CN103922449A - Efficient environment-friendly flocculant for treatment of black-odor river - Google Patents
Efficient environment-friendly flocculant for treatment of black-odor river Download PDFInfo
- Publication number
- CN103922449A CN103922449A CN201410134838.XA CN201410134838A CN103922449A CN 103922449 A CN103922449 A CN 103922449A CN 201410134838 A CN201410134838 A CN 201410134838A CN 103922449 A CN103922449 A CN 103922449A
- Authority
- CN
- China
- Prior art keywords
- flocculation agent
- black smelly
- environment friendly
- administering
- efficiency environment
- 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
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a novel efficient environment-friendly flocculant for the treatment of black-odor river. The flocculant comprises the following components in percentage by weight: 20-60% of PAC (Polyaluminium Chloride), 5-10% of unslaked lime, 5-10% of sodium carbonate, 10-30% of diatomaceous earth, 1-3% of chitosan, 2-5% of carboxymethyl starch (CMS), 1-3% of neutral protease and 10-25% of cement. the components of the flocculant disclosed by the invention are abundant, inexpensive, economical and environment-friendly; all the components are used together, the addition of the flocculant is small, the flocculant hardly affects the pH of the water and the original performances of the sludge in water are not changed; partially active heavy metals are cured, which is beneficial to increase of the activity of the sludge so that the self cleaning capacity of water bodies is greatly improved. The multiple functions such as adsorption, aggregation, chelation, curing and catalytic degradation are integrated into a whole to achieve a good treatment effect. The flocculated and settled water body is clear, transparent and odorless.
Description
Technical field
The present invention relates to a kind of flocculation agent, relate in particular to a kind of flocculation agent of administering for black smelly river.
Background technology
Along with economic fast development and the quickening of urbanization process, China's water pollution problems is day by day serious.A large amount of discharges of trade effluent and sanitary sewage, have become the pollution problem that the many cities of China are faced jointly, have had a strong impact on resident living, city image and ecotope.At present mainly can be divided into physics, chemistry and biological-ecological three class methods for administering the technology in black smelly river both at home and abroad.Physical method mainly comprises filtration, precipitation, artificial aeration etc.; Chemical process mainly comprises enhanced flocculation, chemical oxidation and chemical precipitation etc.; Biological method mainly comprises microbial augmentation technology, technology of biological membrane, plant purification technology and biological-ecological purification techniques etc.
The advantages such as that physical method and chemical process have is simple to operate, instant effect generally help out in black smelly river is administered.Biological method can fundamentally recover the ecological functions in black smelly river, it is the very fast a kind of technology of domestic and international development in recent years, the Metabolic activity of the microorganism of the plant that its utilization is cultivated or cultivation, inoculation, pollutent to black smelly korneforos shifts, transforms and degrades, improve water quality, build the aquatic ecosystem with complete trophic level structure simultaneously, fundamentally recover the health of water body system.Biological method is applied to the improvement in black smelly river, have stable effectively, secure persistent, construction costs is lower, running cost is cheap, can improve the feature such as combine with greening environment and view, but biological method processing takes effect slowly, and be subject to the impact of season and weather condition, effective follow-up management of simultaneity factor safeguards it is also the major issue of being badly in need of solution in biological method application process.
Summary of the invention
For the deficiency of existing biologic treating technique, the object of the invention is to propose the high-efficiency environment friendly flocculation agent for black smelly river biological treatment a kind of cheapness, good, the environmental protection for the treatment of effect, to reaching in improving treatment effect to greatest extent, reduce its processing cost and the secondary pollution to environment.This preparation is by pollution factor cohesion sedimentation in water and be cured to bed mud, activates bed mud simultaneously.Solved the effect of harnessing the river that the various technology of current use face bad, pollutants in sediments can secondary discharges and cause water again black smelly, and the ecosystem is difficult to the problem of setting up.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of for administering the novel high-efficiency environment friendly flocculation agent in black smelly river, comprise the composition of following weight percent:
Polymerize aluminum chloride: 20～60%; Unslaked lime: 5～10%; Sodium carbonate: 5～10%; Diatomite: 10～30%; Chitosan: 1～3%; Carboxymethyl starch CMS:2～5%; Neutral protease: 1～3%; Cement: 10～25%.
