with membrane module arranged side by side, the water outlet of membrane module is connected with the water-in of vacuum primingpump by pipeline, in the film biochemical reaction tank, be provided with microbe colony.
3. a kind of membrane bioreactor according to claim 1 is combined advanced oxidation processes coking wastewater deep treatment device, and it is characterized in that: described advanced oxidation device is any one in ozonizer, photocatalytic ozonation device, metal catalytic ozone-oxidizing device or Fenton oxidation tower.
4. a kind of membrane bioreactor according to claim 1 is combined advanced oxidation processes coking wastewater deep treatment device, and it is characterized in that: described sterilizing unit is any one in microwave ultraviolet producer, optical heat radiation sterilizing unit, ultraviolet generator or chlorine dioxide generator.
5. a kind of membrane bioreactor according to claim 1 is combined advanced oxidation processes coking wastewater deep treatment device, it is characterized in that: another outlet in described product pond is connected with the water-in of vacuum primingpump by pipeline, and the water outlet of vacuum primingpump communicates with the film biochemical reaction tank by pipeline.
6. a kind of membrane bioreactor associating advanced oxidation processes coking wastewater deep treatment device according to claim 5 is characterized in that: be provided with film silk backwash chemicals dosing plant on described vacuum primingpump and pipeline that the film biochemical reaction tank communicates.
7. a kind of membrane bioreactor according to claim 2 is combined advanced oxidation processes coking wastewater deep treatment device, and it is characterized in that: described membrane module is comprised of hollow fiber ultrafiltration membrane.
8. according to the described a kind of membrane bioreactor associating advanced oxidation processes coking wastewater deep treatment device of claim 2 or 7, it is characterized in that: described membrane module is immersed in the film biochemical reaction tank.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864264A (en) * | 2014-03-03 | 2014-06-18 | 同济大学 | Water treatment method and equipment of photocatalytic composite membrane bioreactor |
| CN104310712A (en) * | 2014-11-03 | 2015-01-28 | 北京高能时代环境技术股份有限公司 | Treatment method of coal chemical waste water |
| CN105271606A (en) * | 2014-07-16 | 2016-01-27 | 鞍钢股份有限公司 | Coking wastewater treatment method |
| CN105481099A (en) * | 2014-09-19 | 2016-04-13 | 鞍钢股份有限公司 | Treatment method of oil-removed coking wastewater |
| CN105776740A (en) * | 2016-03-23 | 2016-07-20 | 天津派瑞环境工程技术有限公司 | Treatment method and equipment for up-to-standard discharging of vitamin fermentation pharmaceutical wastewater |
| CN106517642A (en) * | 2016-10-31 | 2017-03-22 | 上海明诺环境科技有限公司 | Zero discharge treatment method of wastewater from plant for methanol to aromatic |
| CN107344798A (en) * | 2016-05-06 | 2017-11-14 | 上海宝钢化工有限公司 | A kind of apparatus for treating carbonized waste water and its processing method |
| CN110563275A (en) * | 2019-09-25 | 2019-12-13 | 河北省环境科学研究院 | Method for reducing biological toxicity of coking wastewater |
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2013
- 2013-05-27 CN CN2013202928561U patent/CN203307175U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864264A (en) * | 2014-03-03 | 2014-06-18 | 同济大学 | Water treatment method and equipment of photocatalytic composite membrane bioreactor |
| CN103864264B (en) * | 2014-03-03 | 2015-08-19 | 同济大学 | A kind of water treatment method of photocatalysis composite membrane bio-reactor and equipment |
| CN105271606A (en) * | 2014-07-16 | 2016-01-27 | 鞍钢股份有限公司 | Coking wastewater treatment method |
| CN105481099A (en) * | 2014-09-19 | 2016-04-13 | 鞍钢股份有限公司 | Treatment method of oil-removed coking wastewater |
| CN104310712A (en) * | 2014-11-03 | 2015-01-28 | 北京高能时代环境技术股份有限公司 | Treatment method of coal chemical waste water |
| CN104310712B (en) * | 2014-11-03 | 2016-02-24 | 北京高能时代环境技术股份有限公司 | A kind for the treatment of process of coal chemical industrial waste water |
| CN105776740A (en) * | 2016-03-23 | 2016-07-20 | 天津派瑞环境工程技术有限公司 | Treatment method and equipment for up-to-standard discharging of vitamin fermentation pharmaceutical wastewater |
| CN107344798A (en) * | 2016-05-06 | 2017-11-14 | 上海宝钢化工有限公司 | A kind of apparatus for treating carbonized waste water and its processing method |
| CN106517642A (en) * | 2016-10-31 | 2017-03-22 | 上海明诺环境科技有限公司 | Zero discharge treatment method of wastewater from plant for methanol to aromatic |
| CN110563275A (en) * | 2019-09-25 | 2019-12-13 | 河北省环境科学研究院 | Method for reducing biological toxicity of coking wastewater |
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