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Method for processing red tide with sulphuric acid free radical

A technology of free radicals and sulfuric acid, which is used in the treatment of seawater red tides and freshwater blooms, and sulfuric acid free radicals in the field of red tide treatment, can solve problems such as secondary pollution, and achieve the effects of small usage, fast reaction speed, and low cost of treatment.

Inactive Publication Date: 2008-05-07
DALIAN MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These chemical reagents often bring secondary pollution problems to the environment

Method used

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  • Method for processing red tide with sulphuric acid free radical
  • Method for processing red tide with sulphuric acid free radical
  • Method for processing red tide with sulphuric acid free radical

Examples

Experimental program
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Effect test

Embodiment 1

[0017] The concentration of algae in the water body is 1.2×10 5 / mL, add sodium monoperoxyhydrogensulfate (NaHSO 5 ) and cobalt chloride (CoCl 2 ), add 10 kg of NaHSO per 1000 tons of ballast water 5 and 100 g of CoCl 2 ,Co 2+ Catalytic HSO 5 - Sulfuric acid free radicals are produced, and after 5 minutes, the algae are detected, and the results show that all the algae are dead. The overall effect is a 100% kill rate.

Embodiment 2

[0019] The concentration of microcystin in the water body is 2.5 μg / L, and potassium persulfate (K 2 S 2 o 8 ), add 37g K per 1000L drinking water 2 S 2 o 8 After irradiating with a low-pressure mercury lamp at 254nm, the microcystins in the water were not detected after 5 minutes and had been completely degraded.

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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 [0001] The invention belongs to the field of advanced oxidation technology and water environment protection, and relates to a method for treating red tides with sulfuric acid free radicals, specifically referring to a method for using advanced oxidation technology that produces sulfuric acid free radicals to control seawater red tides and freshwater blooms. It is suitable for various Prevention and control of red tide and algal bloom in eutrophic water body. Background technique [0002] Due to the development of the human economy, it has caused many disturbances to nature, the most important being the increase of N and P nutrients, resulting in eutrophication of fresh water and sea water, which provides very favorable conditions for the explosive growth of algae in water. Therefore, the frequency of red tides and algae blooms is increasing all over the world. During the red tide disappearing period, a large number of red tide organisms die and decompose, ex...

Claims

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Application Information

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IPC IPC(8): C02F1/72
Inventor 刘瑀王德高李颖宋成文韩敏
Owner DALIAN MARITIME UNIVERSITY
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