CN1544361A - Concentration and separation of activated carbon - biological regeneration sewage treatment equipment and method - Google Patents
Concentration and separation of activated carbon - biological regeneration sewage treatment equipment and method Download PDFInfo
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- CN1544361A CN1544361A CNA2003101051178A CN200310105117A CN1544361A CN 1544361 A CN1544361 A CN 1544361A CN A2003101051178 A CNA2003101051178 A CN A2003101051178A CN 200310105117 A CN200310105117 A CN 200310105117A CN 1544361 A CN1544361 A CN 1544361A
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- 238000011069 regeneration method Methods 0.000 title claims abstract description 73
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 239000010865 sewage Substances 0.000 title claims abstract description 63
- 230000008929 regeneration Effects 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000000926 separation method Methods 0.000 title claims 5
- 238000001179 sorption measurement Methods 0.000 claims abstract description 22
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 15
- 231100000719 pollutant Toxicity 0.000 claims abstract description 15
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 239000007788 liquid Substances 0.000 claims description 27
- 239000000945 filler Substances 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 238000004062 sedimentation Methods 0.000 claims description 5
- 235000015097 nutrients Nutrition 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 230000015271 coagulation Effects 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 238000010992 reflux Methods 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- 238000002360 preparation method Methods 0.000 claims 2
- 239000012295 chemical reaction liquid Substances 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 239000010802 sludge Substances 0.000 claims 1
- 235000016709 nutrition Nutrition 0.000 abstract description 15
- 230000035764 nutrition Effects 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 10
- 239000002351 wastewater Substances 0.000 abstract description 8
- 239000005416 organic matter Substances 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000012141 concentrate Substances 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 17
- 239000003610 charcoal Substances 0.000 description 14
- 230000004060 metabolic process Effects 0.000 description 8
- 230000001580 bacterial effect Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000000050 nutritive effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 239000002054 inoculum Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000002503 metabolic effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000003933 environmental pollution control Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000002417 nutraceutical Substances 0.000 description 1
- 235000021436 nutraceutical agent Nutrition 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000003403 water pollutant Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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Abstract
活性炭浓缩分离－生物再生污水处理设备和方法属于环境工程中的污水处理技术领域。利用活性炭吸附浓缩分离污染物，然后经过生物再生活性炭，实现高盐度、单一性污染物以及其它不适合直接生物处理的污水的处理过程。其主要工艺过程包括活性炭吸附－生物再生两个单元，一般分多组交替运行实现对污水的连续处理。本发明所达到的效果为：高盐度废水的处理，生化处理效率高，运行成本低；成分单一的有机工业污水，将有机物的吸附脱除和降解分阶段进行，以便提供充分的营养；含有机物的气体处理，生物吸附和生物再生同步进行。适用于高盐度废水的生化处理过程，使盐度对生物的抑制作用大为降低，同时对污染物成分单一的污水处理也很实用。
The active carbon concentration and separation-biological regeneration sewage treatment equipment and method belong to the technical field of sewage treatment in environmental engineering. Activated carbon is used to adsorb, concentrate and separate pollutants, and then through biologically regenerated activated carbon to realize the treatment process of high salinity, single pollutants and other sewage that is not suitable for direct biological treatment. Its main process includes two units of activated carbon adsorption-biological regeneration, which are generally divided into multiple groups to operate alternately to realize continuous treatment of sewage. The effects achieved by the present invention are: the treatment of high-salinity waste water has high biochemical treatment efficiency and low operating cost; organic industrial sewage with a single component, the adsorption, removal and degradation of organic matter are carried out in stages to provide sufficient nutrition; Gas treatment of organic matter, biosorption and bioregeneration are carried out simultaneously. It is suitable for the biochemical treatment process of high-salinity wastewater, which greatly reduces the inhibitory effect of salinity on organisms, and is also very practical for the treatment of sewage with a single pollutant component.
Description
Technical field the invention belongs to the technical field of sewage in the environmental engineering.
