CN102276056A - Process for treating coal chemical wastewater by adding active material into activated sludge pool - Google Patents
Process for treating coal chemical wastewater by adding active material into activated sludge pool Download PDFInfo
- Publication number
- CN102276056A CN102276056A CN2011101491810A CN201110149181A CN102276056A CN 102276056 A CN102276056 A CN 102276056A CN 2011101491810 A CN2011101491810 A CN 2011101491810A CN 201110149181 A CN201110149181 A CN 201110149181A CN 102276056 A CN102276056 A CN 102276056A
- Authority
- CN
- China
- Prior art keywords
- waste water
- coal chemical
- activated sludge
- active
- chemical industrial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a process for treating coal chemical wastewater by adding an active material into an activated sludge pool, wherein the active material and biochemical treatment are combined and coordinated to treat the coal chemical wastewater. In the process, the wastewater is introduced to the activated sludge pool in which active coke or active semicoke is added; and macromolecular organic matters and refractory organic matters are effectively removed when the wastewater flows through the active coke or the active semicoke. According to the invention, the problems of operation instability of the activated sludge pool, adsorptivity reduction of an adsorptive material, or long sewage treatment time, high equipment cost and unavailability in fully utilizing the performance of the adsorptive material in the prior art are solved, and the process for treating the coal chemical wastewater, which has the advantages of operation stability, availability of fully utilizing the adsorptive material, high sewage treatment efficiency and low equipment cost, is provided.
Description
Technical field
The present invention relates to a kind of waste water treatment process, specifically a kind of coal chemical industrial waste water treatment process.
Background technology
Coal Chemical Industry is meant with the coal to be raw material, making coal conversion through chemical process is gas, liquid and solid phase prod or work in-process, then further be processed into the industry of chemical industry, energy product, wastewater discharge is very big in this process, and the waste water of Chan Shenging is a kind of chemical oxygen demand COD height, ammonia-nitrogen content height, colourity height and the high organic waste water of turbidity herein.If these pollutents are discharged in the environment, can cause very big harm to ecotope and HUMAN HEALTH, so the processing of coal gasification waste water, at home and abroad receive much concern in the coal chemical industrial waste water process field always.
The technology of handling coal chemical industrial waste water in the prior art generally comprises three steps, is respectively pretreatment process, second-stage treatment method and deep treatment method.Wherein, pretreatment process comprises oil removal, air supporting, precipitation, acidication etc.; The second-stage treatment method comprises the biochemical treatment system based on active sludge, main effect is denitrogenation, remove COD, but contain toxic pollutants such as high density phenols organic pollutant, prussiate in the coal gasification waste water, to the toxic shock action of Sludge System, biochemical water inlet causes problems such as sludge bulking easily, so will be carried out the requirement that the dilution of certain multiple could be satisfied biochemical water inlet; Because it is up to standard that general secondary biochemical water outlet COD and ammonia nitrogen are difficult to, and need carry out advanced treatment, comprises electrochemical process, coagulant sedimentation, advanced oxidation processes, membrane separation process and absorption method etc.
In Chinese patent literature CN101560045A, a kind of coal chemical industrial waste water treatment process is disclosed, comprise coal chemical industrial waste water is carried out pre-treatment by air-floating apparatus, the class reagent that will confusingly pause adds pretreated waste water and carries out secondary treatment, waste water after the secondary treatment is fed the active sludge aeration tank, and the adding active carbon powder carries out advanced treatment in the pond, waste water after the advanced treatment is separated by ultra-filtration membrane, reuse water after obtaining separating, carry out reverse osmosis by the selectivity semi-permeable membranes again, obtain reuse water after the reverse osmosis and carry out promptly finishing behind the evaporative crystallization processing waste water.In this technical scheme, in the active sludge aeration tank, add activity charcoal powder, utilize organism and dissolved oxygen in the activity charcoal powder absorption waste water, but, because gac is difficult for fluidisation, be difficult to select the optimal addn and the optimum activity powdered carbon concentration of activity charcoal powder in the activated sludge tank, the activated sludge tank fluctuation of service; In addition, the mud that produces after biochemical treatment in the aeration tank can stop up the hole of gac, repeatedly utilizes the adsorptive power of back gac obviously to descend.
