CN102807275B - Modified cellulose wastewater treatment flocculating agent and preparation method thereof - Google Patents
Modified cellulose wastewater treatment flocculating agent and preparation method thereof Download PDFInfo
- Publication number
- CN102807275B CN102807275B CN2012102437343A CN201210243734A CN102807275B CN 102807275 B CN102807275 B CN 102807275B CN 2012102437343 A CN2012102437343 A CN 2012102437343A CN 201210243734 A CN201210243734 A CN 201210243734A CN 102807275 B CN102807275 B CN 102807275B
- Authority
- CN
- China
- Prior art keywords
- preparation
- add
- parts
- flocculating agent
- wastewater treatment
- 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.)
- Active
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a modified cellulose wastewater treatment flocculating agent and a preparation method thereof. The modified cellulose wastewater treatment flocculating agent is prepared by using the following raw materials in parts by weight: 6-12 parts of epoxy chloropropane, 2-4 parts of ethane diamine, 75-90 parts of sawdust cellulose and 2-5 parts of sodium hydroxide. The epoxy chloropropane and the ethane diamine are used for preparing an etherifying agent. During the preparation of the etherifying agent and the synthesis of the flocculating agent, an advanced microwave technique is adopted. Since sawdust is used as raw materials and the high-efficiency wastewater treatment flocculating agent is synthesized through chemical modification, the modified cellulose wastewater treatment flocculating agent and the preparation method thereof have the advantages that all raw materials are low in cost and easy to obtain and are nontoxic, the production line is simple, t environmental pollution is not caused, industrial conversion can be realized, and the economic and social benefits are remarkable.
Description
Technical field
The invention belongs to environmental protection technical field, be specifically related to a kind of modified-cellulose flocculant for treating waste water and preparation method thereof.
Background technology
Along with industrialized development, the mankind are also deepening gradually to environment damage, and China also is one of shortage of water resources and with serious pollution country.Along with the rise of environment protection campaign in the whole world, the research of water conditioner and production become and become more and more important.Exploitation has world-class water conditioner has become the task of top priority.Therefore, flocculation agent is more and more paid attention in the solid-liquid separation of wastewater treatment process.
In water treatment, flocculation technique be a less investment, simple to operate, can control and reduce contaminated wastewater preferably, the protection environment effective means.Along with improving constantly of environmental protection requirement, the kind of flocculation agent is also in continuous increase.Wherein it should be noted that organic polymer coargulator broadened application field progressively.Organic polymer coargulator is compared with inorganic flocculating agent, and it has, and consumption is little, throwing out is fast, to characteristics such as environmental influence are little, and the synthetic organic polymer flocculation agent occupies bigger advantage especially because its molecular weight is big, molecular chain functional group is many on market.
Summary of the invention
The object of the present invention is to provide a kind of modified-cellulose flocculant for treating waste water and preparation method thereof, the present invention is raw material with the wood chip, waste water flocculant by the chemical modification synthesizing efficient, all raw material is cheap and easy to get, nontoxicity, simple, the non-environmental-pollution of operational path, can realize that industry transforms, and possesses remarkable economical and social benefit.
For achieving the above object, the present invention adopts following technical scheme:
A kind of feed composition of modified-cellulose flocculant for treating waste water and the mass fraction of each component are: epoxy chloropropane 6-12 part, quadrol 2-4 part, the plain 75-90 part of wood fiber, sodium hydroxide 2-5 part.
A kind of method for preparing aforesaid modified-cellulose flocculant for treating waste water may further comprise the steps:
(1) preparation etherifying agent: in reaction flask, add epoxy chloropropane, be cooled to 0 ℃ with the frozen water salt bath, stir 1.5h, in 3h, divide three times and add quadrol, continue to stir 0.5h, microwave heating to 60 ℃, stirring 3h; Product after filtration, washing with acetone, 60 ℃ of dryings, make etherifying agent;
(2) synthetic flocculant: the wood fiber element of adding expansion process in beaker, add the NaOH that grinds to form the end through mortar again, add etherifying agent and powerful fully stirring then, microwave heating (75 ℃, 9 minutes); Be 80% alcohol solution dipping with containing massfraction, filter, wash back, dry then 2-3 time, make white powder modified-cellulose flocculant for treating waste water.
Beneficial effect of the present invention: the modified-cellulose flocculant for treating waste water selective big, nontoxic, can be fully form distinguishing feature such as benign cycle by biological decomposition, at nature.Since Mierocrystalline cellulose have the source wide, cheap, nontoxic, be easy to characteristics such as biological degradation, therefore shown good prospects for application.Yet the flocculating effect of itself has limitation, in order to improve its throwing out, need be to its modification, i.e. and chemical modifications such as the esterification by hydroxyl, etherificate, oxidation, crosslinked, graft copolymerization increase its active group, improve flocculating effect.The present invention is raw material with the wood chip, and by the waste water flocculant of chemical modification synthesizing efficient, all raw material is cheap and easy to get, nontoxicity, fairly simple, the non-environmental-pollution of operational path, and simplified technology, can realize that industry transforms.
