CN104176796A - Dephosphorizing flocculating agent and preparation and application thereof - Google Patents
Dephosphorizing flocculating agent and preparation and application thereof Download PDFInfo
- Publication number
- CN104176796A CN104176796A CN201410454136.XA CN201410454136A CN104176796A CN 104176796 A CN104176796 A CN 104176796A CN 201410454136 A CN201410454136 A CN 201410454136A CN 104176796 A CN104176796 A CN 104176796A
- Authority
- CN
- China
- Prior art keywords
- mixture
- powder
- modified chitosan
- gelatin
- flocculation
- 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 dephosphorizing flocculating agent, and a preparation and an application thereof, and belongs to the technical field of sewage treatment. Modified chitosan is adopted as a carrier, is matched with a trace of tea polyphenol, gelatin and nano-aluminum powder, and is combined with an electrochemical technique, so as to absorb and participate phosphorous in rural eutrophic water, and macromolecular substances in the sewage are subjected to flocculation degradation. The dephosphorizing flocculating agent has the characteristics of strong flocculation ability, strong phosphorus removal ability, high efficiency and the like, is suitable for various types of water quality, is especially suitable for participation of eutrophic sewage with high phosphorus substance content and removal of phosphorus substances, landfill leachate and backwash waste, is low in cost, and can be recycled.
Description
Technical field
The present invention relates to a kind of dephosphorization flocculating purifying agent and preparation and application thereof, be particularly conducive to phosphorous higher domestic sewage in rural areas by using and administer, especially eutrophic pollution is administered early stage, belongs to technical field of sewage.
Background technology
Lake eutrophication problem, because of the complicacy of himself, also has a lot of mechanism to be not yet familiar with by people.At present, still lack ripe theory for the research of the shallow lake eutrophication phenomenon with inundation feature in the world.But generally speaking,, the generation of water body in lake eutrophication, is mainly to cause because the nutritive element such as nitrogen, phosphorus in water increases.And the main source of phosphoric is sanitary sewage, particularly in rural area, because environmental consciousness is relatively thin, use the rich phosphorus situation such as wash clothes still relatively many, the phosphorus in river course, rural area pollutes more serious comparatively speaking.
How to remove the phosphoric in water, there are in the prior art a lot of solutions, adopt electric flocculence to remove ammonia nitrogen and the phosphorus in waste water, battery lead plate adopts aluminium sheet or stainless steel plate, study electric flocculation dephosphorization thermodynamics and dynamics process, investigated the impact of different technical parameters on ammonia nitrogen and phosphorus removal effect.Result shows: for aluminium electrode, stainless steel electrode is more suitable for electricity flocculation and removes ammonia nitrogen and phosphorus.But make merely electricity consumption flocculence make a return journey and denitrogenate phosphorus, speed is slower, and suitability is poor.
Although eutrophic pollution causes by nitrogen and phosphorus content in water is more, in the time solving eutrophic pollution, because water body eutrophication is when serious, lake can be silted up by some numerous raw plant and remains thereof, becomes marsh even dryly.Local sea area becomes " Dead Sea ", or occurs " red tide " phenomenon.Prevent and treat eutrophication, must control the content of nitrogen and phosphorous that enters water body, and flocculation sediment has also been realized and having been taken stopgap measures in effecting a permanent cure.
20kHz ultrasonication tealeaves 10min, the proterties indifference of gained tea-polyphenol sample, do not change the structure of tea-polyphenol and the each component of catechin yet, and the raising that the extraction yield of tea-polyphenol and catechin extracts 30min than water extraction is more than 40%, utilize ul-trasonic irradiation, just can high efficiency extraction effective content of tea under cold condition, this technology not only can fine maintenance tealeaves original local flavor, the destruction of reducing effective constituent, can obtain again very high extraction efficiency simultaneously.
The present invention adopts ultrasonic wave to process modified chitosan, can significantly increase its flocculating effect.
Summary of the invention
There is for overcoming existing traditional phosphate eliminating flocculant the defect that assimilated efficiency is on the low side, production cost is too high, do not have specific aim to overcome to eutrophic pollution material pollution degraded, preparation high added value, eco-friendly eutrophic pollution thing flocculation agent, the invention provides dephosphorization flocculating purifying agent and the application method thereof of a kind of modified chitosan as carrier.
