CN102276032A - Algaecide prepared by cetyl trimethyl ammonium bromide (CTAB) modified silt - Google Patents
Algaecide prepared by cetyl trimethyl ammonium bromide (CTAB) modified silt Download PDFInfo
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- CN102276032A CN102276032A CN201110143417XA CN201110143417A CN102276032A CN 102276032 A CN102276032 A CN 102276032A CN 201110143417X A CN201110143417X A CN 201110143417XA CN 201110143417 A CN201110143417 A CN 201110143417A CN 102276032 A CN102276032 A CN 102276032A
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- China
- Prior art keywords
- silt
- algae
- ctab
- trimethyl ammonium
- ammonium bromide
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a novel algaecide, and belongs to the algae removing technology. More specifically, natural silt is used as an algae removing carrier and a cationic surfactant cetyl trimethyl ammonium bromide (CTAB) is used as a modifier to clad and modify the natural silt; the charge which is carried by the surface of particles and can neutralize algae cells and the modified silt makes the algae cells easier to flocculate and aggregate; in addition, the modifier in the modified silt can form a net structure to further capture the algae cells, and the algae cells are finally settled and removed by flocs or floc aggregates formed by the silt particles, thus achieving the purpose of efficiently removing algae.
Description
Technical field
Present technique is a novel algae removal technology, specifically with natural silt as removing the algae carrier, with cats product cetyl trimethylammonium bromide (CTAB) is properties-correcting agent, natural silt carried out coating modification after, improved the ability that frustule is removed in the silt flocculation.
Background technology
At present, remove the method for algae both at home and abroad, can be divided into direct method and indirect method two big classes usually.Directly remove algae and can be divided into chemical process, physical method and biological method three major types again.Indirect method is meant that mainly the concentration by removing or reduction nutritive salt reaches the method for control algal grown.
(1) direct method:
1, physics method: machinery, clay remove algae, filtration, shading technology, ultrasonic wave, air floatation alga removing etc.;
2, chemical method: chlorine removes algae, ozone removes algae, potassium permanganate except that algae, dioxide peroxide remove algae, flocculation agent commonly used has Tai-Ace S 150, polyacrylamide, ferric sulfate, iron trichloride etc.;
3, biological process: remove algae, biological control reagent, higher plant restraint algae, fish control algae etc. with algae system algae, microbial flocculant.
In addition, foreign literature has been reported and has been used fine sand to come algae method in the filtered water as filtration medium, also had the slow husky algae that is used for removing pond sewage of filtering.
(2) indirect method
In the propulsive while of basin countermeasure, introduce (comprising in reservoir, the river) countermeasure in the lake.This countermeasure comprises two aspects, the one, desilting, the organic substance that is deposited in for a long time in Ha Noi or the lake is removed, remove the internal contamination source, after the basin countermeasure was implemented into to a certain degree, this measure was practical, but too early implemented, must bring alluvial again, efficient will reduce.Second is exactly by the nutritive salt in all means consume water, and the nutrient concentration in the lake water is reduced in a large number, with the breeding of control algae.This method comprises the balancing reservoir operation scheme, engineering measures such as diversion dilution, and aquatic plant purification, optimum algae reproduction or the like.On purpose allow a certain optimum algae or aquatic organism breed in a large number in a certain specific region, the means that are equipped with other are again eliminated the content of nutritive salt in the water system by the collection of algae in river, lake or waterplant.
This research is on the reference clay removes the basis of algae theory, has proposed with natural silt after the cats product coating modification, to have improved the ability of silt flocculation removal frustule as removing the algae carrier.This research is looked into newly through science and technology, and domestic and international pertinent literature according to the retrieval shows, does not also find to remove algae with the silt of surface modification as removing the algae carrier.
Summary of the invention
With the algicide that cetyl trimethylammonium bromide (CTAB) modification silt makes, be with natural silt as removing the algae carrier, be properties-correcting agent with cats product cetyl trimethylammonium bromide (CTAB), natural silt is carried out coating modification.
