CN105883964A - Water purification composition as well as preparation method and application thereof - Google Patents
Water purification composition as well as preparation method and application thereof Download PDFInfo
- Publication number
- CN105883964A CN105883964A CN201610296283.8A CN201610296283A CN105883964A CN 105883964 A CN105883964 A CN 105883964A CN 201610296283 A CN201610296283 A CN 201610296283A CN 105883964 A CN105883964 A CN 105883964A
- Authority
- CN
- China
- Prior art keywords
- water purification
- purification composition
- water
- weight portions
- parts
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention provides a water purification composition as well as a preparation method and application thereof. The water purification composition is mainly prepared from the following components in percentage by weight: 5 to 15 parts of iron chloride, 20 to 30 parts of active carbon, 10 to 20 parts of diatomaceous earth, 10 to 20 parts of aluminum sulfate, 2 to 5 parts of a surfactant, 40 to 55 parts of a high molecular polymer and 2 to 8 parts of a pore-forming agent. When the water purification composition provided by the invention is applied to wastewater treatment, the turbidity removing rate of wastewater can reach 95 percent or above, the total phosphorus rate can reach 90 percent or above, the removing rate of COD (Chemical Oxygen Demand) can reach 32 percent or above and the removing rate of BOD (Biochemical Oxygen Demand) can reach 76 percent or above when the adding amount is 200mg/L; the water purification composition provided by the invention has abundant raw material resources and low cost and has a better market application prospect.
Description
Technical field
The invention belongs to water treatment field, relate to a kind of Water purification composition and its preparation method and application.
Background technology
Water is Source of life, water pollution and the shortage of water resource, forces people to focus more on water resource
Protection, and the improvement to waste water.How to make waste water reach discharging standards, be the most urgently to be resolved hurrily
Problem.
At present in wastewater treatment process, process waste water, traditional coagulation-heavy frequently with adding flocculant
Shallow lake-filter-sterilization four-part form water treatment technology can not have been tackled current water and pollute a difficult problem, needs for this to develop
A kind of water purification agent with coacervation and adsorption dual effect, in order to water is polluted and carries out advanced treating.
CN 101979328 A discloses a kind of chitosan composite gel water purifying agent and preparation method thereof, described shell
The gel that polysaccharide pluralgel water purification agent is made up of chitosan solution, cellulose, silica gel and activated carbon；
The mass ratio of described chitosan, cellulose, silica gel and activated carbon is 1:1-2.5:2-3.5:3-5.This invention is clean
Water preparation Nantural non-toxic and have efficient absorption and floculation dual-use function, can do as environment incretion in water
Disturb the deep purifying that thing pollutes to be used, to the clearance of penta sodium pentachlorophenate up to 98.8%, can to the clearance of DDT
Reaching 96%, practicality is stronger.But this invention only discloses this water purification agent and goes specific pollutants in waste water
Except effect, turbidity of wastewater, total phosphorus, the removal effect of COD and BOD are not illustrated.
Therefore, turbidity of wastewater, total phosphorus, COD and BOD are had higher by expectation exploitation one in the art
The water purification agent of clearance.
Summary of the invention
For the deficiencies in the prior art, it is an object of the invention to provide a kind of Water purification composition and preparation side thereof
Method and application.
For reaching this purpose, the present invention by the following technical solutions:
The invention provides a kind of Water purification composition, described Water purification composition is prepared by the raw material of following weight portion
Obtain:
In the Water purification composition of the present invention, the content of iron chloride is 5-15 weight portion, such as 5 weight portions,
6 weight portions, 7 weight portions, 8 weight portions, 9 weight portions, 10 weight portions, 11 weight portions, 12 weight portions,
13 weight portions, 14 weight portions or 15 weight portions.
In the Water purification composition of the present invention, the content of activated carbon is 20-30 weight portion, such as 21 weight
Part, 22 weight portions, 23 weight portions, 24 weight portions, 25 weight portions, 26 weight portions, 27 weight portions, 28
Weight portion, 29 weight portions or 30 weight portions.The grain graininess of activated carbon of the present invention is 80 mesh-120
Mesh, such as 80 mesh, 85 mesh, 90 mesh, 95 mesh, 100 mesh, 105 mesh, 110 mesh, 115 mesh or 120
Mesh.
In the Water purification composition of the present invention, diatomaceous consumption is 10-20 weight portion, such as 10 weight
Part, 11 weight portions, 12 weight portions, 13 weight portions, 14 weight portions, 15 weight portions, 16 weight portions, 17
Weight portion, 18 weight portions, 19 weight portions or 20 weight portions.