Described dephosphorization flocculating purifying agent contains: following per-cent is mass ratio:
Old tea powder: 1-3%;
Modified chitosan mixture: 19-28%;
Gelatin: 2-5%;
Magnesium chloride: 0.5-2%;
Zeolite powder.Above-mentioned substance is mixed and is obtained dephosphorization flocculating purifying agent.
In one embodiment of the present invention, dephosphorization flocculation contains the old tea powder of 1-3% only, 19-28% modified chitosan mixture, and 2-5% gelatin, 0.5-2% magnesium chloride, zeolite powder complements to 100%.
In another embodiment of the present invention, dephosphorization flocculating purifying agent contains: old tea powder 3%; Modified chitosan mixture 28%; Gelatin 5%; Magnesium chloride: 0.7%; Adopt zeolite powder to complement to 100%.
In another embodiment of the present invention, dephosphorization flocculating purifying agent contains: old tea powder 2%; Modified chitosan mixture 22%; Gelatin 3%; Magnesium chloride: 0.7%; Adopt zeolite powder to complement to 100%.
Described old tea powder mainly adopts the 1-3 tea tree Lao Ye in age, collects the leaf sheet that will prune on the tea tree of cutting down, to recycle these by the leaf being pruned away.Be crushed to 30-80 order, airtight oven dry, grinding powder, water content is controlled in 15%.
The preparation of described modified chitosan mixture is to get in mass ratio chitosan 7-12 part, nanometer aluminium powder 0.5-1.2 part, old tea powder 4-6 part, be uniformly mixed, 15-30kHz ultrasonication mixture 10-15 minute, after taking-up, carry out far infrared heating technology, make the temperature of mixture reach rapidly 50-70 DEG C, and carry out fully stirring and stirring, spray in mass ratio during this time the 0.1-0.3mol/L sodium hydroxide of the 0.05%-0.15% of total mixture quality, sodium hydroxide adds atomizer with the solution form of 0.1-0.3mol/L, mixture is fully absorbed, process after 12-15 minute, take out, insert in lucifuge air-tight bottle.
In one embodiment of the invention, the preparation of described modified chitosan mixture is to get chitosan, nanometer aluminium powder, old tea powder by the mass ratio of 10:1:5, be uniformly mixed, 20kHz ultrasonication mixture 10 minutes, after taking-up, carry out far infrared heating technology, make the temperature of mixture reach rapidly 50-70 DEG C, and carry out fully stirring and stirring, spray in mass ratio during this time the 0.1mol/L sodium hydroxide solution of 0.05%-0.15%, mixture is fully absorbed, process after 15 minutes, to obtain final product.
In spray process, produce series of chemical, be mainly local strong basicity and can promote organically blending of the materials such as chitosan and nanometer aluminium powder, old tea powder, promote its phosphorus removal property, and remarkable enhanced flocculation effect, the specific aim of phosphorus substance is absorbed and strengthened more than 35%.
Old tea powder provides a certain amount of Mierocrystalline cellulose, under weakly alkaline environment (alkaline matter of product is sodium hydroxide), easily part forms Xylo-Mucine, Xylo-Mucine can form common condensation product with gelatin, also can precipitate for chitosan and aluminium hydroxide the more material of macromolecule when the flocculation, better than independent use tea-polyphenol, catechin effect.
There is bonding action in the excessive aluminium powder of appropriateness and chitosan, inorganic aluminum oxide is dispersed in chitosan, compares with the mixing material of chitosan and chitosan and Al2O3, and adsorption rate improves more than 16%.Chitosan is in dilute acid soln, amino meeting make it with positive charge in conjunction with proton, thereby makes chitosan also with a large amount of positive charges, shows the performance of cationic flocculant, and nanometer aluminium powder can significantly strengthen the performance of its positively charged ion flocculation, this is also one of reason of selecting nanometer aluminium powder.Modified chitosan, be mainly by with the abundant dispersing and mixing of nanometer aluminium powder, and use infrared rays oxidation technology, make the abundant combination of aluminium powder and chitosan, tea-polyphenol is material as a supplement, strengthens its conjugation.
