CN101798157A - Combined purification method of drinking water - Google Patents
Combined purification method of drinking water Download PDFInfo
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- CN101798157A CN101798157A CN 201010120546 CN201010120546A CN101798157A CN 101798157 A CN101798157 A CN 101798157A CN 201010120546 CN201010120546 CN 201010120546 CN 201010120546 A CN201010120546 A CN 201010120546A CN 101798157 A CN101798157 A CN 101798157A
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- fluidized bed
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- drinking water
- embedded particles
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 235000020188 drinking water Nutrition 0.000 title claims abstract description 19
- 239000003651 drinking water Substances 0.000 title claims abstract description 19
- 238000000746 purification Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 239000002245 particle Substances 0.000 claims abstract description 42
- 239000012528 membrane Substances 0.000 claims abstract description 19
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 19
- 239000000701 coagulant Substances 0.000 claims abstract description 16
- 230000003068 static effect Effects 0.000 claims abstract description 8
- 238000005189 flocculation Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 230000016615 flocculation Effects 0.000 claims abstract description 6
- 238000005273 aeration Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract 2
- 238000011049 filling Methods 0.000 claims description 6
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 150000002505 iron Chemical class 0.000 claims description 3
- 229920000620 organic polymer Polymers 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 claims 1
- 229920002635 polyurethane Polymers 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 claims 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 13
- 238000011010 flushing procedure Methods 0.000 abstract description 4
- 239000005416 organic matter Substances 0.000 abstract description 4
- 239000008400 supply water Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000005345 coagulation Methods 0.000 description 7
- 230000015271 coagulation Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 4
- 230000003311 flocculating effect Effects 0.000 description 4
- 244000005700 microbiome Species 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002384 drinking water standard Substances 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
本发明涉及一种水净化技术领域的饮用水组合净化方法，包括以下步骤：构建包埋颗粒流化床；微污染水源水经过装填包埋颗粒的流化床，从流化床底部流入，在底部曝气系统所释放出来的空气形成搅拌力，将包埋颗粒悬浮在水中达到流化状态；在流化床出水口处设置加药口，混凝剂经静态管道混合器混合进入中间水箱继续絮凝，形成较大絮体；进一步经自冲洗过滤器截留后，直接进入超滤膜组件过滤。通过本发明方法的实施，可以使被处理的微污染水源水的出水水质安全卫生，出水浊度小于0.12NTU，氨氮浓度和有机物浓度(CODMn)浓度分别小于0.5mg/L和3.0mg/L，满足新的《城市供水水质标准》。
The invention relates to a combined drinking water purification method in the field of water purification technology, comprising the following steps: constructing a fluidized bed of embedded particles; slightly polluted source water flows through the fluidized bed filled with embedded particles, flows in from the bottom of the fluidized bed, and The air released by the bottom aeration system forms a stirring force, suspending the embedded particles in the water to achieve a fluidized state; a dosing port is set at the outlet of the fluidized bed, and the coagulant is mixed into the intermediate water tank through a static pipeline mixer to continue Flocculation to form larger flocs; after being further intercepted by the self-flushing filter, it directly enters the ultrafiltration membrane module for filtration. By implementing the method of the present invention, the effluent water quality of the treated slightly polluted water source water can be made safe and hygienic, the turbidity of the effluent is less than 0.12NTU, and the ammonia nitrogen concentration and the organic matter concentration (COD Mn ) concentration are less than 0.5mg/L and 3.0mg/L respectively , to meet the new "Urban Water Supply Water Quality Standards".
Description
Technical field
The present invention is a kind of method of water-treatment technology field, specifically is a kind of combined purification method of drinking water based on the grain fluidized bed structure of embedding bacterium, coagulation and ultrafiltration.
