Composite microbial agent for heavy metal wastewater treatment and its preparation method and application

Abstract

The invention discloses a composite microbial agent. The composite microbial agent comprises the following raw materials in parts by weight: 50-100 parts of a California streptomyce ATCC15436 culture,75-100 parts of an external mucor ATCC18358 culture, 10-100 parts of a cellulose decomposition bacteria culture, 10-100 parts of an azotobacteria culture, and 50-180 parts of a filling material. TheCalifornia streptomyce, external mucor, cellulose decomposition bacteria and azotobacteria are subjected to mixed culture to prepare pulvis which has absorption on heavy metal ions, and the compositemicrobial agent can effectively purify the industrial wastewater discharged through purifying treatment.

Description

technical field [0001] The invention relates to a microbial bacterial agent and its preparation method and application, in particular to a composite microbial bacterial agent for heavy metal wastewater treatment and its preparation method and application. Background technique [0002] Metal processing wastewater contains a large amount of waste acid, heavy metal ions such as zinc, copper, chromium, and organic brighteners. These substances are highly toxic, and some of them also contain carcinogenic, teratogenic, and mutagenic toxicity. Heavy metals generally cannot be decomposed and destroyed, but can only transfer their location and change their physical form. Therefore, industrial wastewater containing heavy metals must be recycled to eliminate or reduce environmental pollution and threats to human health. [0003] In the prior art, metal processing enterprises often use chemical reagents to adsorb heavy metal ions in sewage, but the chemical reagents used for adsorption ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, metal processing enterprises often use chemical reagents to adsorb heavy metal ions in sewage, but the chemical reagents used for adsorption will cause secondary pollution in water, and water quality will still be affected if secondary treatment is not carried out; in order to solve the secondary pollution The problem of secondary pollution, when people began to use multi-strain bacterial agents to treat sewage, however, the effect of the multi-strain bacterial agents in the prior art on metal treatment was not good, and there were many residues, and when preparing, it was necessary to Fermentation and culture separately, the steps are cumbersome and inconvenient to operate

Images