The effect of magnesium chloride is to provide magnesium ion, because electrochemical action, nitrogen phosphorus has after certain gathering, can in solution, form rapidly struvite precipitation, and particularly the zeolite in flocculation agent is combined, and enters precipitation.
Second technical problem that the present invention will solve is to provide a kind of method of applying described dephosphorization flocculating purifying agent processing domestic sewage in rural areas by using.
In one embodiment of the invention, described method is in domestic sewage in rural areas by using, to add the flocculation agent of 0.05-1.5% (g/100mL), adopts electro-flucculation process to carry out flocculation treatment.
Under room temperature, domestic sewage in rural areas by using sampling detects phosphorus content, if reach deep treatment standard or special improvement requirement, near corresponding process points, set up flocculation sedimentation tank, set up stainless steel electrode at pool side, electrode distance is 0.5-2 rice, adopt stainless steel electrode to carry out electricity flocculation dephosphorization, particularly stainless steel electrode coordinates after nanometer aluminium powder, can greatly increase electrochemical action in water, forms agglutinating matter.
Increase electricity flocculation electric current contributes to the removal of ammonia nitrogen and phosphorus, and electric current too greatly easily causes danger, the too little regulation effect that do not reach again, the strength of current that the present invention coordinates is 5-10mA, polar plate spacing 1m, the initial pH of solution is less on tp removal rate impact, and controlling pH is between 5.5-8.
Coordinate after this flocculation agent, the phosphorus that electricity flocculence is removed same amount is not compared with using the electro-flucculation process of this flocculation agent, the energy consumption of the phosphorus of removal same amount is much smaller, under normal circumstances, the energy consumption of removing phosphorus is 0.15～0.50kWh./g, and coordinate after this flocculating purifying agent, it can consume energy and be reduced to 0.01～0.15kWh./g.
The present invention has adopted modified chitosan as carrier, coordinates micro-tea-polyphenol, gelatin, nanometer aluminium powder, and combined with electrochemical technology, the phosphorus in the eutrophy sewage of rural area is absorbed and is precipitated, to the degraded of flocculating of the macromolecular substance in sewage.The flocculation agent that the inventive method obtains is applied to water treatment system, have flocculation ability strong, remove that phosphorus ability is strong, efficiency high, be applicable to various water quality, be particularly useful for the precipitation of eutrophy sewage and the removal of phosphorus containg substances that phosphorus containg substances is higher, percolate, backwashing wastewater, this flocculation agent cost is lower, and can recycle.
Compared with prior art, the present invention is deep phosphorous removal simultaneously, break traditions and prepare the pure Polymer Synthesizing pattern of waste water flocculant, in the raw material of preparing waste water flocculant, introduce comprehensively modifying chitosan, as molecule basic framework, improve the biodegradable performance of traditional flocculant, reduce the production cost of waste water flocculant, promote flocculation efficiency, and there is important environment, society and economic benefit.
Embodiment
Embodiment 1
Get chitosan, nanometer aluminium powder, old tea powder, be uniformly mixed by the mass ratio of 10:1:5,20kHz ultrasonication mixture 10 minutes, extracts tea-polyphenol, the catechin in tealeaves and promotes chitin modified.After taking-up, insert in far-infrared baking oven, adopt far infrared heating technology, make the temperature of mixture reach rapidly 50-55 DEG C, and carry out fully stirring and stirring, using during this time the spray probe of inserting far-infrared baking oven, atomization sprays into 0.12% 0.1mol/L sodium hydroxide solution in mass ratio, make the abundant uniform absorption of mixture, stir about 5 minutes, leaves standstill after 15 minutes rapid cooling taking-up, obtain modified chitosan mixture, insert in lucifuge air-tight bottle for subsequent use.
Embodiment 2
Get embodiment 1 modified chitosan mixture, carry out following quality proportioning, obtain eutrophic pollution waste water flocculating scavenging agent 1
Old tea powder: 3%
Modified chitosan mixture: 28%
Gelatin: 5%
Magnesium chloride: 0.7%
Remainder adopts zeolite powder to be supplemented to 100% as basic substance.