Background technology water pollute with shortage of water resources be the great social concern that the world today faces, shortage of water resources occupies quite great proportion owing to water quality deterioration loses the water quality shortage that use value causes except the shortage of the water yield.The most of rivers,lakes and seas of China all are subjected to the different pollution of degree, in 520 big and medium-sized cities, 300 urban water shortages are arranged, 100 city serious water shortages.Serious water pollutes and has more aggravated shortage of water resources, otherwise the water resources deficiency has increased the weight of the water pollution again, forms vicious cycle.Therefore the solution environmental pollution is not only in sewage disposal, also is the key that solves the shortage of water resources problem.
Most widely used, most economical method is a biological treatment in the sewage disposal, and it has experienced the evolution and the transition of last 100 years, has become the most critical technology of environmental pollution control at present.Yet, have many factors to cause can't efficiently moving of biological treatment: for example: 1, the brine waste of high density, because its high osmotic pressure makes biology be difficult to growth, thereby can not handle such waste water.And brine waste is the sizable class sewage of quantity discharged in the chemical industry, and contains a large amount of other organic heavily contaminated waste water often, if organism effectively can be separated with inorganics, organism then will be very easy with biological treatment again.2, the single sewage of nutrition source, such sewage also is present in various chemical processs in a large number, because the insufficient biochemical treatment of nutrition source must replenish the nutrition that lacked for biological growth, and this moment is except increasing cost, because it is bigger to handle the water yield, the nutrition utilization that adds can not cause to efflux additionally increasing of water pollutant concentration fully, and whole biochemical treatment efficient is reduced.3, sewage of low concentration advanced treatment, for reusing sewage, advanced treatment of wastewater Study on Technology and exploitation have extensively been carried out at present, the organic concentration of biodegradable is extremely low in the sewage at this moment, and is many below 100mg/l with chemical oxygen demand cod calculating, and this moment is because the nutrition shortage causes the biological growth amount of unit volume very little, biochemical efficiency is low, this moment, nutrition also lacked, and restock will increase the emission concentration of pollutent, and reuse water is exceeded standard.4, the waste water that has biological metabolism poisonous substance, biostats, bio-refractory dirt, need to adopt the sewage disposal of biological metabolic mechanism altogether degraded, if directly in raw waste water, add common metabolism substrate organic concentration will be improved greatly, if will its separate after again with metabolic mechanism altogether then can effectively handle the Pollutant levels that this pollutant but can not increase discharge water.
Though the charcoal technology is widely paid close attention to by people, but charcoal is directly to finish the bio-regeneration process at pending water, can not improve the biological nutrient concentrations that is lacked artificially, can not avoid the interference of salt concn, can not effectively implement biological metabolism altogether, can not artificially improve the organic concentration of the water of handling thereby have significant limitation.The present invention can overcome above-mentioned all shortcomings and can be widely used in the problem that present sewage biochemical processing method cann't be solved.
Summary of the invention purpose of the present invention just provides a kind ofly can improve biological nutrient concentrations, the interference that can avoid salt concn that is lacked artificially, can effectively implement biological metabolism altogether, can artificially improve gac concentrating and separating---the bio-regeneration sewage disposal device and the method for the organic concentration of the water of handling.
Technical conceive of the present invention is, utilize the absorption property of gac, organic pollutant is adsorbed onto on the gac from aqueous phase, then water is separated with gac, to be adsorbed with organic gac and contact with being rich in the necessary nutraceutical water of biological growth, nutrition is according to original organism characteristics and additional configurations is perfect, and fully oxygen supply is fully degraded the biological pollutent that gac is adsorbed, then gac again with this aqueous phase separation, gac carries out second absorption of taking turns.So hocket,, reach best matching state according to the quantity of the definite absorption of organic matter biodegradation characteristic with the regenerated residence time and reactor.
Technical solution of the present invention is, gac concentrating and separating---bio-regeneration sewage disposal device, comprise the following processing unit that once connects: sewage collecting equalizing tank (1), equalizing tank sump pump (2), pre-sedimentation treating pond (3), settling bowl sump pump (4), shore pipe (5), under meter (6), water inlet pipe (11), bio-regeneration reaction solution preparing pool (13), bio-regeneration liquid liquid-feeding pump (14), regenerated liquid liquid-inlet pipe (15), regenerated liquid return line (16) and the bio-regeneration air-distributor is housed, the gac supporting screening plate, active carbon filler, the charcoal absorption of rising pipe and regeneration reactor, its special, also comprise charcoal absorption bio-regeneration reactor.
