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Method for eliminating poison from microcapsule algal in water body

A technology of microcystin and water body, which is applied in chemical instruments and methods, test water, biological water/sewage treatment, etc., can solve the problems such as no method for eliminating microcystin, and achieve reliable and efficient toxin detection method Good water quality and high efficiency

Active Publication Date: 2006-01-04
INST OF AQUATIC LIFE ACAD SINICA
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Problems solved by technology

No method for eliminating microcystins in water body has been reported and used after retrieval

Method used

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Embodiment Construction

[0016] The method for eliminating microcystins in water bodies, the specific steps are as follows:

[0017] 1. Filter and clarify the algae in the water body with sand and gravel: pump water from the water intake point polluted by the reproduction of cyanobacteria, and pass it into one or two filters filled with sand and gravel devices for filtration. Pay attention to controlling the flow rate to minimize the suspended matter and Microcystis cell number in the water.

[0018] 2. Plant absorption treatment: The water filtered at the above place passes through a sandy soil filter pond cultivated with hygrophytes such as reeds, wild rice stems, cattails, and rushes. The water depth is 10-40 cm, and it is left to stand for 1-5 days. Regularly (30-150 days) harvest and replace the plants in the filter tank to maintain its ability to adsorb harmful substances such as microcystins and other algal odorous substances in the water.

[0019] 3. Activated carbon adsorption device: the wa...

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Abstract

The method includes following steps: to filter and clear alge in water by sand to reduce quantity of suspended substances and microcap frustule in water; next is plant absorbing process, a section of organic substances and microcystim are absorbed and decomposed by sandy soil plate which hygrophytes are planted on; the third is to further get rid of suspended substances and microcap frustule in water by active carbon adsorbing installation; the fourth is ozone process by blowing in high-density ozone containing air; the fifth is to detect content of microcystim in drinking water processed by method of high-effective liquid phase chromtograph detection.

Description

technical field [0001] The invention relates to drinking water treatment technology, more specifically to a method for eliminating microcystic cyanotoxins in water bodies, especially suitable for drinking water with water sources polluted by cyanobacteria breeding as water intake points. Background technique [0002] In recent years, with the intensification of surface water pollution and eutrophication of water bodies, many lakes and reservoirs in my country, such as Dianchi Lake, Taihu Lake, Chaohu Lake, Dianshan Lake, etc., have been forced to suffer from water quality stench due to the bloom of blue-green algae, usually Microcystis. Stop the water supply. The pollution of algae bloom has been a common problem. This type of algae can produce Microcystins (Microcystins), the most common manifestation of the toxic effect of Microcystins is to cause acute liver poisoning, it has been determined that Microcystins can irreversibly inhibit protein phos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F9/02C02F3/32C02F1/28C02F1/78G01N33/18
CPCY02W10/10
Inventor 刘永定沈强沈银武李敦海
Owner INST OF AQUATIC LIFE ACAD SINICA
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