Embodiment 3
Get embodiment 1 modified chitosan mixture, carry out following quality than proportioning, obtain eutrophic pollution waste water flocculating scavenging agent 2
Old tea powder: 2%
Modified chitosan mixture: 22%
Gelatin: 3%
Magnesium chloride: 0.7%
Remainder adopts zeolite powder to be supplemented to 100% as basic substance.
Embodiment 4
In the high pollution domestic sewage in rural areas by using 1000mL of phosphorus content 200-300mg/L, add flocculation agent 0.5g obtained in embodiment 2, after adopting electric flocculence flocculation sediment to finish dealing with, through detecting, remove the Energy Intensity Reduction of phosphorus to 0.08kWh./g, reduce energy consumption nearly 80%, flocculation sediment material is compared the electric flocculence of independent employing increases by 10%, and tp removal rate increases by 33%.
In solution, phosphorus content detection method adopts phospho-molybdic acid quinoline titrimetry method.
Embodiment 5
The high pollution domestic sewage in rural areas by using 1000mL of phosphorus content 150-280mg/L, adopt electric flocculence processing, add flocculation agent 0.5g obtained in embodiment 3, after flocculation sediment is finished dealing with, through detecting, remove the Energy Intensity Reduction of phosphorus to 0.03kWh./g, reduce energy consumption nearly 90%, flocculation sediment effect increases by 25%, and tp removal rate increases respectively 15%.
Although the present invention with preferred embodiment openly as above; but it is not in order to limit the present invention, any person skilled in the art, without departing from the spirit and scope of the present invention; all can do various changes and modification, therefore protection scope of the present invention should be with being as the criterion that claims were defined.
Claims (9)
1. a dephosphorization flocculating purifying agent, is characterized in that, contains in mass ratio the old tea powder of following component: 1-3%, 19-28% modified chitosan mixture, 2-5% gelatin, 0.5-2% magnesium chloride, zeolite powder.
2. dephosphorization flocculating purifying agent according to claim 1, is characterized in that, contains the old tea powder of 1-3%, 19-28% modified chitosan mixture, and 2-5% gelatin, 0.5-2% magnesium chloride, zeolite powder complements to 100%.
3. phosphate eliminating flocculant according to claim 1, is characterized in that, containing old tea powder 3%, modified chitosan mixture 28%, gelatin 5%, magnesium chloride 0.7%, adopts zeolite powder to complement to 100%.
4. phosphate eliminating flocculant according to claim 1, is characterized in that, containing old tea powder 2%, modified chitosan mixture 22%, gelatin 3%, magnesium chloride 0.7%, adopts zeolite powder to complement to 100%.
5. according to the arbitrary described dephosphorization flocculating purifying agent of claim 1-4, it is characterized in that, the preparation of described old tea powder is to adopt on the 1-3 tea tree tea tree in age, to need the leaf of tea tree that pruned away, is crushed to 30-80 order, airtight oven dry, grinding powder, and water content is controlled in 15%.
6. according to the arbitrary described dephosphorization flocculating purifying agent of claim 1-4, it is characterized in that, the preparation of described modified chitosan mixture is that 7-12:0.5-1.2:4-6 gets chitosan in mass ratio, nanometer aluminium powder, old tea powder, be uniformly mixed, 15-30kHz ultrasonication mixture 10-15 minute, after taking-up, carry out far infrared heating technology, make the temperature of mixture reach rapidly 50-70 DEG C, and carry out fully stirring and stirring, spray in mass ratio during this time the 0.1-0.3mol/L sodium hydroxide solution of 0.05%-0.15%, mixture is fully absorbed, process after 12-15 minute, take out and get final product.
7. dephosphorization flocculating purifying agent according to claim 6, it is characterized in that, the preparation of described modified chitosan mixture is to get chitosan, nanometer aluminium powder, old tea powder by the mass ratio of 10:1:5, be uniformly mixed, 20kHz ultrasonication mixture 10 minutes, after taking-up, carry out far infrared heating technology, make the temperature of mixture reach rapidly 50-70 DEG C, and carry out fully stirring and stirring, spray in mass ratio during this time the 0.1mol/L sodium hydroxide solution of 0.05%-0.15%, mixture is fully absorbed, process after 15 minutes, take out and get final product.
8. the arbitrary described phosphate eliminating flocculant of claim 1-4 is at the application method of processing in domestic sewage in rural areas by using.