The invention belongs to a kind of novel high-efficiency environment friendly flocculation agent, the flocculation agent that above-mentioned raw materials is made by this proportioning adds in black smelly river, calcium aluminate, sodium carbonate in flocculation agent can react rapidly with the calcium hydroxide of life after lime hydration, polymerization generates hydroxy polymer colloid, oxyhydroxide and carbonate deposition, thereby make a large amount of free water change water of constitution into, make to add the rapid multiviscosisty of mud in the black smelly river of flocculation agent and gel.Lime is as coagulant aids, and except regulating pH value, the calcium ion after its dissolving can be adsorbed by the soil ulmin in mud, forms porous web trellis hole frame, thereby improve the compressibility of mud in mud, increases floc strength.In addition, calcium oxide also has the effect of passive metal, can make the heavy metal of ionic condition in alkaline environment, generate precipitation of hydroxide, thereby reduces the activity of heavy metal ion, improves the self-purification capacity of water body; Diatomite, chitosan have the effect of absorption stink or chelating heavy metal; Carboxymethyl starch, neutral protease have cohesion or catalytic decomposition organism, strengthen the effect of microorganism active in water; Cement has curing throw out and increases the effect of medicament proportion.
The using method of above-mentioned high-efficiency environment friendly flocculation agent is: above raw material adds in black smelly river after making flocculation agent by said ratio, stirs, and black smelly river is fully mixed with the flocculation agent adding.
In the present invention, the addition of flocculation agent is according to situation adjustment such as the silt content of black smelly river, pollutant kind, envrionment temperatures, and general addition is mud dry weight 3～5%.Black smelly river after cohesion, as clear as crystal, odorless.
Beneficial effect: each component source of medicament of the present invention is abundant, cheap, economic environmental protection; By the use that combines of each component, not only additive amount of medicament is few, and little on water pH value impact, the former character of mud in water is not changed; Part activated state heavy metal is cured, and is conducive to the increase of sludge activity in water, can greatly improve the self-purification capacity of water body; Integrate absorption, cohesion, chelating, solidify, the several functions such as catalyzed degradation, treatment effect is good, the water body after flocculation sediment is as clear as crystal, odorless.
The ability that adapts to change of water quality is strong, administers sewage, mud simultaneously, and pollutant removal is good, and treatment cycle is short, and later maintenance is simple and expense is low, and water body has lasting self-purification capacity strong, non-secondary pollution.Cutting on dirty basis, use this medicament to there is compared with the prior art very strong persistence.Water quality after treatment can reach corresponding surface water water quality standard.Transparency exceedes 50cm, takes effect very fast, about one month, can take effect.
Embodiment
Below in conjunction with embodiment, the invention will be further elaborated.It should be pointed out that for the person of ordinary skill of the art, under the premise without departing from the principles of the invention, can also make some modification and improvement, these also should be considered as belonging to protection scope of the present invention.
Embodiment 1
For administering the novel high-efficiency environment friendly flocculation agent in black smelly river, comprise the composition of following weight percent:
Polymerize aluminum chloride: 20%; Unslaked lime: 10%; Sodium carbonate: 10%; Diatomite: 30%; Chitosan: 1%; Carboxymethyl starch CMS:2%; Neutral protease: 2%; Cement: 25%.Wherein
Polymerize aluminum chloride: aluminium sesquioxide content is greater than 27%;
Unslaked lime: adopt technical grade unslaked lime, content >=90%;
Sodium carbonate: adopt technical grade sodium carbonate, content >=99%;
Diatomite: SiO
2content>=80%, Fe
2o
3content≤1.5%;
Chitosan: content >=95%, white powder;
Carboxymethyl starch: density 0.4g/cm
3, content>=97%;
Neutral protease: enzyme activity 100,000 u/g, active substance content >=99%, food grade;
Cement: high-alumina cement, one-level, CA-50,525.
When use, allocate and mix according to the ratio of each component in above-mentioned flocculation agent, then add deployed novel high-efficiency environment friendly flocculation agent and process black smelly river, the addition of flocculation agent is mud dry weight 3%, stirs 5min; Finally the river after stirring is left standstill to 1h, detect and obtain afterwards: the river after coagulative precipitation is as clear as crystal, odorless, before processing, the pH value in black smelly river is 7.0; After processing, river pH is 7.1.