Charcoal absorption bio-regeneration reactor is 3, they are that bio-regeneration air-distributor (8) is housed, gac supporting screening plate (9), active carbon filler (10), the charcoal absorption of rising pipe (12) and regeneration reactor (7), bio-regeneration air-distributor (23) is housed, gac supporting screening plate (24), active carbon filler (18), the charcoal absorption of rising pipe (19) and regeneration reactor (17) are equipped with bio-regeneration air-distributor (25), gac supporting screening plate (26), active carbon filler (21), the charcoal absorption of rising pipe (22) and regeneration reactor (20).
Use gac concentrating and separating---the treatment process of bio-regeneration sewage disposal device is, treatment sewage, after the homogenization treatment of collecting equalizing tank (1), enter conventional coagulant precipitation pre-treatment (3), use settling bowl sump pump (4) sewage to be delivered to the bottom of charcoal absorption and regeneration reactor then, by the adsorption of gac (10), pollutants in sewage is trapped on the gac and removes, the sewage of purification is discharged by the rising pipe at top.The residence time of charcoal absorption is determined according to organic concentration to be removed in the sewage, its precondition is that the concentration that guarantees pollutent in the water outlet reaches the level of intending processing, when Pollutant levels in the water outlet surpass controlling index, stop into water, water inlet is switched to another adsorptive reactor, carry out bio-regeneration to adsorbing saturated reactor, to leave the regenerated liquid that configures in the regenerated liquid make-up tank (13) this moment in delivers to and needs the adsorptive reactor of bio-regeneration to carry out manipulation of regeneration, regenerated liquid enters reactor and is filled to water outlet (16) from the bottom, provide oxygen for the biological growth needs by gas blower, kind and the quantity of recovery time according to the need degradation of contaminant changes.Bio-regeneration liquid directly turns back to the regenerated liquid make-up tank, for adsorber regeneration is next time used.
Can adsorb by a reactor, a plurality of reactors regeneration also can be adsorbed by a plurality of reactors, a reactor regeneration.
Charcoal absorption of different sewage concentration and bio-regeneration time (100 tons/hour of the water yields)
| Sequence number | Pollutant levels (mg/l) | Design water concentration (mg/l) | Adsorbing and removing amount (Kg/ hour) | The absorption residence time (minute) | The regeneration residence time (hour) |
| 1 | ?20 | ?2 | ?1.8 | ?30 | ?3 |
| 2 | ?50 | ?5 | ?4.5 | ?45 | ?4 |
| 3 | ?100 | ?10 | ?9 | ?60 | ?6 |
| 4 | ?500 | ?100 | ?40 | ?60 | ?12 |
| 5 | ?1000 | ?150 | ?85 | ?60 | ?24 |
| 6 | ?5000 | ?250 | ?475 | ?60 | ?48 |
Contain the nutritive substance that satisfies biological growth in the regenerated liquid,, should comprise needed other nutrition of microorganism growth in the nutrition for the single sewage of substrate; For containing the altogether sewage of the pollutent that could degrade of metabolism of needs, need provide common metabolism substrate.
Also contain essential biological inoculum or flora in the regenerated liquid, such bacterial classification is introduced at the technology initial operating stage, and finally reaches steady operational status through the domestication process, considers replenishing of bacterial classification and activation for particular case, does not generally need to replenish and change.Can adopt specified strain or artificial constructed genetically engineered bacterial classification for specific pollutent.
In order to guarantee the continuity of sewage treatment process, for different pollutents and different concentration, the bio-regeneration time will have difference, therefore the number of charcoal absorption bio-regeneration reactor can be adjusted as required, be not only can exceed with three, can be as the criterion with arts demand greater or less than three.
Give tolerance except the needs that satisfy biochemical oxygen demand (BOD) during bio-regeneration, also will consider active carbon bed suitably looseningly, the short period of time reaches fluidisation or semi-fluid state, to prevent that bed is by suspended substance or biological the obstruction.
