CN101172692A - Method for processing red tide with sulphuric acid free radical - Google Patents
Method for processing red tide with sulphuric acid free radical Download PDFInfo
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- CN101172692A CN101172692A CNA2007101573068A CN200710157306A CN101172692A CN 101172692 A CN101172692 A CN 101172692A CN A2007101573068 A CNA2007101573068 A CN A2007101573068A CN 200710157306 A CN200710157306 A CN 200710157306A CN 101172692 A CN101172692 A CN 101172692A
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- water
- free radical
- sulphuric acid
- acid free
- alga
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Abstract
The invention belongs to the high-level oxidation technique and water environment protecting field, and relates to a method of vitriol free radical treating red tide. The method aims to produce vitriol free radical through adding persulfate or single peroxide hydrosulfate into the water rich in nutrition, then through pyrogenation, ultraviolet light photolysis, Gama radial eradiation decomposition or metal ion catalyze manner, having high oxidation active vitriol free radical that can react with the living creatures such as alga in the water to destroy the cell membrane fat layer, the protein, the carbohydrate and the DNA of the living creatures so as to kill the living creatures such as alga, degradate the anatoxins excreted by the alga in the water, and purify the water quality. The invention has the advantages that the method has small medicament use volume, low fathering cost and simple operation; adding reagent with friendly environment does not produce secondary pollution; the method has high treating efficiency and rapid reaction speed so as to be suitable for the water area with big area; the method not only can kill the harmful alga in the water, but also can degradate the anatoxins excreted by the alga.
Description
Technical field
The invention belongs to high-level oxidation technology and water environment protection field; the method that relates to processing red tide with sulphuric acid free radical specifically is meant the method that the high-level oxidation technology of use generation sulphuric acid free radical is applied to administer red tide of sea and fresh water bloom, and it is prevention and the improvement that is adapted to all kinds of eutrophication water red tides and wawter bloom.
Background technology
Because the development of human economy has caused many interference to the Nature, the most importantly increase of N, P nutritive ingredient causes the eutrophication of fresh water, seawater, for the burst growth of algae in the water provides very advantageous conditions.Therefore the frequency that red tide and wawter bloom take place in worldwide continues to increase.Disappear the phase at red tide, red tide plankton mass mortality and decomposition have exhausted the dissolved oxygen in the water, and resolvent produces a large amount of obnoxious flavoures, serious threat sea farming industry and Tourism development.Similarly, after the eutrophication, wawter bloom frequently occurs in the fresh water, and area spreads year by year, and the time length prolongs year by year.The wawter bloom phenomenon has all appearred in a lot of rivers of China and lake, as Taihu Lake, Dian Chi, Chaohu, Hongchehu Lake, Han River.The maximum harm that wawter bloom causes in the fresh water is that the drinking water source is on the hazard, and the algae toxin influences human beings'health by food chain, and the secondary metabolite of blue-green alga bloom can damage liver, has short cancer effect, directly threatens human beings'health and existence.So need carry out certain prevention and improvement to red tide and wawter bloom, safeguard ecological safety and protection human beings'health.
The method of prevention at present and improvement red tide and wawter bloom has a lot, mainly comprises physics method, chemical method and biological process.Physical method comprises the method for using clay and modified clay flocculation, and clay makes it to be deposited to the bottom by the physical adsorption algae, but exists the clay usage quantity big, operational difficulty, cost problem of higher.The dirt substance treating method is that the biology of introducing some external sources suppresses algae grows, reaches the purpose that suppresses its growth.This method is introduced the external source biology, so there is certain problems of ecological security.Chemical process comprises uses weedicide and copper sulfate method, kills algae by chemical process.These chemical reagent usually bring the secondary pollution problem to environment.
Summary of the invention
The purpose of this invention is to provide the method that a kind of high-level oxidation technology that produces sulphuric acid free radical is applied to administer red tide of sea and fresh water bloom, utilize this method not only to administer red tide of sea and fresh water bloom, algae toxin in all right degradation water reaches the purpose that purifies water.