Disclose a kind of coal chemical industrial waste water treatment process among the Chinese patent literature CN102001789A, coal chemical industrial waste water is fed the adsorption tank that adds sorbing material, larger molecular organics and hardly degraded organic substance are removed in absorption; Waste water after adsorption tank is handled enters the settling pond precipitation, and sorbing material is discharged at the bottom of the pond, and waste water enters biochemical unit and carries out biochemical treatment; Waste water after the biochemical treatment enters settling tank and carries out precipitation process.In this technical scheme, carry out earlier carrying out biochemical treatment after the physical adsorption, two steps have separately solved the problem that activated sludge tank fluctuation of service, biochemical treatment among the CN101560045A influence the activity charcoal powder adsorptive power, but also prolonged the time of sewage disposal, increased equipment cost, gac, activated coke isoreactivity material have only played the effect of physical adsorption simultaneously, still do not maximize the use.
Therefore, in the coal chemical industrial waste water treatment process of prior art, or the absorption property of activated sludge tank fluctuation of service, sorbing material reduces, or the sewage disposal time is long, equipment cost is high, the activity of sorbing material can not make full use of.
Summary of the invention
For this reason, technical problem to be solved by this invention is to overcome in the existing coal chemical industrial waste water treatment process, the absorption property of activated sludge tank fluctuation of service, sorbing material reduces, or the sewage disposal time is long, equipment cost is high, the performance of sorbing material can not make full use of, thereby provides that a kind of stable, sorbing material actively makes full use of, sewage treating efficiency height and the low coal chemical industrial waste water treatment process of equipment cost.
For solving the problems of the technologies described above, a kind of coal chemical industrial waste water treatment process of the present invention, adopt active material and the biochemical treatment associated treatment coal chemical industrial waste water that combines, waste water is fed activated sludge tank, activated coke or active carbocoal have been added in the described activated sludge tank, when described waste water was flowed through the described active sludge that contains activated coke or active carbocoal, the macromole hardly degraded organic substance can and then obtain by active adsorption removing.Active material is meant the sorbing material with specific surface area prosperity or mesopore prosperity.
Before sewage enters the activated sludge tank processing, also comprise pre-treatment step: waste water is fed pretreatment unit, described coal chemical industrial waste water is carried out oil removing, removes the suspended substance processing.
After sewage enters the activated sludge tank processing, also comprise settling step: described waste water after activated sludge tank is handled is fed settler precipitate, described activated coke or active carbocoal separate with waste water with mud, and described activated coke or active carbocoal and mud are discharged at the pond bottom sediments and at the bottom of the pond.
After described precipitation process, also comprise filtration step: described waste water after settler separates is fed filtration unit, and the suspended substance in the waste water obtains removing.
In the described activated coke or active carbocoal and mud, account for the described activated sludge tank that is partly refluxed to of its quality 20% to 100% through discharging at the bottom of the settling tank.
Described pretreatment unit comprises air flotation pool, hydrolysis acidification pool or anaerobic reactor.
Described activated sludge tank comprises ordinary activated sludge aeration tank, list type intermittently activated sludge tank, circulating type active sludge pond or oxidation ditch.
The particle diameter of described activated coke or active carbocoal is 0.047mm to 1.0mm.
The described waste water that enters activated sludge tank is 20000:1 to 10:1 with the quality of described activated coke or active carbocoal than mass ratio.
Described activated coke or the active carbocoal mass concentration in the described waste water that enters activated sludge tank is 0.05g/L to 100g/L.