9. method according to claim 8, is characterized in that, to the flocculation agent that adds 0.05-1.5% in domestic sewage in rural areas by using, adopts electro-flucculation process to carry out flocculation treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410454136.XA CN104176796B (en) | 2014-09-05 | 2014-09-05 | A kind of dephosphorization flocculating purifying agent and preparation and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410454136.XA CN104176796B (en) | 2014-09-05 | 2014-09-05 | A kind of dephosphorization flocculating purifying agent and preparation and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104176796A true CN104176796A (en) | 2014-12-03 |
| CN104176796B CN104176796B (en) | 2016-08-24 |
Family
ID=51958187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410454136.XA Active CN104176796B (en) | 2014-09-05 | 2014-09-05 | A kind of dephosphorization flocculating purifying agent and preparation and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104176796B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417651A (en) * | 2016-01-07 | 2016-03-23 | 苏州法斯特信息科技有限公司 | Tea tree leaf extractive water purification agent and preparation method thereof |
| CN106630060A (en) * | 2016-12-14 | 2017-05-10 | 吴银娣 | Sewage treatment flocculant |
| CN107963689A (en) * | 2017-11-22 | 2018-04-27 | 宿州市逢源生物科技有限公司 | A kind of eutrophic water body cleanser and preparation method thereof |
| CN109809545A (en) * | 2019-03-27 | 2019-05-28 | 北京尚水清源水处理技术有限公司 | A kind of preparation method of efficient dephosphorization coagulant |
| CN110697858A (en) * | 2019-10-24 | 2020-01-17 | 徐州工业职业技术学院 | Purifying agent for treating domestic sewage and preparation method thereof |
| CN113087028A (en) * | 2021-02-25 | 2021-07-09 | 苏州威德姆生态科技有限公司 | Endogenous phosphorus passivation material and method for repairing eutrophic water body by using same |
| CN113754191A (en) * | 2021-09-14 | 2021-12-07 | 叶婷婷 | Method and device for treating high-salinity organic wastewater in chemical production |
| CN113754192A (en) * | 2021-09-14 | 2021-12-07 | 叶婷婷 | High-salinity wastewater refining process and equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020056674A1 (en) * | 2000-11-01 | 2002-05-16 | Masahiro Iseki | Waste water treatment device |
| CN1418825A (en) * | 2002-12-12 | 2003-05-21 | 中国科学院生态环境研究中心 | High efficiency algae flooculation agent, method for treating red tide and plakton bloom using same |
| CN102887581A (en) * | 2012-10-19 | 2013-01-23 | 江苏商达水务有限公司 | Flocculating agent for treating sewage in Chinese patent medicine production enterprises and preparation method thereof |
| CN103482773A (en) * | 2013-10-15 | 2014-01-01 | 江苏商达水务有限公司 | Dephosphorization reagent for rural domestic sewage and application thereof |
-
2014
- 2014-09-05 CN CN201410454136.XA patent/CN104176796B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020056674A1 (en) * | 2000-11-01 | 2002-05-16 | Masahiro Iseki | Waste water treatment device |
| CN1418825A (en) * | 2002-12-12 | 2003-05-21 | 中国科学院生态环境研究中心 | High efficiency algae flooculation agent, method for treating red tide and plakton bloom using same |
| CN102887581A (en) * | 2012-10-19 | 2013-01-23 | 江苏商达水务有限公司 | Flocculating agent for treating sewage in Chinese patent medicine production enterprises and preparation method thereof |
| CN103482773A (en) * | 2013-10-15 | 2014-01-01 | 江苏商达水务有限公司 | Dephosphorization reagent for rural domestic sewage and application thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417651A (en) * | 2016-01-07 | 2016-03-23 | 苏州法斯特信息科技有限公司 | Tea tree leaf extractive water purification agent and preparation method thereof |
| CN105417651B (en) * | 2016-01-07 | 2018-10-26 | 陈伟民 | A kind of tea tree leaf extract water purification agent |
| CN106630060A (en) * | 2016-12-14 | 2017-05-10 | 吴银娣 | Sewage treatment flocculant |
| CN107963689A (en) * | 2017-11-22 | 2018-04-27 | 宿州市逢源生物科技有限公司 | A kind of eutrophic water body cleanser and preparation method thereof |
| CN109809545A (en) * | 2019-03-27 | 2019-05-28 | 北京尚水清源水处理技术有限公司 | A kind of preparation method of efficient dephosphorization coagulant |