In the Water purification composition of the present invention, the content of aluminum sulfate is 10-20 weight portion, such as 10 weight
Part, 11 weight portions, 12 weight portions, 13 weight portions, 14 weight portions, 15 weight portions, 16 weight portions, 17
Weight portion, 18 weight portions, 19 weight portions or 20 weight portions.
In the Water purification composition of the present invention, the consumption of surfactant is 2-5 weight portion, such as 2 weight
Part, 2.5 weight portions, 3 weight portions, 3.5 weight portions, 4 weight portions, 4.5 weight portions or 5 weight portions.
Preferably, described surfactant be nonionic surfactant, anionic surfactant or
Cationic surface active agent.
In the Water purification composition of the present invention, the consumption of high molecular polymer is 40-55 weight portion, such as 40
Weight portion, 43 weight portions, 45 weight portions, 48 weight portions, 50 weight portions, 52 weight portions, 54 weight portions
Or 55 weight portions.
Preferably, described high molecular polymer is polylactic acid, pla-pcl, poly lactic-co-glycolic acid copolymerization
Any one or the combination of at least two, preferably Poly(D,L-lactide-co-glycolide in thing or polyurethane.
Preferably, the number-average molecular weight of described high molecular polymer is 5000-20000, such as 5000,
7000,9000,10000,12000,14000,18000 or 20000.
In the Water purification composition of the present invention, the consumption of porogen is 2-8 weight portion, such as 2 weight portions, 3
Weight portion, 4 weight portions, 5 weight portions, 6 weight portions, 7 weight portions or 8 weight portions.
In the present invention, the preparation method of described Water purification composition is: by iron chloride, activated carbon, diatom
Soil, aluminum sulfate are dispersed in water, and then add surfactant and are stirred, put into high molecular polymerization afterwards
Thing and porogen carry out ultrasonic, then remove water, are dried to obtain described Water purification composition.
In the Water purification composition of the present invention, iron chloride is a kind of high efficiency low cost flocculant, and it is the most heavy to have
Shallow lake heavy metal and sulfide, decolouring, deodorize, oil removing, sterilization, dephosphorization, reduction water outlet COD and BOD
Etc. effect；Activated carbon and kieselguhr are the adsorbents of a kind of conventional application, by organic in itself characteristic and water
The impact of the factors such as physical property matter, and can not the most effectively remove the Organic substance in water；Aluminum sulfate is as one
Precipitant and water purification agent are used for the process of waste water.High molecular polymer is water purification group of playing stably in the present invention
Other components are formed certain coating function by the effect of compound, make to be coated with not under the effect of porogen
Formed and close, both ensured that each component contacted with each other, work in coordination with and play a role, the pine of spheroidal can be formed again
Powder composition, is prone to from water remove after water purification, few residual, the present invention by these components according to certain
Proportioning combines and obtains a kind of Water purification composition.The Water purification composition of the present invention is that one has efficient absorption
And the bifunctional compound Water purification composition of floculation.
The Water purification composition of the present invention can be used for waste water and processes, and being applied to dosage during waste water is every liter of waste water
200-400mg, such as 200mg/L, 220mg/L, 240mg/L, 260mg/L, 280mg/L,
300mg/L, 320mg/L, 340mg/L, 360mg/L, 380mg/L or 400mg/L.
Relative to prior art, the method have the advantages that
The Water purification composition of the present invention is when waste water processes, when dosage is 200mg/L, turbid to waste water
Degree clearance up to more than 95%, total tp removal rate up to more than 90%, the clearance of COD up to 32% with
On, BOD clearance is more than 76%, and the abundant raw material source of Water purification composition of the present invention, cost
Low, there is preferable market application foreground.
Detailed description of the invention
Technical scheme is further illustrated below by detailed description of the invention.Those skilled in the art
It will be clearly understood that the only help of described embodiment understands the present invention, it is not construed as the concrete limit to the present invention
System.
Embodiment 1
In the present embodiment, Water purification composition is prepared by following raw material:
Chitosan, iron chloride, activated carbon, kieselguhr, aluminum sulfate are dispersed in water, then add surface
Activating agent is stirred, and puts into high molecular polymer afterwards and porogen carries out ultrasonic, then remove water, dry
Dry obtain Water purification composition.
Embodiment 2
In the present embodiment, Water purification composition is prepared by following raw material:
Chitosan, iron chloride, activated carbon, kieselguhr, aluminum sulfate are dispersed in water, then add surface
Activating agent is stirred, and puts into high molecular polymer afterwards and porogen carries out ultrasonic, then remove water, dry
Dry obtain Water purification composition.
