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Composite bacteria-algae preparation method for purifying aquaculture waste water

A technology of compound bacteria and algae, aquaculture, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems that have not yet been seen, achieve fast response speed and less microbial loss , The effect of stable and reliable operation

Inactive Publication Date: 2012-01-25
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

It mainly focuses on the treatment of water quality by algae, bacteria and yeast in fungi, and uses the best immobilization method to immobilize a variety of bacteria and algae on a suitable carrier to treat aquaculture wastewater. reports not yet seen

Method used

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Effect test

Embodiment 1

[0013] 1) Determination of strains

[0014] (a) When the inoculum size is 8×10 6 When CFU / mL, the efficient degradation of organic matter is screened in yeast, nitrifying bacteria, Bacillus licheniformis, Bacillus subtilis, photosynthetic bacteria, Scenedesmus obliques, Chlorella pyrenoidosa, Crescent algae, and Anabaena spirulina, and can remove Bacteria and algae strains for nitrogen and phosphorus removal, and finally determined that the target microorganisms were nitrifying bacteria, Bacillus licheniformis, Scenedesmus obliquus and Crescent algae.

[0015] (b) When the inoculum size is 2×10 6 In terms of CFU / mL, the orthogonal test was used to determine the optimal ratio among nitrifying bacteria, Bacillus licheniformis, Scenedesmus obliquus and Crescent algae, so as to achieve better purification of aquaculture wastewater. When the volume ratio of Bacillus licheniformis: nitrifying bacteria: Crescent algae: Scenedesmus obliquus is 1:2:2:2, the wastewater treated with mi...

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Abstract

The invention discloses a composite bacteria-algae preparation, which consists of nitrifying bacteria, bacillus licheniformis, scenedesmus obliqnus and selenastrum capricornutum, wherein the volume ratio of the nitrifying bacteria to the bacillus licheniformis to the scenedesmus obliqnus to the selenastrum capricornutum is 1-2: 1-3:1-3:1-3, and the microbe inoculation amount per milliliter is 8*106CFU. The composite bacteria-algae preparation also can be prepared into a globular immobilized preparation by adopting a known embedding method, using the nitrifying bacteria, the bacillus licheniformis, the scenedesmus obliqnus and the selenastrum capricornutum as embedding bacteria and using polyvinyl alcohol, sodium alginate, active carbon, silicon dioxide and calcium carbonate as embedding agents. The bacteria, algae and immobilization materials used by the composite bacteria-algae preparation have no toxic or side effect on aquaculture animals, and can effectively purify the aquaculture waste water; the bacteria and the algae can inhibit the growth of harmful pathogenic bacteria to a certain degree; an immobilization method has simple operation; the immobilized efficient bacteria-algae microbial bactericide is easy to store and transport; and the immobilization materials are economic and practical and easy to recycle.

Description

technical field [0001] The invention belongs to the category of water treatment in the field of environmental protection, and in particular relates to a compound bacteria and algae preparation for purifying aquaculture wastewater. technical background [0002] With the rapid development of aquaculture industry, water pollution is becoming more and more serious, and the deterioration of water quality has become the main factor restricting the development of aquaculture. At present, the research on the use of microorganisms for water quality treatment is a new water quality treatment technology and method that has emerged in recent decades, and there have been many reports at home and abroad. It mainly focuses on the treatment of water quality by algae, bacteria and yeast in fungi, and uses the best immobilization method to immobilize a variety of bacteria and algae on a suitable carrier to treat aquaculture wastewater. reports have not yet been seen. [0003] Bacteria and a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/12C12N1/20C02F3/32C02F3/34
Inventor 何连生孟睿栗越妍席北斗李源谢森
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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