Embedding microbial agent for in-situ purification of water body and preparation method thereof

Abstract

The invention discloses a preparation method of an embedding microbial agent for in-situ purification of a water body, which compounds a plurality of microbial strains suitable for the sewage treatment with enzyme preparation, and adds nutritive salt and growth factors needed by the microbial growth in an embedding carrier so as to be more suitable for the microbial growth, so that the defects of deficient nutrition of the water body and low sewage treatment efficiency are overcome. Active carbons with strong adsorption capacity and diatomite with greater specific gravity are added in the embedding carrier; polyglutamic acid is added in the embedding carrier; the polyglutamic acid reinforces the strength of embedding particles; meanwhile, glutamic acid obtained by degrading the polyglutamic acid can be used as nutritional ingredients for the strain growth, so that preparation can be preferably colonized in a river channel without easily losing. After the embedding microbial agent is used for treating sewage for three weeks, the ammonium-nitrogen removal rate reaches 85-90%, and the COD (Chemical Oxygen Demand) removal rate reaches 90-95%.

Description

technical field

[0001] The invention belongs to the field of ecological and environmental engineering, and particularly relates to an embedded microbial agent for in-situ purification of water bodies and a preparation method thereof. Background technique

[0002] With the continuous development of my country's economy and society, more and more domestic sewage and industrial sewage are discharged into rivers, resulting in a decline in the water quality of rivers. According to the 2009 China Environmental Status Bulletin, among the 408 surface water monitoring sections of 203 rivers across the country, 57.3%, 24.3% and 18.4 of the sections had water quality of Grade I, III, Grade IV, and Grade V, respectively. The traditional in-situ remediation technology of water body is to purify the water body by adding bacteria liquid or powder preparation to the water body, but there are disadvantages such as low effective concentration of degrading bacteria, easy loss of bacteria, and ...

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