A kind of microbial desilting agent and preparation method thereof

Abstract

The invention relates to a microbe dredging agent. A porous zeolite is employed as a carrier; and mixed bacteria of actinomycetes, nitrosomonas eutropha, nitrobacter winogradskyi, paracoccus pantotrophus and bacillus megaterium, in a certain proportion, are used as dredging bacteria. The five specific dredging bacteria form a ''cell family'', which, through mutual conversion metabolism, not only can play a role of water purification in an oxygen-rich water area, but also can play a role of biological decomposition and conversion in a low-oxygen even anoxic environment (e.g. water-bed mud) andsalty water area (e.g. gulf), so as to purify sewage and improve water quality. The invention employs a porous zeolite with a high absorptivity as a fixed carrier of the dredging bacteria, so that the dredging bacteria are more firmly fixed and not easily flushed by water; because the zeolite is apt to sinking, the microbe dredging agent of the invention is especially suitable for water-bed dredging of river and lake, etc. In addition, the preparation method of the microbe dredging agent of the invention has mild conditions, a simple technology and advantages of low production costs and benefit for popularization and application.

Description

technical field

[0001] The invention belongs to the technical field of microbial environmental protection, and in particular relates to a microbial dredging agent and a preparation method thereof. Background technique

[0002] Microbial water purifier is a preparation that uses microorganisms to purify sewage. It generally uses adsorption, covalent bonding, cross-linking or embedding methods to immobilize microbial purification bacteria that can purify sewage on a specific carrier. made on top. General microbial water purifiers are suitable for sewage purification in small-scale aquaculture waters such as ponds. For flowing waters, especially bottom dredging in flowing waters, ordinary microbial water purifiers are difficult to play a role (microbial purifiers applied to bottom dredging The water agent can be called microbial desilting agent), the main reasons are as follows: 1. The purification bacteria used are basically aerobic bacteria, such as Bacillus subtilis, which ...

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