Know-why of the present invention: the production method of sulphuric acid free radical mainly contains persulphate (S
2O
8 2-) and single peroxosulphuric hydrogen salt (HSO
5 -) pyrolysis (70 ~ 100 ℃), UV-light decompose (200-365nm), gamma-rays radiolysis and metal ions M
N+(Co
2+, Cu
2+, Fe
2+, Ag
+) catalysis etc., concrete reaction formula is shown in 1 ~ 6:
S
2O
8 2-+e
-→SO
4 ·-+SO
4 2- (3)
M
n++S
2O
8 2-→M
(n+1)++SO
4 ·-+SO
4 2- (5)
M
n++HSO
5 -→M
(n+1)++SO
4 ·-+OH
- (6)
The sulphuric acid free radical that is produced by above-mentioned reaction has very high oxidation activity, can oxidizing water in algae, destroy the materials such as cell membrane lipid layer, protein, carbohydrate and DNA of algae, thereby kill algae.Sulphuric acid free radical can also participate in the algae toxin of degrading simultaneously.
Technical scheme of the present invention is: the method for processing red tide with sulphuric acid free radical, this method is to add persulphate or single peroxosulphuric hydrogen salt in eutrophic water, through pyrolysis, UV-light is decomposed, gamma-rays radiolysis or metal ion catalysis mode produce sulphuric acid free radical, sulphuric acid free radical with high oxidation activity can react with the biologies such as algae in the water, thereby kill algae bio, the concrete steps that produce sulphuric acid free radical are: the method by heating makes water temperature reach 70-100 ℃, pyrolysis temperature is 70 ℃ and is first-selection, perhaps use the ultra violet lamp water body that can produce the 200-365nm wavelength, perhaps use cobalt 60 radioactive sources to produce gamma-rays radiation water body, perhaps in water, add metal ion Co
2+, Cu
2+, Fe
2+Or Ag
+Catalytic way produces sulphuric acid free radical, and the concentration of persulphate or single peroxosulphuric hydrogen salt is less than 0.01mol/L.Implementation result can be used Instrument measurings such as biomicroscope, ultraviolet-visible pectrophotometer, liquid chromatography.
The invention has the beneficial effects as follows: (1) medicament usage quantity is little, and treatment cost is low, and is simple to operate; (2) add eco-friendly reagent, can the secondary pollution environment; (3) processing efficiency height, speed of response is fast, is fit to handle water field of big area; (4) can not only kill in the water harmful algae algae excretory algae toxin of can also degrading simultaneously.
Description of drawings
Fig. 1 is red tide of the present invention or wawter bloom processing technological flow figure.
Embodiment
Embodiment 1
Algae concentration 1.2 * 10 in the water body
5/ mL adds single peroxosulphuric hydrogen sodium (NaHSO in water
5) and cobalt chloride (CoCl
2), add 10 kilograms NaHSO according to per 1000 tons of water ballasts
5CoCl with 100 grams
2, Co
2+Catalysis HSO
5 -Produce sulphuric acid free radical, through after 5 fens clock times, detect algae, the result shows that algae is all dead.General effect is that kill ratio reaches 100%.
Embodiment 2
The content concn 2.5 μ g/L of Microcystin add Potassium Persulphate (K in the water body in tap water
2S
2O
8), add 37g K according to every 1000L tap water
2S
2O
8, through the low pressure mercury lamp irradiation of 254nm, the Microcystin after 5 minutes in the water does not detect, degraded fully.
Claims (2)
1. the method for processing red tide with sulphuric acid free radical, it is characterized in that, this method is to add persulphate or single peroxosulphuric hydrogen salt in eutrophic water, through pyrolysis, UV-light is decomposed, gamma-rays radiolysis or metal ion catalysis mode produce sulphuric acid free radical, sulphuric acid free radical with high oxidation activity can react with the biologies such as algae in the water, thereby kill algae bio, the concrete steps that produce sulphuric acid free radical are: the method by heating makes water temperature reach 70-100 ℃, perhaps use the ultra violet lamp water body that can produce the 200-365nm wavelength, perhaps use cobalt 60 radioactive sources to produce gamma-rays radiation water body, perhaps in water, add metal ion Co
2+, Cu
2+, Fe
2+Or Ag
+Catalytic way produces sulphuric acid free radical, and the concentration of persulphate or single peroxosulphuric hydrogen salt is less than 0.01mol/L.
