CN104496119A - Deep treatment method and device of coking wastewater - Google Patents
Deep treatment method and device of coking wastewater Download PDFInfo
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- CN104496119A CN104496119A CN201410780147.7A CN201410780147A CN104496119A CN 104496119 A CN104496119 A CN 104496119A CN 201410780147 A CN201410780147 A CN 201410780147A CN 104496119 A CN104496119 A CN 104496119A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
Abstract
The invention discloses a deep treatment method of coking wastewater. The method comprises the following steps of firstly adjusting pH of wastewater and filtering; reacting in a first-stage ozone reaction tower and a second-stage ozone reaction tower; carrying out ozonolysis in an enclosed intermediate water tank; treating in an aeration biological filtering tank; and introducing non-decomposed ozone into a tail gas absorber or destroyer. A treatment device mainly comprises a mixing sedimentation tank, the first-stage ozone reaction tower, the second-stage ozone reaction tower, the aeration biological filtering tank and conveying pipes, wherein the conveying pipe between the mixing sedimentation tank and the first-stage ozone reaction tower is connected with a multi-medium filter; and the conveying pipe between the second-stage ozone reaction tower and the aeration biological filtering tank is connected with the enclosed intermediate water tank and the tail gas absorber or destroyer is connected with two ozone reaction towers and the enclosed intermediate water tank. By combining ozone catalytic ozonation and the aeration biological filtering tank, non-biodegradable organic substances in wastewater are oxidized by virtue of ozone and mineralized or partially oxidized into easily degradable small molecular organic substances and the small molecular organic substances can be subjected to subsequent treatment by virtue of cheap organisms in the aeration biological filtering tank.
Description
Technical field
The present invention relates to a kind for the treatment of process and treatment unit of waste water, belong to a kind of advanced treatment method for carbonization wastewater and device particularly.
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 be difficult to biological degradation containing the heterocycles such as phenols, naphthalene, pyridine, quinoline and polycyclc aromatic compound (PAHS), these materials can produce long-range effects to environment, and part studiedly turns out to be carcinogenic substance, ammonia nitrogen in high density has very strong restraining effect to microorganism active in addition, and Nitrogen removal effect is not good.At present, the process of coking chemical waste water generally adopts the bioremediation based on A/O or biological reinforced technique such as A/O/O, A/A/O, O/A/O etc. after A/O process modification, often coagulating kinetics is aided with after bioremediation, reach emission standard requirement reluctantly, in addition, due to advanced treatment somewhat expensive, domestic many coke-oven plants are made to hang back, so most coking chemical waste water has just directly discharged after second-stage treatment.But though waste water is through above-mentioned process, wherein poisonous and harmful substances (prussiate, COD and heterogeneous ring compound etc.) is still retained more, does not reach the emission standard that country allows.
" coking chemistry emission of industrial pollutants standard " (GB16171-2012) of country's issuing and implementation in 2012 requires the emission request of existing coal chemical enterprise execution table 2 standard in 1 day January in 2015, wherein require in table 2 that COD emission concentration is less than 80mg/L, and the biochemical processing process that current coking industry is generally taked is owing to can't reach the level of water outlet COD≤80mg/L by the restriction of technique itself, therefore, under huge environmental protection pressure, coal chemical enterprise must take suitable advanced treatment mode.Several further treatment technique of current most study have microwave reaction+Fenton reagent oxidation technology, coagulation+active carbon adsorption technology, membrane technique, high-level oxidation technology (combination process of technology and above-mentioned technology) etc., and these technology major parts all rest on lab scale and the pilot scale research in laboratory; In addition, part coal chemical enterprise is also had to go up the advanced treatment apparatus of coking chemical waste water, as the ultrafiltration reverse osmosis device of Baosteel, the advanced oxidation device etc. of Anshan iron and steel plant.No matter the technology of laboratory technique or mass-producing application, though all still there is as higher in ton water cost, coking chemical waste water the deficiency such as can not to recycle through advanced treatment.