Technique scheme of the present invention has the following advantages compared to existing technology,
(1) coal chemical industrial waste water treatment process of the present invention, activated coke or active carbocoal are added activated sludge tank, described activated coke and active carbocoal are a kind of porous carbonaceous materials of similar gac, can be that feedstock production forms by brown coal, and be cheap with respect to conventional gac.In addition, gac centering small organic molecule adsorption effect is strong, and activated coke or the prosperity of active carbocoal mesopore, adsorption effect to the macromole Persistent organic pollutants is stronger, increased the residence time of this type organic in Sludge System greatly, at the high characteristics of macromole hardly degraded organic substance ratio in the coal chemical industrial waste water, add activated coke or active carbocoal and have extraordinary effect:
At first, because the existence of activated coke or active carbocoal, organism is attracted to the activated coke surface, has prolonged the residence time of hardly degraded organic substance in activated sludge tank, and microorganism can be decomposed fully organism; Secondly, because activated coke, active carbocoal porous and mesopore and transitional pore proportion are bigger, it is thrown in the activated sludge tank, hole can not stopped up by mud, so adsorptive power, that the promotion organism decomposes isoreactivity is unaffected; Once more, activated coke or active carbocoal are thrown in after the active sludge, and activated coke or active carbocoal surface bioactive improve, and have improved the organic efficient of microbiological degradation.Wherein the activated coke activation degree is higher, and wherein the boring ratio example is big, and the active carbocoal activation degree is low or only pass through carbonization Duan Erwu activation section, and wherein boring ratio example specific activity is burnt low, and activated coke is comparatively preferred.
(2) in the prior art, sewage has the adsorption tank, activated sludge tank, settler of sorbing materials such as activated coke successively through input after, waste water after obtaining handling, when sorbing material and the sewage mass ratio that enters adsorption tank were 10:1-500:1, the sewage after the processing just can reach discharging standards.And active sludge is two independently technique units after the first activated coke, and coal chemical industrial waste water can adsorb and remove the macromole hardly degraded organic substance through behind the absorbing unit, has improved the biodegradability of wastewater treatment; Through the burnt mixture of the water after the activated coke absorption, the process post precipitation is finished the separation of Jiao Shui, and the good biodegradability of supernatant liquor enters in the activated sludge tank, needs the less residence time just can remove remaining organism, thereby makes waste water reach the processing standard;
And coal chemical industrial waste water treatment process of the present invention feeds activated sludge tank with waste water, has added activated coke or active carbocoal in the described activated sludge tank, is a technique unit, and the technology main body is activated sludge tank, i.e. biochemical treatment.Add a certain amount of activated coke or active carbocoal therein, activated coke or active carbocoal carry out physical adsorption to larger molecular organics, hardly degraded organic substance in sludge sump, prolonged the residence time of hardly degraded organic substance in activated sludge tank, make microorganism have time enough that organism is decomposed, activated coke or active carbocoal surface bioactive improve simultaneously, have improved the organic efficient of microbiological degradation.It is simpler that integrated artistic becomes, thereby the adsorptive power of activated coke also improves greatly with burnt amount and reduces greatly, the described waste water that enters activated sludge tank is 20000:1-10:1 with the quality of described activated coke or active carbocoal than scope, when described activated coke or the active carbocoal mass concentration scope in the described waste water that enters activated sludge tank was 0.05g/L-100g/L, the waste water that obtains after precipitation process again can reach country-level A emission standard.Therefore, this technology is not to be the simple superposition of prior art;
And in the application's above-mentioned parameter scope, stable performances such as the absorption property of activated coke or gac, promotion microbiological degradation organism, so activated sludge tank is stable.
