CN1810672A - Modified white clay and its application in treating red tide and fresh water algalbloom - Google Patents
Modified white clay and its application in treating red tide and fresh water algalbloom Download PDFInfo
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- CN1810672A CN1810672A CN 200510045789 CN200510045789A CN1810672A CN 1810672 A CN1810672 A CN 1810672A CN 200510045789 CN200510045789 CN 200510045789 CN 200510045789 A CN200510045789 A CN 200510045789A CN 1810672 A CN1810672 A CN 1810672A
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- white clay
- red tide
- fresh water
- modified white
- algalbloom
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Physical Water Treatments (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to technology of treating red tide and fresh water algalbloom with slag produced in ammonia-soda process, and is especially modified white clay and application in treating red tide and fresh water algalbloom. The modified white clay consists of white clay in 49-99 wt%, inorganic flocculant in 0.1-50 wt% and peroxide in 0.1-50 wt%. When used, the modified white clay is mixed with sea water or fresh water to form homogeneous suspension and the suspension is sprayed to the surface of red tide or fresh water algalbloom to eliminate the algae through natural deposition of certain time. The modified white clay has lowered pH value for direct use in natural water and obviously raised algae eliminating effect.
Description
Technical field
The present invention relates to a kind of controlling waste residue red tide that produces when fully utilizing ammonia alkali legal system alkali or the technology of fresh water water bloom, be specially a kind of modified white clay and the application in red tide and fresh water water bloom are administered thereof.
Background technology
Red tide is frequently to break out in offshore culture zone and river mouth in recent years, bring class Oceanic disasters of very big harm for marine fishery and ocean environment, it all is a kind of ecological unusual phenomenon that causes the water body variable color owing to a large amount of little algaes, protozoon and bacterium excessive multiplication or gathering in water body with the water bloom common in the lake, land.In order to reduce the harm of red tide and water bloom, the various countries scientist has proposed the different methods of preventing and treating.Wherein the method that is widely studied in the world at present is to utilize clay and modified product flocculation thereof to remove red tide plankton, this method is because aboundresources (the clay mineral reserves are big), the harmless or hypotoxicity to aquaculture organism and be subjected to the high praise of various countries red-tide control researcher and government.But also there is certain deficiency in this method, and the ability difference that for example different types of clay mineral is removed red tide plankton is bigger, and is also bigger even same class clay is removed the ability difference of red tide plankton of the same race not; Different in addition application modes is the ability of remarkably influenced clay removal red tide plankton also; The cost that broadcasts sowing clay in a large number is also higher.
White clay is to utilize solvay soda process to produce the waste of discharging in the soda ash process, claims alkaline residue again.Have a large amount of solid waste and produce when utilizing solvay soda process to produce soda ash, method commonly used both at home and abroad at present is to transport these trade wastes to the slag field to deposit; This often causes shared soil or marine site (river bank) to become " white sea ", cause marine site, river in various degree pollution and silt up, water industry is had a strong impact on.How to solve the waste residue problem of ammonia alkali legal system alkali, the comprehensive utilization that realizes waste is that one of key issue that solves is badly in need of in present ammonia alkali industry.
Summary of the invention
The purpose of this invention is to provide a kind of modified white clay and the application in red tide and the improvement of fresh water water bloom thereof, can effectively utilize discarded white clay to administer red tide and fresh water water bloom, its can realize the utilization again of industrial waste on the one hand, turns waste into wealth utilize resources synthetically; Can control the red tide disaster of day by day wreaking havoc effectively on the other hand.
Technical scheme of the present invention is:
A kind of modified white clay is made up of white clay, inorganic flocculating agent and superoxide, and wherein the mass percentage content of white clay is 49-99%, and the quality percentage composition of inorganic flocculating agent is 0.1-50%, and the mass percent concentration of superoxide is 0.1-50%.
Described inorganic flocculating agent comprises the inorganic polymer of various aluminium, the inorganic polymer of iron or the copolymerization mineral compound of iron and aluminium; Described superoxide mainly is some inorganic peroxides, as SPC-D, Sodium peroxoborate, clorox or hydrogen peroxide.
The application of described modified white clay in red tide and the improvement of fresh water water bloom, during use the white clay after the modification is become uniform suspension liquid with seawater or mixing of fresh water, by concentration range is that 0.001-1g/L is sprayed at the red tide water surface, through after 0.5-2.5 hour the natural subsidence, remove red tide and fresh water water bloom.
The invention has the advantages that the white clay that utilizes after inorganic flocculating agent and the peroxide modified, can effectively reduce the pH value of white clay on the one hand, can directly use in natural water; Can significantly improve the removal effect of white clay on the other hand, effectively control the red tide disaster the red tide algae.
Embodiment
Modified white clay of the present invention is made up of white clay, inorganic flocculating agent and superoxide.During to the white clay modification,, add superoxide during use at first with itself and a certain amount of inorganic flocculating agent uniform mixing.In the modified white clay, the consumption of inorganic flocculating agent and superoxide can be according to the feature of using water body, and as respective change such as salinity, biomasss, the quality percentage composition of common two class modified components is respectively good between 0.1-50%.During use white clay after the modification and seawater (or fresh water) are mixed into uniform suspension liquid, (concentration range 0.001-1g/L) is sprayed at the red tide water surface by finite concentration, can remove red tide plankton effectively through after the natural subsidence of certain hour.
The invention will be further described below by embodiment.
Embodiment 1
With white clay, polymerize aluminum chloride, SPC-D uniform mixing (three's weight ratio is about 10: 1: 1).Getting growth has the seawater of Heterosigma akashiwo one liter (red tide plankton density reaches 10
8Individual/liter), the white clay after it adds modification makes the concentration of modified white clay composition in the algae liquid reach 0.01g/L, shakes up, after static 2.5 hours, can kill the red tide algae more than 90%, removes the chlorophyll more than 70%.