Embodiment 3
In the present embodiment, Water purification composition is prepared by following raw material:
Chitosan, iron chloride, activated carbon, kieselguhr, aluminum sulfate are dispersed in water, then add surface
Activating agent is stirred, and puts into high molecular polymer afterwards and porogen carries out ultrasonic, then remove water, dry
Dry obtain Water purification composition.
Embodiment 4
In the present embodiment, Water purification composition is prepared by following raw material:
Chitosan, iron chloride, activated carbon, kieselguhr, aluminum sulfate are dispersed in water, then add surface
Activating agent is stirred, and puts into high molecular polymer afterwards and porogen carries out ultrasonic, then remove water, dry
Dry obtain Water purification composition.
Embodiment 5
In the present embodiment, Water purification composition is prepared by following raw material:
Chitosan, iron chloride, activated carbon, kieselguhr, aluminum sulfate are dispersed in water, then add surface
Activating agent is stirred, and puts into high molecular polymer afterwards and porogen carries out ultrasonic, then remove water, dry
Dry obtain Water purification composition.
Comparative example 1
In this comparative example, described Water purification composition is added without high molecular polymer, remaining raw material and raw material
Consumption and preparation method are with embodiment 1.
Comparative example 2
In this comparative example, described Water purification composition is added without activated carbon and kieselguhr, remaining raw material and former
Material consumption and preparation method are with embodiment 1.
Comparative example 3
In this comparative example, being added without kieselguhr in described Water purification composition, the consumption of activated carbon is 35 weights
Amount part, remaining raw material and raw material dosage and preparation method are with embodiment 1.
Comparative example 4
In this comparative example, being added without activated carbon in described Water purification composition, diatomaceous consumption is 35 weights
Amount part, remaining raw material and raw material dosage and preparation method are with embodiment 1.
It is used for waste water is processed by Water purification composition prepared by embodiment 1-5 and comparative example 1-4, its knot
Fruit is as shown in table 1.
Table 1 turbidity of wastewater clearance, total tp removal rate, COD clearance and BOD clearance
As shown in Table 1, turbidity of wastewater is removed by the Water purification composition that prepared by embodiment of the present invention 1-5
Rate, total tp removal rate, COD clearance and BOD clearance are clean obviously higher than prepared by comparative example 1-5
Water composition, and by the contrast of embodiment 1 and comparative example 1-7 it can be seen that macromolecule in the present invention
Adding of polymer has raising effect for the water treatment effect improving Water purification composition, and shell gathers
Sugar, activated carbon and kieselguhr three have synergism for the raising of water treatment effect.
Therefore, the Water purification composition of the present invention, when being applied to waste water and processing, at relatively low dosage
(200mg/L) under, to turbidity of wastewater clearance up to more than 95%, total tp removal rate up to more than 90%,
The clearance of COD is up to more than 32%, and BOD clearance is more than 76%, and water purification of the present invention combination
The abundant raw material source of thing, low cost, there is preferable market application foreground.
Applicant states, the present invention illustrates the Water purification composition of the present invention by above-described embodiment, but this
Bright it is not limited to above-described embodiment, does not i.e. mean that the present invention has to rely on above-described embodiment and could implement.
Person of ordinary skill in the field is it will be clearly understood that any improvement in the present invention, each former to product of the present invention
The equivalence of material is replaced and the interpolation of auxiliary element, concrete way choice etc., all falls within the protection model of the present invention
Within the scope of enclosing and disclosing.
Claims (7)
1. a Water purification composition, it is characterised in that described Water purification composition is by the raw material of following weight portion
Prepare:
Water purification composition the most according to claim 1, it is characterised in that the granule of described activated carbon
Granularity is 80 mesh-120 mesh.
Water purification composition the most according to claim 1 and 2, it is characterised in that described high molecular polymerization
Thing be in polylactic acid, pla-pcl, Poly(D,L-lactide-co-glycolide or polyurethane any one or extremely
The combination of few two kinds, preferably Poly(D,L-lactide-co-glycolide.
4. according to the Water purification composition according to any one of claim 1-3, it is characterised in that described high score
The number-average molecular weight of sub-polymer is 5000-20000.
5. according to the Water purification composition according to any one of claim 1-4, it is characterised in that described surface
Activating agent is nonionic surfactant, anionic surfactant or cationic surface active agent.
6., according to the preparation method of the Water purification composition according to any one of claim 1-5, its feature exists
In, described method is: chitosan, iron chloride, activated carbon, kieselguhr, aluminum sulfate are dispersed in water,
Then add surfactant to be stirred, put into high molecular polymer afterwards and porogen carries out ultrasonic, and
Rear removing water, is dried to obtain described Water purification composition.