Background technology
Surface water body is taken from the water source of domestic most of water-supply plant, as rivers, lake etc.Along with rapid economy development, many surface water are polluted.Source water is subjected to pollution in various degree, particularly ammonia nitrogen and organism, forms micro-polluted source water.Yet, water-supply plant adopts and is followed successively by: the traditional method of " former water, dosing, coagulation, reaction, precipitation, filtration, sterilization ", but its effluent quality can not reach the drinking water quality standard of increasingly stringent far away, and ammonia nitrogen and organic indicator often can not satisfy the requirement of output water.At present, the common way of handling this micro-polluted water is preposition Biological Pretreatment unit, as bio-contact oxidation and biological filter, removes ammonia nitrogen and part organic pollutant; Also there are the rearmounted advanced treatment method of employing such as biology+activated carbon method or ozone+activated carbon method to solve ammonia nitrogen and organic matter removal problem.But in practice process, there is low, the overstand of processing efficiency in preposition Biological Pretreatment, and floor space reaches problems such as complicated operation greatly; The facility investment of rearmounted advanced treatment method biology+activated carbon method or ozone+activated carbon method is big, safeguards complexity, and has biological risk problem.The most important thing is that these methods are to increase processing unit on the traditional method basis, cause treatment scheme long, floor space increases, problems such as complex management.It is the important breakthrough of water purification technology in recent years that ultra-filtration membrane (UF) technology is applied to the drinking water treatment field, but most suspended substances, colloid and bacterium in the ultra-filtration membrane trap water, but not high to organic removal rate in solvability ammonia nitrogen and the water.Therefore, press for to develop and a kind ofly can effectively remove pollutent in the micropollutant water (particularly ammonia nitrogen and organism) fast, and be simple and easy to safeguard, new process for purifying water that expense is cheap.
Find by prior art documents; patent application publication number: CN 1807277A; application number: 200610023790.0; title: dropping, aeration and biological pretreatment-super filtering combined drinking water purification process; this technology readme: at first make up multistage dropping, aeration and biological pretreatment unit; then pending former water is once promoted; through the most ammonia-nitrogen in the water has been removed in drop oxygenation and bio-contact oxidation pre-treatment step by step; the oligodynamical organic matter is changed into microorganism cells; earlier by behind the protective device porous ceramic grain filter; enter hyperfiltration membrane assembly again, make the micro-content organism in the water; ammonia nitrogen; particulate matter; overwhelming majority suspended substance; material such as colloid and bacterium is reduced to and satisfies water quality standard for drinking water.In fact this combination process hydraulic detention time is long, and floor space is big, and the filter tank needs back flushing, complex management.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of combined purification method of drinking water is provided, the present invention effectively removes ammonia nitrogen and organism in the micro-polluted water, simple, cost effective method fast.
The present invention is achieved by the following technical solutions:
The present invention loads embedded particles and removes most solvability ammonia nitrogens and part low-molecular-weight organic matter in the micro-polluted water fast in the Biological Pretreatment fluidized-bed, water outlet is removed most suspended substances, colloid and bacterium in the water body through follow-up coagulation and ultra-filtration membrane method, the aforesaid combination method can give full play to microorganism, coagulation and membrane technique three (" wearing " changes " person " into) remove the advantage of different pollutents, reach the purpose of preparation safety and sanitation tap water.
The present invention includes following steps:
1. make up the embedded particles fluidized-bed, described embedded particles material is urethane or polyacrylamide organic polymer gel, and its inside is embedded with active sludge.
Described embedded particles is the cubes of profile length of side 3-6mm, and density is 1.02-1.04g/cm
3
The volume filling ratio 8%-20% of described embedded particles, preferred 10%-15%.
2. micro-polluted source water flows into from the fluidized-bed bottom through the fluidized-bed of filling embedded particles, and the air that is discharged at the bottom aerating system forms whipping force, embedded particles is suspended in reach fluidized state in the water.
In the fluidized-bed bottom, the swash plate of setting is 30 °, prevents embedded particles accumulation dead angle.
Before the water outlet of fluidized-bed top, be provided with the stainless steel filter that prevents that embedded particles from being taken out of by current.
Described fluidized-bed, current hydraulic detention time in the embedded particles fluidized-bed reaches 20-60min, preferred 30-45min.Removed most solvability ammonia nitrogens and the part organic pollutant in the water.
The air that described aerating system is released in the water is in the bubble form disperse water, provides bio-oxidation required oxygen.The airing system that the air of aerating system is made up of air-blaster and air line provides.
3. at fluidized-bed water outlet place dosing mouth is set, coagulating agent is mixed into intermediate water tank through static line mixer and continues flocculation, forms than big flocculating body; The residence time changes and difference with the water inlet flow velocity in intermediate water tank after static line mixer mixes, and is 14-40min, preferred 20-30min..
Described coagulating agent is iron salt coagulant or aluminum salt; Described iron salt coagulant is: iron trichloride; Described aluminum salt is: polymerize aluminum chloride.
Self-cleaning filter is set before ultra-filtration membrane, the first step is carried out in middle water tank water outlet filter, remove flco and suspended substance and make effective reduction turbidity, avoid ultra-filtration membrane to stop up and increase the service life.
4. further after self-cleaning filter is held back, directly enter hyperfiltration membrane assembly and filter.
