Application of bio-enzyme catalysis in residual sludge treatment

Abstract

A bio-enzyme consists of pectinase, protease, lipase, cellulose, catalase and amylase; the application of bio-enzyme catalysis in residual sludge treatment is that: the residual sludge is treated by utilizing the high-efficiency biocatalysis of the bio-enzyme, odor molecules in the sludge are decomposed and deodorized through enzyme technology, pathogenic bacteria, ova and larvae are killed by utilizing an acid environment formed by inorganic acid generated by the sludge and a high temperature environment in the fermentation process, heavy metal ions in the sludge are stabilized by utilizing the chelation of the bio-enzyme, and the sludge is catalyzed by the enzyme, so that the sludge and water are quickly separated, a large amount of supernate is discharged, the sludge volume is reduced, and the sludge in inland river is reduced and is subjected to innocent treatment; meanwhile, through the bio-enzyme catalysis, long-chain molecules in the sludge are converted into short-chain molecules, polysaccharide and cellulose are converted into protein and amino acid, nutritional components of organic fertilizers are remained, the fertilizer efficiency is improved and the fermentation period can be shortened.

Description

technical field [0001] The invention specifically relates to the application of biological enzyme catalysis in the treatment and disposal of excess sludge. Background technique [0002] In the process of sewage treatment, as well as natural water bodies such as inland rivers, a large amount of sludge will be produced. The moisture content of the sludge is as high as 95% to 99%, resulting in a huge volume of the sludge, which brings great difficulties to the subsequent treatment of the sludge. The components of sludge are complex and highly variable. The flocs are composed of suspended solids in water through cementation and coagulation in different ways. It has a branch and network structure similar to fluff, and it is in a gel-like liquid state. Its main feature is its high water content. In addition to containing a large amount of water, it also contains refractory organic matter, heavy metals and salts, as well as a small amount of pathogenic microorganisms and parasite...

AI Technical Summary

Problems solved by technology

It is difficult for many treatment plants to find suitable sludge disposal methods and sludge disposal sites; the foundation of sludge utilization in my country is weak, people's understanding of sludge utilization is seriously insufficient, and there is a lack of attention to the final disposal of sludge, which has given some harmful The final disposal of the sludge has left hidden dangers; the utilization rate of the sludge is not very high, and there are still some sewage plant sludges that are only stored and then transported to the suburbs by the sanitation department for direct stacking, especially in some southern cities in China. Way

This disposal method not only affects the normal operation of the sewage plant, but at the same time, the random stacking of sludge may cause secondary pollution and waste sludge resources.