Through retrieval, Chinese Patent Application No. is the document of CN201010117965.0, it discloses a kind of recycling processing system of coking chemical waste water, it comprises membrane bioreactor (MBR), O3 contacted oxidation process, charcoal absorption process, reverse-osmosis treated.Coking chemical waste water after pre-treatment, A/O biochemical treatment, enters MBR, and MBR produces water through O3 contacted oxidation process, finally by the coking chemical waste water after charcoal absorption and reverse-osmosis treated, can meet and produce net circulating water make up water water quality requirement.The method takes ozone Oxidation Treatment equally, and by couplings such as ozone oxidation and membrane bioreactor, charcoal absorption and reverse osmosiss, this technique not only technical process is longer, and it is high to implement processing cost, is also difficult to large-scale application.
In addition, Chinese Patent Application No. is the document of CN201010527008.5, it discloses a kind of coking advanced waste treatment system, primarily of ozonizer, O3 catalytic oxidation reactor, gas-liquid separation device, bumper post, biological activated carbon reactor, device for absorbing tail gas composition, O3 catalytic oxidation reactor is three sections of repeating structures, each section of repeating structure is divided into again three segments, is respectively Ozone Absorption section, beds and catalyst reaction section from the bottom to top.Utilize three sections of stacked systems to enhance the problem of ozone mass transfer in the solution, improve the utilization ratio of ozone; But do not do further process in detail for carrying the toxic action etc. of deliquescent ozone to biological activated carbon reactor microorganism in a large amount of suspended substance and water in routine biochemistry section water outlet in reality.
Summary of the invention
The deficiency that object of the present invention exists for prior art, there is provided a kind of by adopting combination process and the device of catalytic ozonation and BAF coupling, utilizing in ozone oxidation waste water cannot biodegradable organism, its mineralising or partial oxidation are generated the small organic molecule of readily biodegradable, cheap microorganism is utilized to carry out subsequent disposal in BAF, thus advanced treatment expense is reduced, environmental pollution and the body harm to operator can not be there is; The present invention is also and is that the advanced treatment of coking chemical waste water provides an economy, efficiently advanced treatment process and device.
Realize the measure of above-mentioned purpose:
The method of coking wastewater deep treatment, its step:
1) first the waste water ph after routine biochemistry and coagulating treatment is adjusted to 7 ~ 10, after enter more medium filter and filter;
2) enter one-level ozone reaction tower through the waste water of multi-medium filtering to react, in reaction tower, ozone dosage is 50 ~ 100mg/L waste water, and hydraulic detention time controls at 20 ~ 30min;
3) water outlet of one-level ozone reaction tower enters secondary ozone reaction tower and reacts, and in reaction tower, ozone dosage is 0 ~ 50 mg/L waste water, and hydraulic detention time controls at 15 ~ 25min;
4) after secondary ozone reaction tower, waste water is introduced closed intermediate pool and is carried out ozone decomposed, and makes the hydraulic retention 30 ~ 60min of waste water in closed intermediate pool;
5) enter biological aerated filter pond through the closed intermediate pool waste water carried out after ozone decomposed and carry out conventional processing;
6) ozone decomposed in closed intermediate pool is introduced in tail gas absorption or destructor by ozone discharge tube.
Coking wastewater deep treatment device, transfer lime primarily of mixed heavy pond, the one-level ozone reaction tower be connected with mixed heavy pond, the secondary ozone reaction tower be connected with one-level ozone reaction tower, the biological aerated filter pond be connected with secondary ozone reaction tower, connecting components forms, and it is: on mixed heavy transfer lime between pond and one-level ozone reaction tower, be connected with more medium filter; The transfer lime in secondary ozone reaction tower and biological aerated filter pond is connected with closed intermediate pool; The remaining tail gas absorption be connected by ozone tail gas pipe with two ozone reaction towers and closed intermediate pool or breaking plant.
It is: described more medium filter is by filter body, the waste water inlet being arranged on filter body upper end, be connected to relief outlet and the back flushing tracheae of filter body bottom, be laid on the multi-medium filtering bed of material in filter body and be connected to the external vent valve composition of filter head housings.
It is: described closed intermediate pool is gallery shape.
It is: the haydite that described plurality of filter media is the coke of granularity 0.5 ~ 2mm, granularity is 0.5 ~ 2mm hard coal, granularity is 3 ~ 6mm, granularity are the quartz sand of 4 ~ 10mm.