Embodiment 2
Raw materials used identical with embodiment 1, just the composition of ratio changes, and is specially:
Polymerize aluminum chloride: 60%; Unslaked lime: 5%; Sodium carbonate: 5%; Diatomite: 10%; Chitosan: 2%; Carboxymethyl starch CMS:5%; Neutral protease: %; Cement: 10%.
When use, allocate and mix according to the ratio of each component in above-mentioned flocculation agent, then add deployed novel high-efficiency environment friendly flocculation agent and process black smelly river, the addition of flocculation agent is mud dry weight 5%, stirs 15min; Finally the river after stirring is left standstill to 1h, detect and obtain afterwards: the river after coagulative precipitation is as clear as crystal, odorless, before processing, the pH value in black smelly river is 7.0; After processing, river pH is 7.1.
Embodiment 3
Raw materials used identical with embodiment 1, just the composition of ratio changes, and is specially:
Polymerize aluminum chloride: 40%; Unslaked lime: 8%; Sodium carbonate: 8%; Diatomite: 20%; Chitosan: 3 %; Carboxymethyl starch CMS:4%; Neutral protease: 1%; Cement: 16%.
When use, allocate and mix according to the ratio of each component in above-mentioned flocculation agent, then add deployed novel high-efficiency environment friendly flocculation agent and process black smelly river, the addition of flocculation agent is mud dry weight 4%, stirs 10min; Finally the river after stirring is left standstill to 1h, detect and obtain afterwards: the river after coagulative precipitation is as clear as crystal, odorless, before processing, the pH value in black smelly river is 7.0; After processing, river pH is 7.1.
Claims (10)
1. a high-efficiency environment friendly flocculation agent of administering for black smelly river, is characterized in that: the component that comprises following weight percent: polymerize aluminum chloride: 20～60%; Unslaked lime: 5～10%; Sodium carbonate: 5～10%; Diatomite: 10～30%; Chitosan: 1～3%; Carboxymethyl starch CMS:2～5%; Neutral protease: 1～3%; Cement: 10～25%.
2. a kind of high-efficiency environment friendly flocculation agent of administering for black smelly river according to claim 1, is characterized in that, in described polymerize aluminum chloride, aluminium sesquioxide content is greater than 27%.
3. a kind of high-efficiency environment friendly flocculation agent of administering for black smelly river according to claim 1, is characterized in that described unslaked lime adopts technical grade unslaked lime, content >=90%.
4. a kind of high-efficiency environment friendly flocculation agent of administering for black smelly river according to claim 1, is characterized in that described sodium carbonate adopts technical grade sodium carbonate, content >=99%.
5. a kind of high-efficiency environment friendly flocculation agent of administering for black smelly river according to claim 1, is characterized in that described diatomite, SiO
2content>=80%, Fe
2o
3content≤1.5%.
6. a kind of high-efficiency environment friendly flocculation agent of administering for black smelly river according to claim 1, is characterized in that, described chitosan, is white powder, content >=95%.
7. a kind of high-efficiency environment friendly flocculation agent of administering for black smelly river according to claim 1, is characterized in that described carboxymethyl starch, density 0.4g/cm
3, content>=97%.
8. a kind of high-efficiency environment friendly flocculation agent of administering for black smelly river according to claim 1, is characterized in that, described neutral protease, is food grade, enzyme activity 100,000 u/g, active substance content >=99%.
9. a kind of high-efficiency environment friendly flocculation agent of administering for black smelly river according to claim 1, is characterized in that, described cement is high-alumina cement, one-level, CA-50,525.