The present invention adopts immobilization embedded technology, and embedded particles contains high concentration microorganism, therefore can effectively remove most solvability ammonia nitrogens and partial organic substances in a short period of time.Compare other pretreatment processs, can reduce a large amount of floor spaces, and simple, do not need steps such as back flushing or frequent spoil disposal; Before ultrafiltration membrance filter, adopt Biological Pretreatment and coagulation pretreatment, some dissolved organic matters and colloid all obtain removing under biological degradation and coagulation-flocculation effect in the water body, and these pollutents stop up the ultrafiltration fenestra easily, therefore protect hyperfiltration membrane assembly, prolonged the work-ing life of ultra-filtration membrane; Adopt biology, combination techniques such as physical chemistry and physical filtering are not only removed ammonia nitrogen and can be obtained satisfied effect, control the Organic pollutants effect also clearly, and ultra-filtration membrane outlet water organic substance content significantly reduces, and the security of effluent quality improves greatly; Each unitary hydraulic detention time is all shorter, is 40min-105min from promoting former water to producing water total time, and preferred 55-80min. therefore this combined method reduces floor space in a large number in the tap water that produces hygienic safety fast.
By the enforcement of the inventive method, can make the effluent quality safety and sanitation of processed micro-polluted source water, delivery turbidity is less than 0.12NTU, ammonia nitrogen concentration and organic concentration (COD
Mn) concentration is respectively less than 0.5mg/L and 3.0mg/L, satisfies new " Urban water supply water quality standard ".
Description of drawings
Fig. 1 is an embedded particles fluidized-bed structure synoptic diagram of the present invention;
Among the figure: 1, inlet pipe, 2, water inlet pipe, 3, bottom 30 degree swash plates, 4, embedded particles, 5, the top filter, 6, rising pipe.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment has provided detailed embodiment and process being to implement under the prerequisite with the technical solution of the present invention, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
Device such as Fig. 1 that the present embodiment embodiment adopts, present embodiment implementing process flow process is followed successively by: former water, embedded particles fluidized-bed, line-blending, intermediate water tank, ultra-filtration membrane, water outlet.
Comprise that step is as follows:
Make up the embedded particles fluidized-bed, its inside is embedded with the active sludge precipitation and forms;
2. micro-polluted source water flows into from the fluidized-bed bottom through the fluidized-bed of filling embedded particles, and the air that is discharged at the bottom aerating system forms whipping force, embedded particles is suspended in reach fluidized state in the water.
3. at fluidized-bed water outlet place dosing mouth is set, coagulating agent is mixed into intermediate water tank through static line mixer and continues flocculation, forms than big flocculating body;
4. further after self-cleaning filter is held back, directly enter hyperfiltration membrane assembly and filter.
Obtaining expected effect according to above-mentioned steps in multinomial embodiment process, the implementation condition of multinomial embodiment is as follows:
The embedded particles material adopts urethane or polyacrylamide organic polymer gel to implement respectively; Embedded particles is that the profile length of side adopts 3mm/6mm to implement respectively, and density adopts respectively: 1.02g/cm
3,1.04g/cm
3Implement; The embedded particles filling ratio is adopted as 10%, 15% respectively and implements; Swash plate in the fluidized-bed bottom adopts 30 ° and implements; The flow velocity of control current, adopting in the embedded particles fluidized-bed hydraulic detention time respectively is that 30-45min implements repeatedly; Coagulating agent is adopted as iron salt coagulant or aluminum salt respectively, promptly adopt iron trichloride, polymerize aluminum chloride to implement respectively, implement repeatedly when this coagulating agent is controlled at 14-40min in intermediate water tank residence time in intermediate water tank after static line mixer mixes.
Application example
When river discharge is controlled to be 3m
3/ h, enter the embedded particles fluidized bed processing after, flow into intermediate water tank, water outlet enters ultrafiltration membrane system and filters.River at first flow in the embedded particles fluidized-bed from bottom water inlet pipe 2, and embedded particles fluidized-bed cross section is the square of 80*80cm, high 2600mm, useful volume: 1.49m
3Embedded particles 4 filling ratios are fluidized-bed working volume 10%, and hydraulic detention time is controlled to be 30min.Under the pneumatic blending that aerating system inlet pipe 1 is discharged, and be in fluidised embedded particles 4 and carry out thorough mixing and contact.Embedded particles with after the current rising, reaches top filter 5 backs and descends under air effect, enter behind bottom swash plate 3 next time and rise, so embedded particles is in the ideal recurrent state in fluidized-bed.The water outlet of embedded particles fluidized-bed is flowed out from rising pipe 6.Source water has been removed most solvability ammonia nitrogens and partial organic substances after the embedded particles fluidized bed processing.Treating water and concentration 6mg (Fe)/L iron trichloride (FeCl
36H
2O) after static line mixer mixes, enter intermediate water tank and further flocculate, form than big flocculating body.Intermediate water tank useful volume 1m
3, the centre adds dividing plate, divides flocculation and precipitation part, and flocculation and sedimentation time are respectively 6min and 14min. intermediate water tank bottom is provided with shore pipe, regularly spoil disposal.Coagulation has effectively been removed macromolecule organism in the water body, has reduced the load of subsequent ultrafiltration film, has prolonged the duration of service of film.