(3) coal chemical industrial waste water treatment process of the present invention, described activated coke of discharging at the bottom of settling tank or active carbocoal and a mud part are back to described activated sludge tank, and another part is discharged.In the activated coke and mud of discharging, the activated coke and the mud that account for its quality 20-100% are back to former activated sludge tank; For gac, activated coke, active carbocoal porous and mesopore and transitional pore proportion are bigger, therefore it is thrown in the activated sludge tank, and hole can not stopped up by mud, and the part active sludge after precipitation process can drop into activated sludge tank once more and recycles.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, below according to a particular embodiment of the invention and in conjunction with the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the embodiment schema of coal chemical industrial waste water treatment process of the present invention;
Fig. 2, Fig. 3, Fig. 4, Fig. 5 be coal chemical industrial waste water treatment process of the present invention can conversion the schema of concrete embodiment.
Embodiment
Waste water is fed activated sludge tank, activated coke or active carbocoal have been added in the described activated sludge tank, larger molecular organics, hardly degraded organic substance were effectively removed when described waste water was flowed through described activated coke or active carbocoal, and the particle diameter of described activated coke or active carbocoal is less than 1.0mm; The mass ratio of the described waste water that enters activated sludge tank and described activated coke or active carbocoal is less than 100:1; Described activated coke or the active carbocoal mass concentration in the described waste water that enters activated sludge tank is less than 100g/L.
After this step process, activated coke, active carbocoal carry out physical adsorption to larger molecular organics, hardly degraded organic substance in sludge sump, prolonged the residence time of hardly degraded organic substance in activated sludge tank, make microorganism have time enough that organism is decomposed, activated coke or active carbocoal surface bioactive improve simultaneously, have improved the organic efficient of microbiological degradation.Larger molecular organics, hardly degraded organic substance are effectively removed.
Embodiment 1:
Fig. 2 has provided a concrete embodiment of coal chemical industrial waste water treatment process of the present invention, and described coal chemical industrial waste water is stored in the wastewater equalization pond, and described equalizing tank can make the sewage quality in the pond even, can also adjust the water yield simultaneously.Described activated sludge tank adopts common aeration tank, adopts the combine technology of associated treatment coal chemical industrial waste water of activated coke and biochemical sludge, comprises the steps:
1. the coal chemical industrial waste water in the wastewater equalization pond is fed pretreatment unit, pretreatment unit is an air flotation pool herein, waste water is carried out oil removing, removes suspended substance and handle, improve the biodegradability of waste water, the biodegradability when described coal chemical industrial waste water is flowed through described pretreatment unit in the waste water is improved;
2. the waste water after will handling by pretreatment unit feeds the ordinary activated sludge aeration tank, in the pond, added activated coke, realization is to the efficient removal of COD and ammonia nitrogen, and the mass ratio of described coal chemical industrial waste water and activated coke is less than 100:1, at this value 10000:1; In activated sludge tank, the mass concentration of described activated coke and pool inner water is less than 100g/L, at this value 12g/L; The particle diameter of described activated coke is less than 1.0mm, at this value 0.5mm-0.047mm;
3. the waste water feeding settling tank after will handling by biochemical in the described activated sludge tank and absorbing synergic precipitates, and said active coke powder, mud separate with waste water, and described activated coke and mud are at the pond bottom sediments and give off at the bottom of the pond;
4. will feed sand filter by the waste water of described settling tank and filter, the flow of suspension in this waste water obtains removing when sand filter.
Coal chemical industrial waste water is through after the above-mentioned art breading, water outlet COD is below 50mg/L, COD is meant chemical oxygen demand (COD), refer under certain conditions, when adopting certain strong oxidizer to handle water sample, the oxidant content that is consumed, ammonia-N removal rate is more than 95%, organic clearance is more than 98%, and the waste water after the processing can reach country-level A emission standard.