7. according to the application in the treatment of waste water of the Water purification composition according to any one of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296283.8A CN105883964A (en) | 2016-05-04 | 2016-05-04 | Water purification composition as well as preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296283.8A CN105883964A (en) | 2016-05-04 | 2016-05-04 | Water purification composition as well as preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105883964A true CN105883964A (en) | 2016-08-24 |
Family
ID=56703319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610296283.8A Pending CN105883964A (en) | 2016-05-04 | 2016-05-04 | Water purification composition as well as preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105883964A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975455A (en) * | 2017-05-08 | 2017-07-25 | 宁波市川宁环保科技有限公司 | A kind of calcium matrix activated carbon absorption phosphor-curing agent and preparation method thereof |
| CN107117682A (en) * | 2017-06-28 | 2017-09-01 | 华杰 | A kind of water purification agent composition and its application |
| CN107117697A (en) * | 2017-06-30 | 2017-09-01 | 朱燕萍 | A kind of waste water treating agent and its application |
| CN107162142A (en) * | 2017-06-30 | 2017-09-15 | 朱燕萍 | A kind of Water purification composition and its preparation method and application |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438972A (en) * | 2000-06-27 | 2003-08-27 | 宝洁公司 | Water treatment compositions |
| CN101746907A (en) * | 2008-12-01 | 2010-06-23 | 中国石油化工股份有限公司 | Silicon-containing wastewater treatment method |
| CN101935195A (en) * | 2010-09-01 | 2011-01-05 | 郑俊 | Porous phosphorus removing ceramic granules with function of slowly releasing alkali and preparation method thereof |
| CN102815853A (en) * | 2011-06-10 | 2012-12-12 | 湖北中科博策新材料研究院 | Harmless mud processing method for sewage treatment plant |
| CN103043821A (en) * | 2012-12-27 | 2013-04-17 | 苏州信望膜技术有限公司 | Deep treatment method for printing ink wastewater by membrane method |
| CN103435424A (en) * | 2013-09-02 | 2013-12-11 | 济宁道淼新材料科技有限公司 | Controlled release coating material containing polymer micro nanoparticles |
| US20140138319A1 (en) * | 2012-11-21 | 2014-05-22 | Patty Fu-Giles | Dental Amalgam Filter Including Tungsten Disulfide Nanopowder |
| CN103896389A (en) * | 2014-03-26 | 2014-07-02 | 华南师范大学 | Controlled release type potassium ferrate composite as well as preparation method and application thereof |
| CN104108775A (en) * | 2014-07-10 | 2014-10-22 | 杭州电子科技大学 | Composite reagent for treating recycled water of printing and dyeing wastewater and application method of composite reagent |
| CN104291935A (en) * | 2014-09-19 | 2015-01-21 | 成都新柯力化工科技有限公司 | Application of polymer microspheres in controlled-release fertilizer |
| CN105060430A (en) * | 2015-07-29 | 2015-11-18 | 西安建筑科技大学 | Sustain-released coagulant and device using same to process initial rainwater |
| CN105254145A (en) * | 2015-08-18 | 2016-01-20 | 海南卓越生物有限公司 | Capsule-type active calcium emulsion and preparation method thereof |
| CN105271488A (en) * | 2014-06-27 | 2016-01-27 | 南京益佳特科技发展有限公司 | Water purifying agent for treating benzene-containing sewage and preparation method for water purifying agent |
| CN105366788A (en) * | 2015-10-30 | 2016-03-02 | 朱忠良 | Water purification agent composition and application thereof |
-
2016
- 2016-05-04 CN CN201610296283.8A patent/CN105883964A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438972A (en) * | 2000-06-27 | 2003-08-27 | 宝洁公司 | Water treatment compositions |
| CN101746907A (en) * | 2008-12-01 | 2010-06-23 | 中国石油化工股份有限公司 | Silicon-containing wastewater treatment method |
| CN101935195A (en) * | 2010-09-01 | 2011-01-05 | 郑俊 | Porous phosphorus removing ceramic granules with function of slowly releasing alkali and preparation method thereof |
| CN102815853A (en) * | 2011-06-10 | 2012-12-12 | 湖北中科博策新材料研究院 | Harmless mud processing method for sewage treatment plant |
| US20140138319A1 (en) * | 2012-11-21 | 2014-05-22 | Patty Fu-Giles | Dental Amalgam Filter Including Tungsten Disulfide Nanopowder |
| CN103043821A (en) * | 2012-12-27 | 2013-04-17 | 苏州信望膜技术有限公司 | Deep treatment method for printing ink wastewater by membrane method |
| CN103435424A (en) * | 2013-09-02 | 2013-12-11 | 济宁道淼新材料科技有限公司 | Controlled release coating material containing polymer micro nanoparticles |