Embodiment:
The 1st step: the sample pretreatment before at first obtained natural silt being experimentized, purpose are the organic matters of removing in the silt.Adopt strong oxidizer hydrogen peroxide and deionized water that sample is repeatedly cleaned.The H of continuous adding 30% in the silt sample
2O
250 ℃ stirred in water bath, question response no longer includes fully that bubble is emerged and during heat release, stop to add H
2O
2, continue heating in water bath and clean repeatedly with deionized water after half an hour, outwell supernatant liquid and filter, in 60 ℃ of oven for drying, grinding, it is stand-by to cross 200 orders (74um) sample sieve screening back.
The 2nd step: at first be that natural silt is ground, activate mineral grain; Adopt the method for surface deposition that quaternary cationics is deposited to the sand grain surface then, utilize the coating of colloidal sol realization to sand grain, forming with particle surface does not have chemically combined heterogeneous coating layer.The preparation certain density cetyl trimethylammonium bromide of 100mL (CTAB) solution, the adding pretreated silt of 10g also mixes.Place constant temperature oscillator after vibration for some time silt-tensio-active agent mixing solutions, with the silt sample centrifugal removal supernatant liquor under 2000 * g condition after the vibration, remove the tensio-active agent of silt surface attachment with deionized water wash, then silt solution suction filtration is separated, products therefrom grinds behind 60 ℃ of vacuum-drying 24h, cross 200 mesh sieves, promptly get cetyl trimethylammonium bromide (CTAB) modification silt algicide.
Claims (1)
1. algicide that makes with cetyl trimethylammonium bromide (CTAB) modification silt, it is characterized in that being, with natural silt is to remove the algae carrier, with quaternary cationics (CTAB) is properties-correcting agent, natural silt is carried out surface coating modification, change the algicide of the surface properties of silt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110143417XA CN102276032A (en) | 2011-05-31 | 2011-05-31 | Algaecide prepared by cetyl trimethyl ammonium bromide (CTAB) modified silt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110143417XA CN102276032A (en) | 2011-05-31 | 2011-05-31 | Algaecide prepared by cetyl trimethyl ammonium bromide (CTAB) modified silt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102276032A true CN102276032A (en) | 2011-12-14 |
Family
ID=45101834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110143417XA Pending CN102276032A (en) | 2011-05-31 | 2011-05-31 | Algaecide prepared by cetyl trimethyl ammonium bromide (CTAB) modified silt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102276032A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104604936A (en) * | 2014-12-19 | 2015-05-13 | 角志海 | A novel water body algaecide and a preparing method thereof |
| CN110894099A (en) * | 2019-12-17 | 2020-03-20 | 海天水务集团股份公司 | Preparation method of ionic liquid modified sediment and rapid infiltration system thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1626448A (en) * | 2003-12-11 | 2005-06-15 | 李伟 | Wastewater treating compound |
| EP1652820A1 (en) * | 2004-10-05 | 2006-05-03 | Rheinkalk Akdolit GmbH & Co.KG | Filter material |
-
2011
- 2011-05-31 CN CN201110143417XA patent/CN102276032A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1626448A (en) * | 2003-12-11 | 2005-06-15 | 李伟 | Wastewater treating compound |
| EP1652820A1 (en) * | 2004-10-05 | 2006-05-03 | Rheinkalk Akdolit GmbH & Co.KG | Filter material |
Non-Patent Citations (1)
| Title |
|---|
| 曹西华 等: ""有机改性粘土去除有害赤潮藻的研究"", 《应用生态学报》, vol. 14, no. 7, 31 July 2003 (2003-07-31), pages 1169 - 1172 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104604936A (en) * | 2014-12-19 | 2015-05-13 | 角志海 | A novel water body algaecide and a preparing method thereof |
| CN110894099A (en) * | 2019-12-17 | 2020-03-20 | 海天水务集团股份公司 | Preparation method of ionic liquid modified sediment and rapid infiltration system thereof |
| CN110894099B (en) * | 2019-12-17 | 2022-07-19 | 海天水务集团股份公司 | Preparation method of ionic liquid modified sediment and rapid infiltration system thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111214 |