Definite need of recovery time and adsorption time are tested definite according to character, the water yield of processing sewage in the table, particularly organic biodegradable ability etc. in the organic concentration of the salt concentration of sewage, sewage, the sewage must be determined this two times according to the experimental result of specific sewage.Universal law is: salt concentration is high more, and adsorption time is short more; Organic concentration is high more, and adsorption time is short more; The pollutent biological degradability is good more, and the recovery time is short more.
Contain the nutritive substance that satisfies biological growth in the regenerated liquid,, should comprise needed other nutrition of microorganism growth in the nutrition for the single sewage of substrate; For containing the altogether sewage of the pollutent that could degrade of metabolism of needs, common metabolism substrate need be provided, also contain essential biological inoculum or flora in the regenerated liquid, such bacterial classification is introduced at the technology initial operating stage, and process domestication process finally reaches steady operational status, consider replenishing of bacterial classification and activation for particular case, generally do not need to replenish and change.Can adopt specified strain or artificial constructed genetically engineered bacterial classification for specific pollutent.
The effect that the present invention reached is: for the processing of high salinity waste water, can adopt halophilic bacterium to handle, improve biochemical treatment efficient, reduce running cost; For the single organic industry sewage of composition, can adopt this art breading, organic adsorbing and removing and degraded are carried out stage by stage, so that sufficient nutrition is provided; Also have distinctive feature for containing organic this technology of gas processing, organic exhaust gas can feed continuously and drip filter tower and regenerated liquid also can be supplied with continuously, and biological absorption and bio-regeneration are carried out synchronously.
The present invention is further illustrated below in conjunction with drawings and Examples for description of drawings.
Fig. 1 is a process flow sheet of the present invention.
It is 100 tons/hour that embodiment is worked as sewage load, organic concentration (representing with BOD) is at 200 milligrams/liter, removing the BOD amount day is 480 kilograms, the charcoal absorption capacity calculates by 0.1 gram/gram, the adsorption equilibrium time is 1 hour, and then the consumption of activated carbon of sorbent is: 0.8 cubic metre; The bio-regeneration volumetric loading calculates by 2 kilograms of BOD/ cubic meters, and the recovery time is 10 hours.Specific embodiment is summarized as follows: sewage collecting equalizing tank volume is generally the 800-1200 cubic meter, when the water yield changes violent, have when not having the water of coming more than 12 hours, equalizing tank is wanted 2400 cubic metres, after the homogenization treatment of sewage through the collection equalizing tank, enter conventional coagulation pretreatment, 30 cubic metres of reaction zones, 300 cubic metres of negative areas, with the water pump of 100 cubic metres/hour of flows sewage is delivered to the adsorption of adsorption column by gac then, pollutants in sewage is trapped in the gac and removes, the sewage of purification is effluxed by the water shoot at adsorption tower top.When the charcoal absorption balance, enter the regeneration stage, being stored in volume based on the regeneration nutritive medium of sanitary sewage is in 300 cubic metres the regeneration liquid pool, the regeneration bacterial classification derives from sanitary sewage, because the abundant supplementary carbon source no longer separately of sanitary sewage nutrition, nitrogenous source and phosphorus source, regenerated liquid reflux pump with 100 cubic metres/hour of flows is delivered to the gac tower bottom with regenerated liquid, provide the sufficient nutrition thing so that the organism that its growth and degraded are held back to biology, regenerated liquid flows back to regenerated liquid storage pond from the top water shoot of tower after by active carbon bed.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310105117 CN1233576C (en) | 2003-11-14 | 2003-11-14 | Sewage processing device and method by active carbon concentration and separation and biological regeneration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310105117 CN1233576C (en) | 2003-11-14 | 2003-11-14 | Sewage processing device and method by active carbon concentration and separation and biological regeneration |