10. the using method of a kind of high-efficiency environment friendly flocculation agent of administering for black smelly river claimed in claim 1, it is characterized in that, ratio according to each component in described flocculation agent is allocated and is mixed, then add deployed novel high-efficiency environment friendly flocculation agent and process black smelly river, the addition of flocculation agent is 3 ~ 5% of mud dry weight, stirs; Finally the river after stirring is left standstill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134838.XA CN103922449B (en) | 2014-04-04 | 2014-04-04 | A kind of high-efficiency environment friendly flocculation agent administered for black smelly river |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134838.XA CN103922449B (en) | 2014-04-04 | 2014-04-04 | A kind of high-efficiency environment friendly flocculation agent administered for black smelly river |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103922449A true CN103922449A (en) | 2014-07-16 |
| CN103922449B CN103922449B (en) | 2015-08-26 |
Family
ID=51140883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410134838.XA Active CN103922449B (en) | 2014-04-04 | 2014-04-04 | A kind of high-efficiency environment friendly flocculation agent administered for black smelly river |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103922449B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071881A (en) * | 2014-07-18 | 2014-10-01 | 廉勇 | Flocculating agent for waste water treatment, and preparation method thereof |
| CN104386827A (en) * | 2014-10-31 | 2015-03-04 | 安徽华亿农牧科技发展有限公司 | Environment-friendly water purifier, preparation and using methods thereof |
| CN104478058A (en) * | 2014-11-04 | 2015-04-01 | 沈礼群 | Pond-lake heavy-metal pesticide fertilizer pollutant solidifying removing agent and preparation method thereof |
| CN105858750A (en) * | 2016-05-31 | 2016-08-17 | 陈萍 | Sewage treatment agent special for coal mine processing and preparation method thereof |
| CN105858751A (en) * | 2016-05-31 | 2016-08-17 | 陈萍 | Sewage treatment agent special for stone mining and processing and preparation method of sewage treatment agent |
| CN105858755A (en) * | 2016-05-31 | 2016-08-17 | 陈萍 | Sewage treating agent special for glass processing and preparation method thereof |
| CN106865639A (en) * | 2017-01-11 | 2017-06-20 | 杭州银江环保科技有限公司 | A kind of water body and in-situ sediment remediation agent and restorative procedure |
| CN109292940A (en) * | 2018-10-31 | 2019-02-01 | 中徽生态环境有限公司 | A kind of environmentally friendly preparation and preparation method thereof for administering city black and odorous water |
| CN109619001A (en) * | 2019-01-09 | 2019-04-16 | 天津市水生动物疫病预防控制中心 | A kind of efficient, non-harmful river crab paddy field aquaculture method |
| CN110921843A (en) * | 2019-12-12 | 2020-03-27 | 佛山科学技术学院 | Preparation method of polymer composite flocculant for printing and dyeing sewage |
| CN111039373A (en) * | 2019-12-23 | 2020-04-21 | 中冶京诚工程技术有限公司 | Flocculating agent for purifying black and odorous water body and preparation method and application thereof |
| CN111689617A (en) * | 2020-07-02 | 2020-09-22 | 苏州中材建设有限公司 | Dry-process cement production line wastewater treatment system |
| CN112520835A (en) * | 2019-09-17 | 2021-03-19 | 欧美新材料(浙江)有限公司 | Integrated remediation agent for black and odorous water body and bottom mud and preparation method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301669A (en) * | 1999-12-30 | 2001-07-04 | 中山大学 | Water purifying method by swirl oxidation and flocculation |
| US20070187334A1 (en) * | 2004-04-19 | 2007-08-16 | Davis Stuart G | Method of clarifying industrial wastewater for the reduction of organic waste content using cationic dispersion polymers combined with powdered activated carbon and anionic flocculent polymers |
| CN101391829A (en) * | 2008-07-31 | 2009-03-25 | 上海市环境科学研究院 | Technique for preparing effervescence type coagulant used in treatment of landscape water pollution |
| CN101648735A (en) * | 2009-09-10 | 2010-02-17 | 南京师范大学 | Environmental functional material applied to electroplating wastewater treatment |
| CN102060363A (en) * | 2010-12-31 | 2011-05-18 | 中国矿业大学 | Method for coagulating coal-bed gas produced water |