The present invention compared with prior art, its feature:
(1) its technique and apparatus system reasonable in design, the discharge liquid after the cheap process of running cost meets standard-required, solves the difficult problem in coking wastewater deep treatment and reuse, has very strong engineer applied and is worth.
(2) setting of this technique and device front end more medium filter, carries out safety assurance to subsequent catalyst oxidation; To the pH regulator to 7 of waste water ~ 9 before more medium filter, the efficiency of follow-up ozone oxidation can be made to improve; By arranging gallery type middle tank after catalyzed oxidation tower, effectively can reduce the concentration of solvability ozone in waste water, safe handling being carried out to follow-up BAF and provides guarantee.
(3) each device sealing that exists of ozone, the laggard destruction system of exhaust collection, the ozone avoiding dissipation is to the potential risk of operator's unsafe factor and health risk.
Accompanying drawing explanation
Fig. 1 is coking wastewater deep treatment apparatus structure schematic diagram of the present invention;
Fig. 2 is the schematic diagram of more medium filter in Fig. 1;
In figure: 1-mixed heavy pond, 2-one-level ozone reaction tower, 3-secondary ozone reaction tower, 4-biological aerated filter pond, 5-tail gas absorption or destructor, 6-transfer lime, 7-more medium filter, 8-closed intermediate pool, 9-thief hole, 10-filter shell, 11-waste water inlet, 12-back flushing tracheae, 13-plurality of filter media layer, 14-vent valve, 15-ozone tail gas pipe.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Deep treatment method of the present invention all adopts the apparatus for treating carbonized waste water of structure as described below:
Coking wastewater deep treatment device, form primarily of the transfer lime 6 primarily of mixed heavy pond 1, the one-level ozone reaction tower 2 be connected with mixed heavy pond 1, the secondary ozone reaction tower 3 be connected with one-level ozone reaction tower 2, the biological aerated filter pond 4 be connected with secondary ozone reaction tower 3, connecting components, it is connected with more medium filter 7 on mixed heavy transfer lime 6 between pond 1 and one-level ozone reaction tower 2; Secondary ozone reaction tower 3 with the transfer lime 6 in biological aerated filter pond 4 are connected with closed intermediate pool 8, and closed intermediate pool 8 is gallery shape; The remaining tail gas absorption be connected by ozone tail gas pipe 15 with one-level ozone reaction tower 2 and secondary ozone reaction tower 3 and closed intermediate pool or breaking plant 5.Separately also be provided with thief hole 9 at the exit end in closed pond 8.
Described more medium filter 7 is by filter body 10, the waste water inlet 11 being arranged on filter body 10 upper end, be connected to relief outlet and the back flushing tracheae 12 of filter body 10 bottom, be laid on the multi-medium filtering bed of material 13 in filter body 10 and the vent valve 14 be connected to outside filter body 10 forms.
The described plurality of filter media bed of material 13 is served as reasons: the haydite that granularity is the coke of 0.5 ~ 2mm, granularity is 0.5 ~ 2mm hard coal, granularity is 3 ~ 6mm, granularity are the quartz sand composition of 4 ~ 10mm, and the laying of its plurality of filter media bed of material 13 is carried out from big to small from bottom to top according to granularity.
The each embodiment of method of coking wastewater deep treatment:
Embodiment 1
The method of coking wastewater deep treatment, its step:
1) waste water ph after routine biochemistry and coagulating treatment is regulated 7, after enter more medium filter 7 and filter;
2) waste water after more medium filter 7 filters enters one-level ozone reaction tower 2, and adds ozone according to 50mg/ L waste water, stirs and makes hydraulic detention time at 21min, waste water and ozone are fully reacted;
3) waste water through one-level ozone reaction tower 2 enters secondary ozone reaction tower 3, is not adding under ozone, stirs and makes hydraulic detention time be 19min, waste water and ozone are fully reacted again;
4) the closed intermediate pool 8 that the waste water after secondary ozone reaction tower 3 processes enters gallery shape carries out ozone decomposed, and makes waste water hydraulic detention time within it be 35min;
5) waste water after the closed intermediate pool 8 of gallery shape carries out ozone decomposed enters biological aerated filter pond 4 and carries out conventional processing;
6) then by ozone tail gas pipe 15, remaining tail gas absorption or breaking plant 5 are entered for the ozone decomposed in biological aerated filter pond 4 to carry out absorbing or destroying eliminating ozone.
