Preparation of embedding immobilized effective microorganism gel bead

Abstract

A preparation method of embedding immobilized effective microorganism gel pellets relates to a microbial cell immobilization method for saprobe denitrification, specifically to a method taking polyvinyl alcohol and sodium alginate as the embedding agent, calcium chloride and boric acid as a cross linker and shell powder as additives to embed the effective microorganism. The invention provides a preparation method of embedding immobilized effective microorganism gel pellets which can not only effectively resolve the defects in the preparation and use process of the gel pellet, but also can effectively improve the biological denitrification effect by taking the effective microorganism as embedding thalli. The method includes: mixing uniformly the embedded agents and additives, dissolving inwater, completely dissolving and mixing uniformly and then cooling to below 40 DEG C, mixing with the centrifuged effective microorganism concentrated bacterium liquor, stirring, and then adding intothe cross-linker to form the gel pellets.

Description

Preparation method of embedded and immobilized effective microbial gel beads Technical field The invention relates to a method for immobilizing microbial cells for biological denitrification of sewage, in particular to a method that uses polyvinyl alcohol and sodium alginate as embedding agents, calcium chloride and boric acid as crosslinking agents, and shell powder as Additives, a method of embedding Effective Microorganisms (EM). Background technique Microbial embedding and immobilization technology is a relatively new technology in the field of wastewater biological treatment and treatment. It is to enclose microorganisms in natural polymer polysaccharides or synthetic polymer gels to immobilize microorganisms. Compared with the ordinary activated sludge method, the embedding and immobilization technology has the following advantages: preventing the loss of microorganisms, reaching a higher concentration of microorganisms in the reactor, anti-poisoning and impact load, goo...

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Problems solved by technology

The purpose of the present invention is to overcome the difficulties in forming gel beads and slow hardening during the embedding process, as well as the defects of gel beads strength, service life, and easy water absorption and swelling after embedding, and the biological denitrification effect of wastewater is relatively low. To overcome the poor problem, provide an embedding immobilized effective microbial gel that can not only effectively solve the shortcomings of the preparation and use of gel beads, but also use effective microorganisms (EM) as embedded bacteria, which can effectively improve the effect of biological nitrogen removal. The preparation method of glue pellet

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