| CN102092916A (en) * | 2010-12-16 | 2011-06-15 | 无锡利得生态环境科技有限公司 | Biological solidification and stabilization method of bottom mud in riverways and lakes |
| CN102432091A (en) * | 2011-10-27 | 2012-05-02 | 常州大学 | Preparation method of composite flocculant for blue algae biogas slurry pretreatment |
| CN102557323A (en) * | 2010-10-21 | 2012-07-11 | 江苏绿科生物技术有限公司 | Biological purification method for freshwater aquaculture water environment |
| KR20130012321A (en) * | 2011-07-25 | 2013-02-04 | 한국화학연구원 | Continuous system for removing algaes and suspended solids on water using micro bubble |
| CN103073163A (en) * | 2013-02-01 | 2013-05-01 | 波鹰(厦门)科技有限公司 | Treatment and sludge reduction device and method of de-sizing wastewater |
| CN103359815A (en) * | 2013-07-18 | 2013-10-23 | 南京万德斯环保科技有限公司 | Novel high-efficiency environment-friendly coagulating agent used for treating turbid water or polluted water |
-
2014
- 2014-04-04 CN CN201410134838.XA patent/CN103922449B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301669A (en) * | 1999-12-30 | 2001-07-04 | 中山大学 | Water purifying method by swirl oxidation and flocculation |
| US20070187334A1 (en) * | 2004-04-19 | 2007-08-16 | Davis Stuart G | Method of clarifying industrial wastewater for the reduction of organic waste content using cationic dispersion polymers combined with powdered activated carbon and anionic flocculent polymers |
| CN101391829A (en) * | 2008-07-31 | 2009-03-25 | 上海市环境科学研究院 | Technique for preparing effervescence type coagulant used in treatment of landscape water pollution |
| CN101648735A (en) * | 2009-09-10 | 2010-02-17 | 南京师范大学 | Environmental functional material applied to electroplating wastewater treatment |
| CN102557323A (en) * | 2010-10-21 | 2012-07-11 | 江苏绿科生物技术有限公司 | Biological purification method for freshwater aquaculture water environment |
| CN102092916A (en) * | 2010-12-16 | 2011-06-15 | 无锡利得生态环境科技有限公司 | Biological solidification and stabilization method of bottom mud in riverways and lakes |
| CN102060363A (en) * | 2010-12-31 | 2011-05-18 | 中国矿业大学 | Method for coagulating coal-bed gas produced water |
| KR20130012321A (en) * | 2011-07-25 | 2013-02-04 | 한국화학연구원 | Continuous system for removing algaes and suspended solids on water using micro bubble |
| CN102432091A (en) * | 2011-10-27 | 2012-05-02 | 常州大学 | Preparation method of composite flocculant for blue algae biogas slurry pretreatment |
| CN103073163A (en) * | 2013-02-01 | 2013-05-01 | 波鹰(厦门)科技有限公司 | Treatment and sludge reduction device and method of de-sizing wastewater |
| CN103359815A (en) * | 2013-07-18 | 2013-10-23 | 南京万德斯环保科技有限公司 | Novel high-efficiency environment-friendly coagulating agent used for treating turbid water or polluted water |
Non-Patent Citations (2)
| Title |
|---|
| 何玉凤等: "聚合氯化铝复合羧甲基淀粉絮凝剂的制备及絮凝性能", 《化工新型材料》, vol. 42, no. 1, 31 January 2014 (2014-01-31) * |
| 王威等: "含羧甲基淀粉复合絮凝剂的絮凝性能", 《化工环保》, vol. 29, no. 3, 31 December 2009 (2009-12-31) * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071881A (en) * | 2014-07-18 | 2014-10-01 | 廉勇 | Flocculating agent for waste water treatment, and preparation method thereof |
| CN104386827A (en) * | 2014-10-31 | 2015-03-04 | 安徽华亿农牧科技发展有限公司 | Environment-friendly water purifier, preparation and using methods thereof |
| CN104386827B (en) * | 2014-10-31 | 2016-07-06 | 安徽华亿农牧科技发展有限公司 | A kind of environment-friendly type water purification agent and preparation thereof and using method |
| CN104478058A (en) * | 2014-11-04 | 2015-04-01 | 沈礼群 | Pond-lake heavy-metal pesticide fertilizer pollutant solidifying removing agent and preparation method thereof |
| CN104478058B (en) * | 2014-11-04 | 2016-03-30 | 沈礼群 | A kind of Gou Tang lake heavy metal agriculture chemical pollutes solidification remover and preparation method thereof |
| CN105858755B (en) * | 2016-05-31 | 2018-09-21 | 杭州大业环保科技有限公司 | A kind of dedicated sewage-treating agent of glass processing and preparation method thereof |
| CN105858750A (en) * | 2016-05-31 | 2016-08-17 | 陈萍 | Sewage treatment agent special for coal mine processing and preparation method thereof |
| CN105858751A (en) * | 2016-05-31 | 2016-08-17 | 陈萍 | Sewage treatment agent special for stone mining and processing and preparation method of sewage treatment agent |
