Application of bio-enzyme catalysis in residual sludge treatment

A technology of excess sludge and biological enzymes, applied in biological sludge treatment, sludge treatment, water/sludge/sewage treatment, etc., can solve the lack of attention to final disposal problems, hidden dangers of final disposal of harmful sludge, and sludge utilization The efficiency is not very high, etc., to achieve the effect of easy to master the operation method, less operators, and protect the water environment

Active Publication Date: 2011-04-13
孙祥章
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] According to the specific method disclosed in the claims, biological enzyme catalysis technology is used to treat and dispose the surplus sludge of urban sewage treatment plants to produce organic fertilizer.

[0052] Add 2kg of compound biological enzymes and 1kg of microbial strains to 1000kg of sludge with a moisture content of about 60-80% after concentration and dehydration, where the compound biological enzymes include pectinase, protease, lipase, cellulase, hydrogen peroxide Enzyme, amylase, etc. Microbial strains include nitrogen-fixing bacteria, organic phosphorus bacteria, inorganic phosphorus bacteria and potassium bacteria, etc. The proportion of each component is: pectinase 8%, protease 13%, lipase 13%, cellulase 12%, catalase 8%, amylase 10%; nitrogen-fixing bacteria 30%, organic phosphorus bacteria 30%, inorganic phosphorus bacteria 15%, potassium bacteria 20%, waste straw and bran 5%. Mix it evenly and send it to the fermentation warehouse for fermentati...

Embodiment 2

[0055] According to the specific method disclosed in the claims, biological enzyme catalysis technology is used to treat and dispose the surplus sludge of urban sewage treatment plants to produce organic fertilizer.

[0056] Add 5kg of compound biological enzymes and 2.5kg of microbial strains to 1000kg of sludge with a moisture content of about 60-80% after concentration and dehydration, wherein the compound biological enzymes include pectinase, protease, lipase, cellulase, peroxidase Hydrogenase, amylase, etc. Microbial strains include nitrogen-fixing bacteria, organic phosphorus bacteria, inorganic phosphorus bacteria and potassium bacteria. 8%, 30% lipase, 8% cellulase, 20% catalase, 14% amylase; the percentage of microbial strains in 2.5kg: 23% nitrogen-fixing bacteria, 20% organic phosphorus bacteria, inorganic phosphorus Bacteria 25%, potassium bacteria 32%; straw 40%. 1) Mix or contact the prepared biological enzyme and microbial bacteria with the sludge evenly, and s...

Embodiment 3

[0058] According to the specific method disclosed in the claims, biological enzyme catalysis technology is used to treat and dispose the surplus sludge of urban sewage treatment plants to produce organic fertilizer.

[0059]Add 50kg of compound biological enzymes and 50kg of microbial strains to 1000kg of sludge with a water content of about 60-80% after concentration and dehydration, where the compound biological enzymes include pectinase, protease, lipase, cellulase, hydrogen peroxide Enzyme, amylase, etc. Microbial strains include nitrogen-fixing bacteria, organic phosphorus bacteria, inorganic phosphorus bacteria and potassium bacteria, etc. The proportion of each component is: pectinase 4%, protease 30%, lipase 8%, cellulase 25%, catalase 8%, amylase 25%; nitrogen-fixing bacteria 20%, organic phosphorus bacteria 29%, inorganic phosphorus bacteria 19%, potassium bacteria 32%, bran, straw 25%. Mix it evenly and send it to the fermentation warehouse for fermentation. The com...

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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...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F11/02
Inventor 孙祥章齐爱玖孙靖远林祥进
Owner 孙祥章
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