2. according to the method for the described processing red tide with sulphuric acid free radical of claim 1, it is characterized in that described pyrolysis temperature is 70 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101573068A CN100519438C (en) | 2007-09-28 | 2007-09-28 | Method for processing red tide with sulphuric acid free radical |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101573068A CN100519438C (en) | 2007-09-28 | 2007-09-28 | Method for processing red tide with sulphuric acid free radical |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101172692A true CN101172692A (en) | 2008-05-07 |
| CN100519438C CN100519438C (en) | 2009-07-29 |
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ID=39421482
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|---|---|---|---|
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973622A (en) * | 2010-10-19 | 2011-02-16 | 哈尔滨工业大学 | Method for accelerating monopersulfate and persulfate to produce free sulfate radicals |
| CN102020350A (en) * | 2011-01-04 | 2011-04-20 | 华中师范大学 | Processing method of heterocatalysis persulfate Fenton oxidation water |
| CN105036291A (en) * | 2015-08-05 | 2015-11-11 | 同济大学 | Method for degrading smelly substance in water through oxidizing agent activated by ultraviolet light |
| CN105036290A (en) * | 2015-08-05 | 2015-11-11 | 同济大学 | Method for degrading smelly substance in water through oxidizing agent activated by ferrous iron |
| CN105060392A (en) * | 2015-08-05 | 2015-11-18 | 同济大学 | Method for removing alga in water by ultraviolet light activated oxidizing agent |
| CN105084510A (en) * | 2015-08-05 | 2015-11-25 | 同济大学 | Method for removing algae in water on basis of thermally-activated oxidizing agent |
| CN105152300A (en) * | 2015-08-05 | 2015-12-16 | 同济大学 | Method for degrading taste and odor compound in water based on thermally-activated oxidant |
| CN108751379A (en) * | 2018-06-07 | 2018-11-06 | 南京农业大学 | A kind of water body microcapsule algae toxin treatment agent and application method |
| CN109292923A (en) * | 2018-09-28 | 2019-02-01 | 中国科学院宁波城市环境观测研究站 | A method of microorganism in water body is reduced using ferrous ion activation sodium peroxydisulfate |
| CN111362449A (en) * | 2020-02-19 | 2020-07-03 | 大连理工大学 | Method for removing antibiotic resistance genes by activating persulfate through silver ammonia solution |
| CN113287633A (en) * | 2021-06-02 | 2021-08-24 | 天津大学 | Red tide algae algaecide based on ferroferric oxide activated persulfate and application thereof |
| CN113287632A (en) * | 2021-06-02 | 2021-08-24 | 天津大学 | Red tide algae removal agent based on tannin coupled ferrous activated persulfate and application thereof |
-
2007
- 2007-09-28 CN CNB2007101573068A patent/CN100519438C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973622A (en) * | 2010-10-19 | 2011-02-16 | 哈尔滨工业大学 | Method for accelerating monopersulfate and persulfate to produce free sulfate radicals |
| CN101973622B (en) * | 2010-10-19 | 2012-12-12 | 哈尔滨工业大学 | Method for accelerating monopersulfate and persulfate to produce free sulfate radicals |
| CN102020350A (en) * | 2011-01-04 | 2011-04-20 | 华中师范大学 | Processing method of heterocatalysis persulfate Fenton oxidation water |
| CN105084510A (en) * | 2015-08-05 | 2015-11-25 | 同济大学 | Method for removing algae in water on basis of thermally-activated oxidizing agent |
| CN105036290A (en) * | 2015-08-05 | 2015-11-11 | 同济大学 | Method for degrading smelly substance in water through oxidizing agent activated by ferrous iron |
| CN105060392A (en) * | 2015-08-05 | 2015-11-18 | 同济大学 | Method for removing alga in water by ultraviolet light activated oxidizing agent |
| CN105036291A (en) * | 2015-08-05 | 2015-11-11 | 同济大学 | Method for degrading smelly substance in water through oxidizing agent activated by ultraviolet light |
| CN105152300A (en) * | 2015-08-05 | 2015-12-16 | 同济大学 | Method for degrading taste and odor compound in water based on thermally-activated oxidant |
| CN108751379A (en) * | 2018-06-07 | 2018-11-06 | 南京农业大学 | A kind of water body microcapsule algae toxin treatment agent and application method |
| CN109292923A (en) * | 2018-09-28 | 2019-02-01 | 中国科学院宁波城市环境观测研究站 | A method of microorganism in water body is reduced using ferrous ion activation sodium peroxydisulfate |
| CN111362449A (en) * | 2020-02-19 | 2020-07-03 | 大连理工大学 | Method for removing antibiotic resistance genes by activating persulfate through silver ammonia solution |
| CN113287633A (en) * | 2021-06-02 | 2021-08-24 | 天津大学 | Red tide algae algaecide based on ferroferric oxide activated persulfate and application thereof |
| CN113287632A (en) * | 2021-06-02 | 2021-08-24 | 天津大学 | Red tide algae removal agent based on tannin coupled ferrous activated persulfate and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100519438C (en) | 2009-07-29 |
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