Embodiment 2
With white clay, PAFS, clorox uniform mixing (three's weight ratio is about 20: 1: 1).Getting growth has the seawater of Prorocentrum donghaiense one liter (red tide plankton density reaches 10
7Individual/liter), the white clay after it adds modification makes the concentration of modified white clay composition in the algae liquid reach 0.01g/L, shakes up, after static 2 hours, can remove the red tide algae more than 90%.
Embodiment 3
With white clay, polymerize aluminum chloride, hydrogen peroxide uniform mixing (three's weight ratio is about 50: 1: 10).Getting growth has the seawater of Heterosigma akashiwo one liter (red tide plankton density reaches 10
8Individual/liter), the white clay after it adds modification makes the concentration of modified white clay composition in the algae liquid reach 1g/L, shakes up, after static 1 hour, can kill the red tide algae more than 90%, removes the chlorophyll more than 80%.
Embodiment 4
With white clay, PAFS, Sodium peroxoborate uniform mixing (three's weight ratio is about 30: 1: 3).Getting growth has the seawater of Prorocentrum donghaiense one liter (red tide plankton density reaches 10
7Individual/liter), the white clay after it adds modification makes the concentration of modified white clay composition in the algae liquid reach 0.1g/L, shakes up, after static 0.5 hour, can remove the red tide algae more than 90%.
Embodiment 5
With white clay, polymerize aluminum chloride, SPC-D uniform mixing (three's weight ratio is about 100: 1: 1).Getting growth has the seawater of Heterosigma akashiwo one liter (red tide plankton density reaches 10
8Individual/liter), the white clay after it adds modification makes the concentration of modified white clay composition in the algae liquid reach 1g/L, shakes up, after static 2.5 hours, can remove the red tide frustule more than 80%.
Claims (4)
1, a kind of modified white clay, it is characterized in that: form by white clay, inorganic flocculating agent and superoxide, wherein the mass percentage content of white clay is 49-99%, and the quality percentage composition of inorganic flocculating agent is 0.1-50%, and the mass percent concentration of superoxide is 0.1-50%.
2, according to the described modified white clay of claim 1, it is characterized in that: described inorganic flocculating agent comprises the inorganic polymer of various aluminium, the inorganic polymer of iron or the copolymerization mineral compound of iron and aluminium.
3, according to the described modified white clay of claim 1, it is characterized in that: described superoxide is SPC-D, Sodium peroxoborate, clorox or hydrogen peroxide.
4, according to the application of the described modified white clay of claim 1 in red tide and the improvement of fresh water water bloom, it is characterized in that: during use the white clay after the modification is become uniform suspension liquid with seawater or mixing of fresh water, by concentration range is that 0.001-1g/L is sprayed at the red tide water surface, through after 0.5-2.5 hour the natural subsidence, remove red tide and fresh water water bloom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100457893A CN1325390C (en) | 2005-01-28 | 2005-01-28 | Modified white clay and its application in treating red tide and fresh water algalbloom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100457893A CN1325390C (en) | 2005-01-28 | 2005-01-28 | Modified white clay and its application in treating red tide and fresh water algalbloom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1810672A true CN1810672A (en) | 2006-08-02 |
| CN1325390C CN1325390C (en) | 2007-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100457893A Expired - Fee Related CN1325390C (en) | 2005-01-28 | 2005-01-28 | Modified white clay and its application in treating red tide and fresh water algalbloom |
Country Status (1)
| Country | Link |
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| CN (1) | CN1325390C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219828B (en) * | 2008-01-24 | 2010-06-23 | 云南大学 | Blue algae water bloom bioflocculation agent and production |
| CN102424446A (en) * | 2011-10-18 | 2012-04-25 | 和濡水尚科技(北京)有限公司 | Method for treating black and stink river and lake water body in city |
| CN105236539A (en) * | 2015-10-28 | 2016-01-13 | 中国科学院海洋研究所 | Modified clay capable of eliminating red tide with high efficiency |
| CN107720914A (en) * | 2017-11-21 | 2018-02-23 | 山东建筑大学 | A kind of method using peroxycarbonate enhanced-coagulation |
| CN111204823A (en) * | 2020-01-10 | 2020-05-29 | 中国水产科学研究院黄海水产研究所 | Special water quality regulating agent for industrial aquaculture and production method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4017391A (en) * | 1973-11-26 | 1977-04-12 | Black Alvin P | Water treatment system |
| CN1121982C (en) * | 2000-11-17 | 2003-09-24 | 中国科学院海洋研究所 | Application of quaternaries compound for controlling seawater algae flower and fresh water algae flower |
| CN1191203C (en) * | 2002-12-12 | 2005-03-02 | 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 |
-
2005
- 2005-01-28 CN CNB2005100457893A patent/CN1325390C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219828B (en) * | 2008-01-24 | 2010-06-23 | 云南大学 | Blue algae water bloom bioflocculation agent and production |
| CN102424446A (en) * | 2011-10-18 | 2012-04-25 | 和濡水尚科技(北京)有限公司 | Method for treating black and stink river and lake water body in city |
| CN105236539A (en) * | 2015-10-28 | 2016-01-13 | 中国科学院海洋研究所 | Modified clay capable of eliminating red tide with high efficiency |
| CN107720914A (en) * | 2017-11-21 | 2018-02-23 | 山东建筑大学 | A kind of method using peroxycarbonate enhanced-coagulation |
| CN111204823A (en) * | 2020-01-10 | 2020-05-29 | 中国水产科学研究院黄海水产研究所 | Special water quality regulating agent for industrial aquaculture and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1325390C (en) | 2007-07-11 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070711 Termination date: 20110128 |