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| Publication Number | Publication Date |
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| CN1544361A true CN1544361A (en) | 2004-11-10 |
| CN1233576C CN1233576C (en) | 2005-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092870A (en) * | 2010-12-31 | 2011-06-15 | 大连理工大学 | Sewage treatment equipment and process for concentration/chemical oxidation regeneration of absorbent |
| CN106145385A (en) * | 2016-08-08 | 2016-11-23 | 上海市政工程设计研究总院（集团）有限公司 | A kind of water supply plant biological powder activated carbon circulating purification system |
| CN106242028A (en) * | 2016-08-08 | 2016-12-21 | 上海市政工程设计研究总院（集团）有限公司 | A kind of biological powder activated carbon purification method of water supply factory |
| CN108191154A (en) * | 2018-01-10 | 2018-06-22 | 安徽普氏生态环境工程有限公司 | A kind of sewage disposal system and its technique of double composite adsorption devices |
| CN108191155A (en) * | 2018-01-10 | 2018-06-22 | 安徽普氏生态环境工程有限公司 | The integrated form sewage disposal system and its technique of a kind of activated carbon adsorption |
| CN108191156A (en) * | 2018-01-10 | 2018-06-22 | 安徽普氏生态环境工程有限公司 | The integrated form sewage disposal system and its technique of a kind of composite adsorption |
| CN108191153A (en) * | 2018-01-10 | 2018-06-22 | 安徽普氏生态环境工程有限公司 | A kind of sewage disposal system and its technique of double activated carbon adsorbent equipment |
| CN108483801A (en) * | 2018-03-26 | 2018-09-04 | 华南理工大学 | A method of based on ammonia nitrogen in ammonia nitrogen absorption and enhanced biological regeneration removing low-temperature wastewater |
| CN109095619A (en) * | 2017-06-20 | 2018-12-28 | 兰州博域生物科技有限责任公司 | A kind of circulating heavy metal recovery bioreactor |
| CN111320285A (en) * | 2020-04-03 | 2020-06-23 | 中国科学院城市环境研究所 | A Standard Modular Fill and Horizontal Underflow Constructed Wetland |
-
2003
- 2003-11-14 CN CN 200310105117 patent/CN1233576C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092870A (en) * | 2010-12-31 | 2011-06-15 | 大连理工大学 | Sewage treatment equipment and process for concentration/chemical oxidation regeneration of absorbent |
| CN102092870B (en) * | 2010-12-31 | 2012-07-04 | 大连理工大学 | Sewage treatment equipment and process for concentration/chemical oxidation regeneration of absorbent |
| CN106145385A (en) * | 2016-08-08 | 2016-11-23 | 上海市政工程设计研究总院（集团）有限公司 | A kind of water supply plant biological powder activated carbon circulating purification system |
| CN106242028A (en) * | 2016-08-08 | 2016-12-21 | 上海市政工程设计研究总院（集团）有限公司 | A kind of biological powder activated carbon purification method of water supply factory |
| CN109095619A (en) * | 2017-06-20 | 2018-12-28 | 兰州博域生物科技有限责任公司 | A kind of circulating heavy metal recovery bioreactor |
| CN108191154A (en) * | 2018-01-10 | 2018-06-22 | 安徽普氏生态环境工程有限公司 | A kind of sewage disposal system and its technique of double composite adsorption devices |
| CN108191155A (en) * | 2018-01-10 | 2018-06-22 | 安徽普氏生态环境工程有限公司 | The integrated form sewage disposal system and its technique of a kind of activated carbon adsorption |
| CN108191156A (en) * | 2018-01-10 | 2018-06-22 | 安徽普氏生态环境工程有限公司 | The integrated form sewage disposal system and its technique of a kind of composite adsorption |
| CN108191153A (en) * | 2018-01-10 | 2018-06-22 | 安徽普氏生态环境工程有限公司 | A kind of sewage disposal system and its technique of double activated carbon adsorbent equipment |
| CN108483801A (en) * | 2018-03-26 | 2018-09-04 | 华南理工大学 | A method of based on ammonia nitrogen in ammonia nitrogen absorption and enhanced biological regeneration removing low-temperature wastewater |
| CN108483801B (en) * | 2018-03-26 | 2021-06-08 | 华南理工大学 | A method for removing ammonia nitrogen from low temperature wastewater based on ammonia nitrogen adsorption and enhanced biological regeneration |
| CN111320285A (en) * | 2020-04-03 | 2020-06-23 | 中国科学院城市环境研究所 | A Standard Modular Fill and Horizontal Underflow Constructed Wetland |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1233576C (en) | 2005-12-28 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051228 Termination date: 20191114 |