Embodiment 2:
As embodiment 2 can conversion embodiment, as shown in Figure 3, feed activated sludge tank through described by the waste water after the pretreatment unit processing, described activated sludge tank adopts intermittently activated sludge tank (SBR pond) of list type, in the pond, added active carbocoal, realized efficient removal COD and ammonia nitrogen.The process of the described coal chemical industrial waste water treatment process of present embodiment as shown in Figure 3, its concrete steps are as follows:
1. the coal chemical industrial waste water in the wastewater equalization pond is fed pretreatment unit, pre-treatment unit is a hydrolysis acidification pool herein, waste water is carried out oil removing, removes the suspended substance processing, improve the biodegradability of waste water, the biodegradability when described coal chemical industrial waste water is flowed through described pretreatment unit in the waste water is improved;
2. the waste water after will handling by pretreatment unit feeds the SBR pond, has added active carbocoal in the pond, realizes the efficient removal to COD and ammonia nitrogen, and the mass ratio of described coal chemical industrial waste water and active carbocoal is less than 100:1, at this value 5000:1; In activated sludge tank, the mass concentration of described active carbocoal and pool inner water is less than 100g/L, at this value 12g/L; The particle diameter of described activated coke is less than 1.0mm, at this value 0.075mm;
3. the waste water feeding mechanical accelerating purifying pool after will handling by biochemical in the described activated sludge tank and absorbing synergic precipitates, and said active carbocoal powder, mud separate with waste water, and described active carbocoal and mud are at the pond bottom sediments and give off at the bottom of the pond;
4. will feed sandfiltration pot by the waste water of described settling tank and filter, the flow of suspension in this waste water obtains removing when sand filter.
Coal chemical industrial waste water is through after the above-mentioned art breading, and water outlet COD is below 50mg/L, and ammonia-N removal rate is more than 95%, and organic clearance is more than 98%, and the waste water after the processing can reach country-level A emission standard.
Embodiment 3:
As embodiment 1 can conversion embodiment, as shown in Figure 4, feed activated sludge tank through described by the waste water after the pretreatment unit processing, described activated sludge tank adopts pond, circulating type active sludge pond (CASS), in the pond, added activated coke, realized efficient removal COD and ammonia nitrogen.The process of the described coal chemical industrial waste water treatment process of present embodiment as shown in Figure 4, its concrete steps are as follows:
1. the coal chemical industrial waste water in the wastewater equalization pond is fed pretreatment unit, pretreatment unit is an anaerobic reactor herein, waste water is carried out oil removing, removes suspended substance and handle, improve the biodegradability of waste water, the biodegradability when described coal chemical industrial waste water is flowed through described pretreatment unit in the waste water is improved;
2. the waste water after will handling by pretreatment unit feeds the CASS pond, has added activated coke in the pond, realizes the efficient removal to COD and ammonia nitrogen, and the mass ratio of described coal chemical industrial waste water and activated coke is less than 100:1, at this value 20000:1; In activated sludge tank, the mass concentration of described activated coke and pool inner water is less than 100g/L, at this value 10g/L; The particle diameter of described activated coke is less than 1.0mm, at this value 0.05-0.075mm;
3. the waste water after will handling by biochemical in the described activated sludge tank and absorbing synergic feeds concentration basin and precipitates, said active coke powder, mud separate with waste water, described activated coke and mud are at the pond bottom sediments and give off at the bottom of the pond, in the activated coke and mud of discharging, the activated coke and the mud that account for its quality 20-100% are back to former activated sludge tank, therefore activated coke and mud can reuse, and have reduced the dosage of activated coke;
4. will feed strainer by the waste water of described settling tank and filter, the flow of suspension in this waste water obtains removing when sand filter.
Coal chemical industrial waste water is through after the above-mentioned art breading, and water outlet COD is below 50mg/L, and ammonia-N removal rate is more than 95%, and organic clearance is more than 98%, and the waste water after the processing can reach country-level A emission standard.