After testing, the ozone content entering biological aerated filter pond 4 is only 0.6ppm, thus enhances the safety in production in biological aerated filter pond 4, and the health for operator provides useful guarantee.
Embodiment 2
The method of coking wastewater deep treatment, its step:
1) waste water ph after routine biochemistry and coagulating treatment is adjusted to 8, after enter more medium filter 7 and filter;
2) waste water after more medium filter 7 filters enters one-level ozone reaction tower 2, and adds ozone according to 60mg/L waste water, stirs and makes hydraulic detention time be 26min, waste water and ozone are fully reacted;
3) waste water through one-level ozone reaction tower 2 enters secondary ozone reaction tower 3, and adds ozone according to 10mg/L waste water, stirs and makes hydraulic detention time be 15min, waste water and ozone are fully reacted again;
4) the closed intermediate pool 8 that the waste water after secondary ozone reaction tower 3 processes enters gallery shape carries out ozone decomposed, and makes waste water hydraulic detention time within it be 40min;
5) waste water after the closed intermediate pool 8 of gallery shape carries out ozone decomposed enters biological aerated filter pond 4 and carries out conventional processing;
6) then by ozone tail gas pipe 15, remaining tail gas absorption or breaking plant 5 are entered for the ozone decomposed in biological aerated filter pond 4 to carry out absorbing or destroying eliminating ozone.
After testing, the ozone content entering biological aerated filter pond 4 is only 0.7ppm, thus enhances the safety in production in biological aerated filter pond 4, and the health for operator provides useful guarantee.
Embodiment 3
The method of coking wastewater deep treatment, its step:
1) waste water ph after routine biochemistry and coagulating treatment is adjusted to 8.5, enters more medium filter 7 and filter;
2) waste water after more medium filter 7 filters enters one-level ozone reaction tower 2, and adds ozone according to 70mg/L waste water, stirs and makes hydraulic detention time be 30min, waste water and ozone are fully reacted;
3) waste water through one-level ozone reaction tower 2 enters secondary ozone reaction tower 3, and adds ozone according to 20mg/L waste water, stirs and makes hydraulic detention time be 21min, waste water and ozone are fully reacted again;
4) the closed intermediate pool 8 that the waste water after secondary ozone reaction tower 3 processes enters gallery shape carries out ozone decomposed, and makes waste water hydraulic detention time within it be 45min;
5) waste water after the closed intermediate pool 8 of gallery shape carries out ozone decomposed enters biological aerated filter pond 4 and carries out conventional processing;
6) then by ozone tail gas pipe 15, remaining tail gas absorption or breaking plant 5 are entered for the ozone decomposed in biological aerated filter pond 4 to carry out absorbing or destroying eliminating ozone.
After testing, the ozone content entering biological aerated filter pond 4 is only 0.8ppm, thus enhances the safety in production in biological aerated filter pond 4, and the health for operator provides useful guarantee.
Embodiment 4
The method of coking wastewater deep treatment, its step:
1) waste water ph after routine biochemistry and coagulating treatment is adjusted to 9, after enter more medium filter 7 and filter;
2) waste water after more medium filter 7 filters enters one-level ozone reaction tower 2, and adds ozone according to 80mg/L waste water, stirs and makes hydraulic detention time be 28min, waste water and ozone are fully reacted;
3) waste water through one-level ozone reaction tower 2 enters secondary ozone reaction tower 3, and adds ozone according to 30mg/L waste water, stirs and makes hydraulic detention time be 25min, waste water and ozone are fully reacted again;
4) the closed intermediate pool 8 that the waste water after secondary ozone reaction tower 3 processes enters gallery shape carries out ozone decomposed, and makes waste water hydraulic detention time within it be 50min;
5) waste water after the closed intermediate pool 8 of gallery shape carries out ozone decomposed enters biological aerated filter pond 4 and carries out conventional processing;
6) then by ozone tail gas pipe 15, remaining tail gas absorption or breaking plant 5 are entered for the ozone decomposed in biological aerated filter pond 4 to carry out absorbing or destroying eliminating ozone.
After testing, the ozone content entering biological aerated filter pond 4 is only 1.0ppm, thus enhances the safety in production in biological aerated filter pond 4, and the health for operator provides useful guarantee.
Embodiment 5
The method of coking wastewater deep treatment, its step:
1) waste water ph after routine biochemistry and coagulating treatment is adjusted to 10, after enter more medium filter 7 and filter;
2) waste water after more medium filter 7 filters enters one-level ozone reaction tower 2, and adds ozone according to 100mg/L waste water, stirs and makes hydraulic detention time be 26min, waste water and ozone are fully reacted;
3) waste water through one-level ozone reaction tower 2 enters secondary ozone reaction tower 3, and adds ozone according to 40mg/L waste water, stirs and makes hydraulic detention time be 25min, waste water and ozone are fully reacted again;
4) the closed intermediate pool 8 that the waste water after secondary ozone reaction tower 3 processes enters gallery shape carries out ozone decomposed, and makes waste water hydraulic detention time within it be 60min;
5) waste water after the closed intermediate pool 8 of gallery shape carries out ozone decomposed enters biological aerated filter pond 4 and carries out conventional processing;
6) then by ozone tail gas pipe 15, remaining tail gas absorption or breaking plant 5 are entered for the ozone decomposed in biological aerated filter pond 4 to carry out absorbing or destroying eliminating ozone.
After testing, the ozone content entering biological aerated filter pond 4 is only 0.95ppm, thus enhances the safety in production in biological aerated filter pond 4, and the health for operator provides useful guarantee.
When the manometric reflecting value on BAF 4 inlet pipeline 6 is excessive, then the conventional back-purge system that starts carries out rinsing.
Claims (5)
1. the method for coking wastewater deep treatment, its step:
1) first the waste water ph after routine biochemistry and coagulating treatment is adjusted to 7 ~ 10, after enter more medium filter and filter;
2) enter one-level ozone reaction tower through the waste water of multi-medium filtering to react, in reaction tower, ozone dosage is 50 ~ 100mg/L waste water, and hydraulic detention time controls at 20 ~ 30min;
3) water outlet of one-level ozone reaction tower enters secondary ozone reaction tower and reacts, and in reaction tower, ozone dosage is 0 ~ 50 mg/L waste water, and hydraulic detention time controls at 15 ~ 25min;
4) after secondary ozone reaction tower, waste water is introduced closed intermediate pool and is carried out ozone decomposed, and makes the hydraulic retention 30 ~ 60min of waste water in closed intermediate pool;
5) enter biological aerated filter pond through the closed intermediate pool waste water carried out after ozone decomposed and carry out conventional processing;
6) ozone decomposed in closed intermediate pool is introduced in tail gas absorption or destructor by ozone discharge tube.
2. coking wastewater deep treatment device, transfer lime primarily of mixed heavy pond, the one-level ozone reaction tower be connected with mixed heavy pond, the secondary ozone reaction tower be connected with one-level ozone reaction tower, the biological aerated filter pond be connected with secondary ozone reaction tower, connecting components forms, and it is characterized in that: on mixed heavy transfer lime between pond and one-level ozone reaction tower, be connected with more medium filter; The transfer lime in secondary ozone reaction tower and biological aerated filter pond is connected with closed intermediate pool; The remaining tail gas absorption be connected by ozone tail gas pipe with two ozone reaction towers and closed intermediate pool or breaking plant.
3. coking wastewater deep treatment device as claimed in claim 2, it is characterized in that: described more medium filter is by filter body, the waste water inlet being arranged on filter body upper end, be connected to relief outlet and the back flushing tracheae of filter body bottom, be laid on the multi-medium filtering bed of material in filter body and be connected to the external vent valve composition of filter head housings.
4. coking wastewater deep treatment device as claimed in claim 2, is characterized in that: described closed intermediate pool is gallery shape.
5. coking wastewater deep treatment device as claimed in claim 2, is characterized in that: the haydite that described plurality of filter media is the coke of granularity 0.5 ~ 2mm, granularity is 0.5 ~ 2mm hard coal, granularity is 3 ~ 6mm, granularity are the quartz sand of 4 ~ 10mm.
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| CN201410780147.7A CN104496119A (en) | 2014-12-17 | 2014-12-17 | Deep treatment method and device of coking wastewater |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876403A (en) * | 2015-06-11 | 2015-09-02 | 武汉钢铁(集团)公司 | Process and device for advanced treatment and reuse of coking wastewater |
| CN104926034A (en) * | 2015-06-11 | 2015-09-23 | 武汉钢铁(集团)公司 | Technology and device for treating coking wastewater through ozone catalytic oxidation combined biofilter |
| CN105254132A (en) * | 2015-11-16 | 2016-01-20 | 姜雪 | Method for treating degradation-resistant sewage through advanced oxidation |
| CN105502814A (en) * | 2015-12-09 | 2016-04-20 | 武汉钢铁(集团)公司 | Ozone catalytic oxidation combined biofilter deep processing coking wastewater process and device |
| CN105621809A (en) * | 2016-02-19 | 2016-06-01 | 博天环境集团股份有限公司 | Treatment method of shale gas fracturing flowback liquid |
| CN108409046A (en) * | 2018-04-16 | 2018-08-17 | 中节能工程技术研究院有限公司 | A kind of wastewater treatment equipment and method |
| CN108408976A (en) * | 2018-04-09 | 2018-08-17 | 北京天地人环保科技有限公司 | A kind of organic wastewater catalytic ozonation processing system and method |
| CN109231715A (en) * | 2018-11-09 | 2019-01-18 | 鞍钢股份有限公司 | A method of processing chemical industry distilled ammonia wastewater |
| CN109399856A (en) * | 2017-08-18 | 2019-03-01 | 中国科学院大连化学物理研究所 | A kind of semi-coke wastewater Zero discharge treatment method based on catalytic ozonation |
| CN109626743A (en) * | 2019-01-09 | 2019-04-16 | 北京林业大学 | A kind of coking waste water treatment method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876403A (en) * | 2015-06-11 | 2015-09-02 | 武汉钢铁(集团)公司 | Process and device for advanced treatment and reuse of coking wastewater |
| CN104926034A (en) * | 2015-06-11 | 2015-09-23 | 武汉钢铁(集团)公司 | Technology and device for treating coking wastewater through ozone catalytic oxidation combined biofilter |
| CN105254132A (en) * | 2015-11-16 | 2016-01-20 | 姜雪 | Method for treating degradation-resistant sewage through advanced oxidation |
| CN105502814A (en) * | 2015-12-09 | 2016-04-20 | 武汉钢铁(集团)公司 | Ozone catalytic oxidation combined biofilter deep processing coking wastewater process and device |
| CN105621809A (en) * | 2016-02-19 | 2016-06-01 | 博天环境集团股份有限公司 | Treatment method of shale gas fracturing flowback liquid |
| CN105621809B (en) * | 2016-02-19 | 2018-09-14 | 博天环境集团股份有限公司 | A kind of processing method of shale gas fracturing outlet liquid |
| CN109399856A (en) * | 2017-08-18 | 2019-03-01 | 中国科学院大连化学物理研究所 | A kind of semi-coke wastewater Zero discharge treatment method based on catalytic ozonation |
| CN108408976A (en) * | 2018-04-09 | 2018-08-17 | 北京天地人环保科技有限公司 | A kind of organic wastewater catalytic ozonation processing system and method |
| CN108409046A (en) * | 2018-04-16 | 2018-08-17 | 中节能工程技术研究院有限公司 | A kind of wastewater treatment equipment and method |
| CN109231715A (en) * | 2018-11-09 | 2019-01-18 | 鞍钢股份有限公司 | A method of processing chemical industry distilled ammonia wastewater |
| CN109626743A (en) * | 2019-01-09 | 2019-04-16 | 北京林业大学 | A kind of coking waste water treatment method |
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