| CN105858755A (en) * | 2016-05-31 | 2016-08-17 | 陈萍 | Sewage treating agent special for glass processing and preparation method thereof |
| CN106865639A (en) * | 2017-01-11 | 2017-06-20 | 杭州银江环保科技有限公司 | A kind of water body and in-situ sediment remediation agent and restorative procedure |
| CN109292940A (en) * | 2018-10-31 | 2019-02-01 | 中徽生态环境有限公司 | A kind of environmentally friendly preparation and preparation method thereof for administering city black and odorous water |
| CN109292940B (en) * | 2018-10-31 | 2019-09-13 | 中徽生态环境有限公司 | A kind of environmentally friendly preparation and preparation method thereof for administering city black and odorous water |
| CN109619001A (en) * | 2019-01-09 | 2019-04-16 | 天津市水生动物疫病预防控制中心 | A kind of efficient, non-harmful river crab paddy field aquaculture method |
| CN112520835A (en) * | 2019-09-17 | 2021-03-19 | 欧美新材料(浙江)有限公司 | Integrated remediation agent for black and odorous water body and bottom mud and preparation method |
| CN110921843A (en) * | 2019-12-12 | 2020-03-27 | 佛山科学技术学院 | Preparation method of polymer composite flocculant for printing and dyeing sewage |
| CN110921843B (en) * | 2019-12-12 | 2022-04-15 | 佛山科学技术学院 | Preparation method of polymer composite flocculant for printing and dyeing sewage |
| CN111039373A (en) * | 2019-12-23 | 2020-04-21 | 中冶京诚工程技术有限公司 | Flocculating agent for purifying black and odorous water body and preparation method and application thereof |
| CN111689617A (en) * | 2020-07-02 | 2020-09-22 | 苏州中材建设有限公司 | Dry-process cement production line wastewater treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103922449B (en) | 2015-08-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103922449B (en) | A kind of high-efficiency environment friendly flocculation agent administered for black smelly river | |
| CN103359815B (en) | Novel high-efficiency environment-friendly coagulating agent used for treating turbid water or polluted water | |
| CN104891779B (en) | A kind of Opsonizing method of combined type sludge high-efficiency dehydration | |
| WO2016058437A1 (en) | Treatment method for deep dewatering of sludge | |
| CN105540797B (en) | Efficient water treatment composite flocculant | |
| CN104098250A (en) | Municipal sludge two-stage deep dehydration method combining chemical regulation strengthening preliminary mechanical dehydration and electroosmosis | |
| CN105000680B (en) | Compound water treatment agent | |
| CN103922536B (en) | New method for comprehensive treatment of black and odorous river | |
| CN105314815A (en) | Sludge dewatering conditioning agent and dewatering method thereof | |
| CN109179616A (en) | Natural degradable high-efficiency flocculant and preparation method and application thereof | |
| CN110092569A (en) | A kind of mud dewatering method | |
| CN102452782A (en) | Inorganic composite conditioner for efficient sludge dewatering | |
| CN110395878A (en) | A kind of municipal sludge deep dewatering, solidifying method | |
| CN103145313A (en) | Sludge conditioning agent appropriate for sludge incineration handling and conditioning method | |
| CN105366788A (en) | Water purification agent composition and application thereof | |
| CN104986916A (en) | Process for treating coating waste water of paper making | |
| CN105236539A (en) | Modified clay capable of eliminating red tide with high efficiency | |
| CN104773804A (en) | Preparation method of ecological security flocculating agent for effectively removing phosphorus and algae in eutrophic water body | |
| CN103466810A (en) | Method for polluted river comprehensive treatment | |
| CN103771571A (en) | Sewage treatment flocculating agent and application thereof | |
| CN104150741A (en) | Sludge chemical conditioning method and conditioner | |
| CN103359907A (en) | Novel environment friendly conditioner for deep dehydration of sludge | |
| CN105984928A (en) | Method for preparing polysilicate aluminum ferrite | |
| CN110590121A (en) | Sludge dehydrating agent and sludge dehydrating method | |
| CN201284241Y (en) | Anti-seepage algal inhibition rug for landscape water |
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 |