Embodiment
Embodiment 1
A kind of modified-cellulose flocculant for treating waste water and preparation method thereof, the mass fraction of feed composition and each component are 10 parts of epoxy chloropropane, 4 parts of quadrols, plain 83 parts of wood fiber, 3 parts in sodium hydroxide.
Etherifying agent is the product of epoxy chloropropane and quadrol; Solvent is ethanol; Alkaline catalysts is sodium hydroxide.
(1) add epoxy chloropropane according to above-mentioned formula rate in reaction flask, be cooled to 0 ℃ with the frozen water salt bath, stir 1.5h, divide three times in 3h and add quadrol, continue to stir 0.5h, 3h is stirred in microwave heating to 60 ℃; Product after filtration, washing with acetone, 60 ℃ of dryings, make etherifying agent;
(2) the wood fiber element of adding expansion process in beaker adds the NaOH that grinds to form the end through mortar again, adds etherifying agent and powerful fully stirring then, microwave heating (75 ℃, 9 minutes); Be 80% alcohol solution dipping with containing massfraction, filter, wash back, dry then 2-3 time, make white powder modified-cellulose flocculant for treating waste water.
Embodiment 2
A kind of modified-cellulose flocculant for treating waste water and preparation method thereof, the mass fraction of feed composition and each component are 6 parts of epoxy chloropropane, 2 parts of quadrols, plain 88 parts of wood fiber, 4 parts in sodium hydroxide.
Etherifying agent is the product of epoxy chloropropane and quadrol; Solvent is ethanol; Alkaline catalysts is sodium hydroxide.
(1) add epoxy chloropropane according to above-mentioned formula rate in reaction flask, be cooled to 0 ℃ with the frozen water salt bath, stir 1.5h, divide three times in 3h and add quadrol, continue to stir 0.5h, 3h is stirred in microwave heating to 60 ℃; Product after filtration, washing with acetone, 60 ℃ of dryings, make etherifying agent;
(2) the wood fiber element of adding expansion process in beaker adds the NaOH that grinds to form the end through mortar again, adds etherifying agent and powerful fully stirring then, microwave heating (75 ℃, 9 minutes); Be 80% alcohol solution dipping with containing massfraction, filter, wash back, dry then 2-3 time, make white powder modified-cellulose flocculant for treating waste water.
Embodiment 3
A kind of modified-cellulose flocculant for treating waste water and preparation method thereof, the mass fraction of feed composition and each component are 12 parts of epoxy chloropropane, 4 parts of quadrols, plain 79 parts of wood fiber, 5 parts in sodium hydroxide.
Etherifying agent is the product of epoxy chloropropane and quadrol; Solvent is ethanol; Alkaline catalysts is sodium hydroxide.
(1) add epoxy chloropropane according to above-mentioned formula rate in reaction flask, be cooled to 0 ℃ with the frozen water salt bath, stir 1.5h, divide three times in 3h and add quadrol, continue to stir 0.5h, 3h is stirred in microwave heating to 60 ℃; Product after filtration, washing with acetone, 60 ℃ of dryings, make etherifying agent;
(2) the wood fiber element of adding expansion process in beaker adds the NaOH that grinds to form the end through mortar again, adds etherifying agent and powerful fully stirring then, microwave heating (75 ℃, 9 minutes); Be 80% alcohol solution dipping with containing massfraction, filter, wash back, dry then 2-3 time, make white powder modified-cellulose flocculant for treating waste water.
The modified-cellulose flocculant for treating waste water prepares effect
(1) under these conditions, use this prepared modified-cellulose, have simple to operate, be easy to control, cost is low, pollute characteristics such as little, realized the treatment of wastes with processes of wastes against one another, has wide application future aspect wastewater treatment.
(2) the best transmittance of the waste water after the modified-cellulose flocculant for treating waste water is handled can reach 70% under optimum preparating condition.