| CN110697858A (en) * | 2019-10-24 | 2020-01-17 | 徐州工业职业技术学院 | Purifying agent for treating domestic sewage and preparation method thereof |
| CN113087028A (en) * | 2021-02-25 | 2021-07-09 | 苏州威德姆生态科技有限公司 | Endogenous phosphorus passivation material and method for repairing eutrophic water body by using same |
| CN113754191A (en) * | 2021-09-14 | 2021-12-07 | 叶婷婷 | Method and device for treating high-salinity organic wastewater in chemical production |
| CN113754192A (en) * | 2021-09-14 | 2021-12-07 | 叶婷婷 | High-salinity wastewater refining process and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104176796B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104176796B (en) | A kind of dephosphorization flocculating purifying agent and preparation and application thereof | |
| CN105126742B (en) | A kind of method using modified kaolin sorbent treatment fluoride waste | |
| CN109095751B (en) | Method for treating activated sludge through lower-temperature thermokalite decomposition | |
| Bai et al. | Fe (II)-activated peroxymonosulfate coupled with nanofiltration removes natural organic matter and sulfamethoxazole in natural surface water: Performance and mechanisms | |
| CN102757119A (en) | Preparation method of composite type inorganic polymeric flocculating agent and application thereof | |
| CN105540724B (en) | A kind of NEW TYPE OF COMPOSITE decolorising agent and its waste water decoloring processing method using NEW TYPE OF COMPOSITE decolorising agent | |
| CN110078186A (en) | A kind of dual-functional nanometer removes the preparation method and application of algae material | |
| CN104176802B (en) | Flocculating purifying agent of a kind of pre-treatment rural area eutrophy waste water and preparation method thereof | |
| CN104150653B (en) | A kind of VB 12the deep treatment method of wastewater biochemical process water outlet | |
| CN103922453B (en) | A kind of coking chemical waste water flocculation agent and preparation method thereof and application | |
| CN107128999A (en) | It is a kind of for medicament of municipal sewage treatment and preparation method thereof | |
| CN102229443A (en) | Method for preparing polyaluminium chloride ferric flocculant by using municipal sewage sludge | |
| Li et al. | A collaborative coagulation strategy for algae-laden and dye-containing water treatment | |
| CN102671630B (en) | Method for preparing printing dye adsorbent by taking eggshells as matrix and treatment method | |
| CN101723501A (en) | Coagulation method for processing water body containing plant polyphenol tannate | |
| CN106622162A (en) | Preparation method and application of modified chitosan/zeolite/nano-zirconium adsorbent | |
| CN101125699A (en) | Method for preparing ecological safety type composite flocculant | |
| CN104261541A (en) | Straw/polyferric sulfate composite water treatment material and preparation method thereof | |
| CN106006890A (en) | Preparation method of chitosan coagulant | |
| CN106882860A (en) | A kind of preparation method of magnesia-starch Complex Flocculant | |
| Li et al. | Efficient, quick, and low-carbon removal mechanism of microplastics based on integrated gel coagulation-spontaneous flotation process | |
| CN102730805A (en) | Composite phosphate removing decolorant and method thereof for removing phosphor and decolouring | |
| CN102515323A (en) | Method for preparing high efficiency nontoxic purifying agent by industrial waste | |
| CN101974866B (en) | Method for preparing flocculant for treating papermaking black liquor by using waste collagen | |
| CN104692504A (en) | Method for pretreatment of natural rubber wastewater and recycling of crude proteins |
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 | ||
| CP03 | Change of name, title or address |
Address after: 214000 Jiangsu city of Wuxi province Xishan economic and Technological Development Zone No. 2 Feng Wei Lu savera No. 1 107&108 Patentee after: Jiangsu Eic water Co., Ltd. Address before: 214000 Xishan Economic Development Zone, Wuxi, Furong Road No. 99, No., No. three Patentee before: Jiangsu Shangda Water Affair Co., Ltd. |
|
| CP03 | Change of name, title or address |