Embodiment 4:
As embodiment 1 can conversion embodiment, as shown in Figure 5, feed activated sludge tank through described by the waste water after the pretreatment unit processing, described activated sludge tank adopts oxidation ditch, in the pond, added active carbocoal, realized efficient removal COD and ammonia nitrogen.The process of the described coal chemical industrial waste water treatment process of present embodiment as shown in Figure 5, its concrete steps are as follows:
Coal chemical industrial waste water is through after the above-mentioned art breading, and water outlet COD is below 50mg/L, and ammonia-N removal rate is more than 95%, and organic clearance is more than 98%, and the waste water after the processing can reach country-level A emission standard.
Comparative Examples
Concrete steps are as follows:
Coal chemical industrial waste water is through after the above-mentioned art breading, and water outlet COD is below 50mg/L, and ammonia-N removal rate is 90%, and organic clearance is 93%, satisfies one-level B emission standard substantially.
Coal chemical industrial waste water treatment process of the prior art, coal chemical industrial waste water is carried out pre-treatment by air-floating apparatus, the class reagent that will confusingly pause adds pretreated waste water and carries out secondary treatment, waste water after the secondary treatment is fed the active sludge aeration tank, and the adding active carbon powder carries out advanced treatment in the pond, waste water after the advanced treatment is separated by ultra-filtration membrane, reuse water after obtaining separating, carry out reverse osmosis by the selectivity semi-permeable membranes again, obtain reuse water after the reverse osmosis and carry out promptly finishing behind the evaporative crystallization processing waste water.The waste water that obtains can reach the requirement of reuse.
Comparative Examples is compared with embodiments of the invention, and the addition of gac can only reach country-level B emission standard greater than the addition of activated coke or active carbocoal; Comparative Examples compared with prior art, but the treatment step that has all added the gac Comparative Examples is more simple, the sewage after handling in the Comparative Examples has reached national discharging primary standard, also can recycle; Therefore the simple and good sewage processing effect of the coal chemical industrial waste water treatment process steps that adds active material in activated sludge tank among the present invention utilizes activated coke or active carbocoal to combine with biochemical treatment in this technology, has reached beyond thought technique effect.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the invention.
Claims (10)
1. coal chemical industrial waste water treatment process that adds active material in activated sludge tank adopts active material and the biochemical treatment associated treatment coal chemical industrial waste water that combines, and it is characterized in that:
Waste water is fed activated sludge tank, added activated coke or active carbocoal in the described activated sludge tank, when described waste water was flowed through the described active sludge that contains activated coke or active carbocoal, the macromole hardly degraded organic substance can and then obtain by active adsorption removing.
2. coal chemical industrial waste water treatment process according to claim 1 is characterized in that: before sewage enters the activated sludge tank processing, also comprise pre-treatment step:
Waste water is fed pretreatment unit, described coal chemical industrial waste water is carried out oil removing, removes the suspended substance processing.
3. coal chemical industrial waste water treatment process according to claim 1 and 2 is characterized in that: after sewage enters the activated sludge tank processing, also comprise settling step:
Described waste water after activated sludge tank is handled is fed settler precipitate, described activated coke or active carbocoal separate with waste water with active sludge, and described activated coke or active carbocoal and mud are discharged at the pond bottom sediments and at the bottom of the pond.
4. coal chemical industrial waste water treatment process according to claim 3 is characterized in that: after described precipitation process, also comprise filtration step:
Described waste water after settler separates is fed filtration unit, and the suspended substance in the waste water obtains removing.
5. according to claim 3 or 4 described coal chemical industrial waste water treatment process, it is characterized in that:
In the described activated coke or active carbocoal and mud, account for the described activated sludge tank that is partly refluxed to of its quality 20% to 100% through discharging at the bottom of the settling tank.
6. coal chemical industrial waste water treatment process according to claim 2 is characterized in that: described pretreatment unit is air flotation pool, hydrolysis acidification pool or anaerobic reactor.
7. coal chemical industrial waste water treatment process according to claim 1 is characterized in that: described activated sludge tank is ordinary activated sludge aeration tank, list type intermittently activated sludge tank, circulating type active sludge pond or oxidation ditch.