When (3) handling waste water with the modified-cellulose flocculant for treating waste water, the pH value of flocculation agent consumption, joining day, waste water etc. all can influence flocculating effect.Optimum flocculating condition is: under the neutrallty condition, the flocculation agent consumption is that 3g/L, flocculation time are 40min.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (1)
1. the preparation method of a modified-cellulose flocculant for treating waste water, it is characterized in that: the feed composition of described flocculation agent and the mass fraction of each component are: epoxy chloropropane 6-12 part, quadrol 2-4 part, the plain 75-90 part of wood fiber, sodium hydroxide 2-5 part; The preparation method may further comprise the steps:
(1) preparation etherifying agent: in reaction flask, add epoxy chloropropane, be cooled to 0 ℃ with the frozen water salt bath, stir 1.5h, in 3h, divide three times and add quadrol, continue to stir 0.5h, microwave heating to 60 ℃, stirring 3h; Product after filtration, washing with acetone, 60 ℃ of dryings, make etherifying agent;
(2) synthetic flocculant: in beaker, add the wood fiber element of expansion process, add the NaOH that grinds to form the end through mortar again, add etherifying agent then and powerfully fully stir, 75 ℃ of microwave heating 9 minutes; Be 80% alcohol solution dipping with containing massfraction, filter, wash back, dry then 2-3 time, make white powder modified-cellulose flocculant for treating waste water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102437343A CN102807275B (en) | 2012-07-16 | 2012-07-16 | Modified cellulose wastewater treatment flocculating agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102437343A CN102807275B (en) | 2012-07-16 | 2012-07-16 | Modified cellulose wastewater treatment flocculating agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102807275A CN102807275A (en) | 2012-12-05 |
| CN102807275B true CN102807275B (en) | 2013-08-14 |
Family
ID=47231166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102437343A Active CN102807275B (en) | 2012-07-16 | 2012-07-16 | Modified cellulose wastewater treatment flocculating agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102807275B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159309B (en) * | 2013-04-15 | 2014-11-19 | 池州灵芝化建材料科技有限公司 | Preparation method of flocculating agent |
| CN103191684B (en) * | 2013-04-28 | 2015-02-04 | 湖南科技大学 | Preparation method and application of polymeric phosphato aluminum iron chloride coagulant |
| CN106479454B (en) * | 2016-08-30 | 2019-03-15 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of drilling fluid modified cellulose gel breaker and preparation method thereof |
| CN115627013A (en) * | 2022-09-08 | 2023-01-20 | 苏州博大永旺新材股份有限公司 | Rice hull powder biomass-based fully-degradable material and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235094B (en) * | 2008-02-29 | 2010-12-22 | 华中农业大学 | Method for producing flocculant, flocculant produced by the same method and application |
| CN101700922A (en) * | 2009-11-20 | 2010-05-05 | 大连理工大学 | cationic starch flocculant |
| CN102295337B (en) * | 2011-06-04 | 2013-06-26 | 江南大学 | Printing and dyeing wastewater processing technology by quaternary ammonium salt cationic flocculant prepared by the use of straws |
-
2012
- 2012-07-16 CN CN2012102437343A patent/CN102807275B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102807275A (en) | 2012-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102807275B (en) | Modified cellulose wastewater treatment flocculating agent and preparation method thereof | |
| CN100441693C (en) | Process for preparing chitin and chitosan | |
| CN103145919B (en) | Method for preparing cellulose cationic flocculant by modifying attapulgite | |
| CN102250293B (en) | Preparation method and application of acrylamide modified grafted corn cob | |
| CN108993410B (en) | Preparation method of magnetic chitosan modified straw composite adsorbent, obtained product and application | |
| CN101250020A (en) | Preparation of special dehydrant for paper-making sludge and use thereof | |
| CN102702367B (en) | Method for preparing cationic cross-linked starch xanthate | |
| CN105366909A (en) | Sludge deep-dehydration technology | |
| CN102642905B (en) | Green modified starch multifunctional sewage treating agent and method for preparing same | |
| CN103738992A (en) | Preparation technology of efficient polymeric aluminum chloride for wastewater treatment | |
| CN103172761A (en) | Energy-saving and emission-reducing production method of high-quality sodium alginate | |
| CN102477135A (en) | Method for preparing sewage flocculating agent capable of adsorbing heavy metal ions | |
| CN100560607C (en) | A kind of preparation method of high deacetylized high molecular weight chitosan | |
| CN1884143B (en) | Process for treating industrial wastewater in production of canned mandarin orange | |
| CN104725644A (en) | Amphiprotic flocculant based on natural high polymers and preparation method thereof | |
| CN102229443A (en) | Method for preparing polyaluminium chloride ferric flocculant by using municipal sewage sludge | |
| CN104448338A (en) | Preparation method of lignin xanthate | |
| CN101698563B (en) | Sludge drying treatment method | |
| CN101161695B (en) | Method for preparing absorbent material by micro-wave radiation of potato fecula industry slag grafted polymeric acrylate | |
| CN115124210B (en) | Method for preparing high-carbon low-ash functional carbon material by catalyzing hydrothermal carbonization based on thermal alkaline hydrolysis and acid | |
| CN109603768B (en) | Preparation method of economic and reproducible biogas residue-based heavy metal adsorbent | |
| CN110156299A (en) | A kind of municipal sludge broken wall and brick-making method | |
| AU2021103365A4 (en) | Enhanced coagulation method for removing microplastics in water | |
| CN101781006A (en) | New method for improving flocculation treatment effect of high yield pulp waste liquid by using surplus sludge | |
| CN101974866A (en) | Method for preparing flocculant for treating papermaking black liquor by using waste collagen |
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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210416 Address after: Room 2436, 206 Fenghuang beiheng Road, Yongning Street, Zengcheng District, Guangzhou, Guangdong 510000 Patentee after: Guangzhou reed Environmental Protection Technology Co., Ltd Address before: 365004, No. 25 Jing Dong Road, three yuan, Fujian, Sanming City Patentee before: SANMING University |