Biological purification agent applied to sewage of livestock and poultry farms and preparation method thereof

Abstract

The invention discloses a biological purification agent applied to sewage of livestock and poultry farms and a preparation method thereof. The preparation method comprises the following steps: firstlyadding a compound microorganism bacterium agent into an immobilized carrier formed by three carriers including sodium alginate zeolite, sodium alginate and polyvinyl alcohol to obtain a bacterium solution, wherein the mass ratio of the immobilized carrier to the compound microorganism bacterium agent is (200-300) to 1, the compound microorganism bacterium agent contains rhodospirillum, nitrifyingbacteria and bacillus subtilis according to a volume ratio of 1 to 1 to 1, and the number of effective living bacteria in per gram of the compound microorganism bacterium agent is greater than or equal to 109; then dropping the bacterium solution into a boric acid saturated solution with 4-8% of CaCl2 to obtain globular immobilized compound microorganisms; finally enabling the immobilized compound microorganisms to stand and cure under the condition of 4 DEG C, carrying out immobilized crosslinking for 24 hours to obtain immobilized microorganism globules, washing the immobilized microorganism globules with deionized water for at least three times to obtain the biological purification agent. The preparation method is simple and is low in cost; the prepared purification agent has strong stability, and high microorganism activity, is environmentally friendly, and is free of secondary pollution.

Description

technical field [0001] The invention relates to a sewage purifying agent, in particular to a sewage biological purifying agent for livestock and poultry farms and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of large-scale livestock and poultry breeding industry, different scales of farms have emerged, and the potential environmental pollution caused by livestock and poultry farming has become increasingly apparent, and has become increasingly prominent with the increase in people's awareness of environmental protection . And large-scale intensive farms are the direction for the future development of animal husbandry in my country. Therefore, the control of environmental pollution in farms is related to the sustainable development of animal husbandry. In recent years, the excrement and urine discharge of large-scale livestock and poultry farms in China has ranked first among agricultural pollution sources, and has b...

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Problems solved by technology

The existing biological method has defects such as huge investment and high operating cost, and the effect is not ideal. Therefore, it is necessary to provide a new technical solution to solve the above problems

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