8. according to any described coal chemical industrial waste water treatment process in the claim 1 to 9, it is characterized in that: the particle diameter of described activated coke or active carbocoal is 0.047mm to 1.0mm.
9. coal chemical industrial waste water treatment process according to claim 10 is characterized in that: describedly enter the waste water of activated sludge tank and the mass ratio of described activated coke or active carbocoal is 20000:1 to 10:1.
10. coal chemical industrial waste water treatment process according to claim 10 is characterized in that: described activated coke or the active carbocoal mass concentration in the described waste water that enters activated sludge tank is 0.05g/L to 100g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101491810A CN102276056B (en) | 2011-06-03 | 2011-06-03 | Process for treating coal chemical wastewater by adding active material into activated sludge pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101491810A CN102276056B (en) | 2011-06-03 | 2011-06-03 | Process for treating coal chemical wastewater by adding active material into activated sludge pool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102276056A true CN102276056A (en) | 2011-12-14 |
| CN102276056B CN102276056B (en) | 2013-02-13 |
Family
ID=45101856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101491810A Active CN102276056B (en) | 2011-06-03 | 2011-06-03 | Process for treating coal chemical wastewater by adding active material into activated sludge pool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102276056B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058455A (en) * | 2012-12-25 | 2013-04-24 | 北京国电富通科技发展有限责任公司 | System for treating printing and dyeing wastewater with activated coke adopted and process thereof |
| CN104229985A (en) * | 2014-10-17 | 2014-12-24 | 苏州新协力环保科技有限公司 | Activated sludge purifying and processing method for wastewater |
| CN106746158A (en) * | 2015-11-19 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of coal water slurry gasification process produces the deepness denitrogenation method for treating of waste water |
| CN107226580A (en) * | 2016-08-31 | 2017-10-03 | 无锡市新都环保科技有限公司 | A kind of system and processing method of efficient process oily waste water |
| CN109179648A (en) * | 2018-09-18 | 2019-01-11 | 上海晶宇环境工程股份有限公司 | A kind of coal chemical industry oil product synthetic wastewater oil removing process and its special equipment |
| CN109626728A (en) * | 2018-12-26 | 2019-04-16 | 东华大学 | A kind of industrial wastewater organic carbon and interior utilization process |
| CN109956553A (en) * | 2017-12-22 | 2019-07-02 | 株式会社久保田 | A kind of wastewater treatment method and device that selective absorption is combined with biological treatment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475258A (en) * | 2008-12-31 | 2009-07-08 | 南京中电联环保股份有限公司 | Bioactive coke method for processing coking wastewater |
| CN101921046A (en) * | 2010-02-08 | 2010-12-22 | 北京大学 | New process for treating coal gasification wastewater with active coke |
| CN102001789A (en) * | 2010-11-15 | 2011-04-06 | 北京国能普华环保工程技术有限公司 | Process for treating coal chemical waste water |
| CN102070277A (en) * | 2010-11-15 | 2011-05-25 | 北京国能普华环保工程技术有限公司 | Coal gasification wastewater treatment process |
-
2011
- 2011-06-03 CN CN2011101491810A patent/CN102276056B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475258A (en) * | 2008-12-31 | 2009-07-08 | 南京中电联环保股份有限公司 | Bioactive coke method for processing coking wastewater |
| CN101921046A (en) * | 2010-02-08 | 2010-12-22 | 北京大学 | New process for treating coal gasification wastewater with active coke |
| CN102001789A (en) * | 2010-11-15 | 2011-04-06 | 北京国能普华环保工程技术有限公司 | Process for treating coal chemical waste water |
| CN102070277A (en) * | 2010-11-15 | 2011-05-25 | 北京国能普华环保工程技术有限公司 | Coal gasification wastewater treatment process |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058455A (en) * | 2012-12-25 | 2013-04-24 | 北京国电富通科技发展有限责任公司 | System for treating printing and dyeing wastewater with activated coke adopted and process thereof |