| CN103896389A (en) * | 2014-03-26 | 2014-07-02 | 华南师范大学 | Controlled release type potassium ferrate composite as well as preparation method and application thereof |
| CN105271488A (en) * | 2014-06-27 | 2016-01-27 | 南京益佳特科技发展有限公司 | Water purifying agent for treating benzene-containing sewage and preparation method for water purifying agent |
| CN104108775A (en) * | 2014-07-10 | 2014-10-22 | 杭州电子科技大学 | Composite reagent for treating recycled water of printing and dyeing wastewater and application method of composite reagent |
| CN104291935A (en) * | 2014-09-19 | 2015-01-21 | 成都新柯力化工科技有限公司 | Application of polymer microspheres in controlled-release fertilizer |
| CN105060430A (en) * | 2015-07-29 | 2015-11-18 | 西安建筑科技大学 | Sustain-released coagulant and device using same to process initial rainwater |
| CN105254145A (en) * | 2015-08-18 | 2016-01-20 | 海南卓越生物有限公司 | Capsule-type active calcium emulsion and preparation method thereof |
| CN105366788A (en) * | 2015-10-30 | 2016-03-02 | 朱忠良 | Water purification agent composition and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| 梁亮: "《化学化工专业实验》", 31 March 2009, 化学工业出版社 * |
| 郑俊民: "《药用高分子材料学》", 31 August 2004, 中国医药科技出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975455A (en) * | 2017-05-08 | 2017-07-25 | 宁波市川宁环保科技有限公司 | A kind of calcium matrix activated carbon absorption phosphor-curing agent and preparation method thereof |
| CN107117682A (en) * | 2017-06-28 | 2017-09-01 | 华杰 | A kind of water purification agent composition and its application |
| CN107117697A (en) * | 2017-06-30 | 2017-09-01 | 朱燕萍 | A kind of waste water treating agent and its application |
| CN107162142A (en) * | 2017-06-30 | 2017-09-15 | 朱燕萍 | A kind of Water purification composition and its preparation method and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105800722A (en) | Wastewater treatment agent as well as preparation method and application thereof | |
| CN105366788A (en) | Water purification agent composition and application thereof | |
| CN105883964A (en) | Water purification composition as well as preparation method and application thereof | |
| CN104445635B (en) | Efficient biological water purifying agent as well as preparation method and use method thereof | |
| CN102838195A (en) | Composite flocculant for sewage treatment | |
| CN105253972A (en) | Wastewater treatment agent and application of wastewater treatment agent | |
| CN101882496A (en) | Chitosan-polyacrylamide magnetic composite microsphere material, preparation method and application thereof | |
| CN104591345A (en) | Plaster-base cyanobacteria treating agent and preparation method thereof | |
| Uçar et al. | Use of aluminium hydroxide sludge as adsorbents for the removal of reactive dyes: equilibrium, thermodynamic, and kinetic studies | |
| CN108246261A (en) | A kind of alginate/chitosan hydrogel microsphere preparation method for heavy metal arsenic absorption | |
| CN104998618A (en) | Method for preparing hydrothermal biomass charcoal from pecan shells | |
| CN105198056A (en) | Paper making waste water treating agent and preparation method thereof | |
| CN104925929B (en) | A kind of composite flocculation agent for treatment of dyeing wastewater | |
| CN106362701A (en) | Biomass-based heavy metal porous chelate fiber, and preparation method, application and application method thereof | |
| CN106673165A (en) | High-molecular chitosan composite flocculant | |
| CN106044988A (en) | Flocculant for sewage treatment | |
| CN102408145B (en) | Composite flocculant and use thereof | |
| CN107162142A (en) | A kind of Water purification composition and its preparation method and application | |
| CN106379955A (en) | Waste water treating agent and application thereof | |
| CN100431688C (en) | Modified fly ash absorbent and method for processing nitrophenol polymerization inhibitor production waste water | |
| CN108394942A (en) | A kind of composite drug and preparation method thereof of river lake ecological management | |
| CN107986409A (en) | Handle the composite flocculation agent of sanitary sewage | |
| CN108483606B (en) | Textile sewage impurity coagulant and preparation method thereof | |
| CN106630196A (en) | Modified attapulgite water purifying agent and preparation method thereof | |
| CN106542626B (en) | Printing and dyeing sewage flocculant and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160824 |
|
| RJ01 | Rejection of invention patent application after publication |