The intermediate water tank water outlet enters self-cleaning filter and carries out primary filter, removes than big flocculating body and suspended substance and effective turbidity that reduces, and has effectively ensured the steady running of subsequent ultrafiltration film.Ultra-filtration membrane adopts the inner pressed hollow-fibre membrane, and dead-end filtration carries out the physics back flushing once every 60min, effectively decelerating membrane pollution.Film is handled and has been held back most suspended substances and organism, effectively reduces turbidity and organic content.The final water that produces has reached drinking water standard.Its Inlet and outlet water water quality sees Table 1.
The purifying water effect of table 1 embedded particles fluidized-bed-coagulation-ultrafiltration combined method (18 ℃ of water temperatures)
| Project | Source water | The fluidized-bed water outlet | The coagulation water outlet | The ultrafiltration water outlet | Total plug of removing |
| Turbidity (NTU) | ??36 | ??35 | ??15 | ??0.10 | ??99.7％ |
| Ammonia nitrogen (mg/L) | ??2.40 | ??0.45 | ??0.30 | ??0.30 | ??87.5％ |
| ??COD Mn(mg/L) | ??4.5 | ??4.3 | ??2.7 | ??2.2 | ??51.1％ |
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010120546 CN101798157A (en) | 2010-03-09 | 2010-03-09 | Combined purification method of drinking water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010120546 CN101798157A (en) | 2010-03-09 | 2010-03-09 | Combined purification method of drinking water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101798157A true CN101798157A (en) | 2010-08-11 |
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ID=42594025
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466819A (en) * | 2013-08-28 | 2013-12-25 | 河海大学 | Ultrafiltration and powdered activated carbon adsorption combined purification device for removing trace organic matters from drinking water |
| CN106242053A (en) * | 2016-08-29 | 2016-12-21 | 湖州至美生物科技有限公司 | A kind of biological pre-treatment process of micro-polluted raw |
| CN118084254A (en) * | 2024-03-29 | 2024-05-28 | 重庆市科学技术研究院 | COD-basedMnTreatment method of micro-polluted source water with ammonia nitrogen concentration |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0301924A2 (en) * | 1987-07-31 | 1989-02-01 | Nishihara Environmental Sanitation Research Corp. Ltd. | Waste water treating process |
| CN101580328A (en) * | 2009-06-19 | 2009-11-18 | 清华大学 | Method and device for treating micro-polluted surface water |
-
2010
- 2010-03-09 CN CN 201010120546 patent/CN101798157A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0301924A2 (en) * | 1987-07-31 | 1989-02-01 | Nishihara Environmental Sanitation Research Corp. Ltd. | Waste water treating process |
| CN101580328A (en) * | 2009-06-19 | 2009-11-18 | 清华大学 | Method and device for treating micro-polluted surface water |
Non-Patent Citations (1)
| Title |
|---|
| 《中国给水排水》 20080731 余冬冬等 包埋固定化微生物处理微污染原水的试验研究 第85-88页 1-10 第24卷, 第13期 2 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466819A (en) * | 2013-08-28 | 2013-12-25 | 河海大学 | Ultrafiltration and powdered activated carbon adsorption combined purification device for removing trace organic matters from drinking water |
| CN103466819B (en) * | 2013-08-28 | 2014-11-12 | 河海大学 | Ultrafiltration and powdered activated carbon adsorption combined purification device for removing trace organic matters from drinking water |
| CN106242053A (en) * | 2016-08-29 | 2016-12-21 | 湖州至美生物科技有限公司 | A kind of biological pre-treatment process of micro-polluted raw |
| CN118084254A (en) * | 2024-03-29 | 2024-05-28 | 重庆市科学技术研究院 | COD-basedMnTreatment method of micro-polluted source water with ammonia nitrogen concentration |
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Open date: 20100811 |