| CN103058455B (en) * | 2012-12-25 | 2014-12-17 | 北京国电富通科技发展有限责任公司 | System for treating printing and dyeing wastewater with activated coke adopted and process thereof |
| CN104229985A (en) * | 2014-10-17 | 2014-12-24 | 苏州新协力环保科技有限公司 | Activated sludge purifying and processing method for wastewater |
| CN106746158A (en) * | 2015-11-19 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of coal water slurry gasification process produces the deepness denitrogenation method for treating of waste water |
| CN106746158B (en) * | 2015-11-19 | 2020-09-11 | 中国石油化工股份有限公司 | Advanced denitrification treatment method for wastewater generated in coal water slurry gasification process |
| CN107226580A (en) * | 2016-08-31 | 2017-10-03 | 无锡市新都环保科技有限公司 | A kind of system and processing method of efficient process oily waste water |
| CN109956553A (en) * | 2017-12-22 | 2019-07-02 | 株式会社久保田 | A kind of wastewater treatment method and device that selective absorption is combined with biological treatment |
| CN109179648A (en) * | 2018-09-18 | 2019-01-11 | 上海晶宇环境工程股份有限公司 | A kind of coal chemical industry oil product synthetic wastewater oil removing process and its special equipment |
| CN109626728A (en) * | 2018-12-26 | 2019-04-16 | 东华大学 | A kind of industrial wastewater organic carbon and interior utilization process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102276056B (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102001789B (en) | Process for treating coal chemical waste water | |
| Zhu et al. | Removal of selected nitrogenous heterocyclic compounds in biologically pretreated coal gasification wastewater (BPCGW) using the catalytic ozonation process combined with the two-stage membrane bioreactor (MBR) | |
| CN102276056B (en) | Process for treating coal chemical wastewater by adding active material into activated sludge pool | |
| CN102070277B (en) | Coal gasification wastewater treatment process | |
| CN103771650B (en) | A kind for the treatment of process of coal gasification waste water | |
| CN101560045A (en) | Coal chemical wastewater treating technique | |
| CN107235609B (en) | A kind of deep treatment method of compound sewage | |
| CN103288310B (en) | Slack coal pressure gasification wastewater treatment method and treatment system as well as application | |
| RU2351551C1 (en) | Method for purification of sewage from organic compounds, nitrogen and phosphorus | |
| CN103482796B (en) | A kind for the treatment of process of organic wastewater with difficult degradation thereby and treatment system and application | |
| CN106219885B (en) | Coking waste water treatment method based on jet stream biochemical reactor | |
| CN105481168A (en) | Coal gasification sewage comprehensive treatment method | |
| US20200001208A1 (en) | Process and System for Treating Waste Water | |
| CN105439370B (en) | A kind of process of combination BAF processing refinery sewage | |
| KR20180101572A (en) | Wastewater treatment process and facility | |
| CN108929002A (en) | A kind of reverse osmosis thick water treatment method of landfill leachate | |
| CN103496825A (en) | Three-phase biological fluidized bed A/O/O process for treating coking wastewater | |
| CN103241902B (en) | A kind of biological treatment of waste water and biological treatment system using the technique | |
| CN104628223A (en) | Strengthened biological processing method of wastewater generated in natural gas production from coal | |
| CN109516589B (en) | Process for treating coking wastewater by membrane method | |
| CN102211839A (en) | Method for treating coal chemical wastewater | |
| CN107082521B (en) | Pretreatment system for treating high-salt high-concentration organic wastewater | |
| CN108314268A (en) | The carrier for embedding press filtration sludge is combined the method and system of processing landfill leachate with fluid bed | |
| Paritosh et al. | Biochar mediated high-rate anaerobic bioreactors: A critical review on high-strength wastewater treatment and management | |
| CN205473238U (en) | Get rid of high device including COD among salt industrial waste water and ammonia nitrogen in step |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |