Method for rapidly removing residual sludge moisture of sewage treatment of beer production enterprise

A technology for the treatment of surplus sludge and sewage, which is applied in the directions of food industry wastewater treatment, water/sludge/sewage treatment, dehydration/drying/concentrated sludge treatment, etc. Sludge capacity and the effect of reducing production cost

Inactive Publication Date: 2017-11-17
YANJING BEER GUILIN LIQUAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the invention can synergistically treat beer sludge and beer waste liquid, and remove the moisture in the sludge to 50-60%, it is cumbersome to modify the sludge
At present, there is no relevant report on the application of soot sludge to the dehydration of residual sludge after sewage treatment in beer production enterprises

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Put the excess sludge that needs to be discharged after being treated by the sewage treatment system (the moisture content of the excess sludge is 99%) into the concentration tank, and add cationic polyacrylamide solution on the pipeline path that drives the excess sludge into the concentration tank (The mass concentration is 0.1%, and the addition of cationic polyacrylamide is controlled to be 0.1% of the absolute dry weight of the excess sludge), so that the excess sludge can be mixed with the ionic polyacrylamide during the flow of the pipeline. Flocculation, after it enters the concentration tank, a large amount of clear water will be separated out, and the supernatant will be discharged. At this time, the water content of the sludge in the pool is 94.4%. m 3 , the specific surface area is 5.654m 2 / g, the water absorption is 0.65 times of its own volume), the amount of soot sludge added is calculated on the absolute dry weight, and the amount added is controlled t...

Embodiment 2

[0027] Put the excess sludge that needs to be discharged and disposed of after being treated by the sewage treatment system (the moisture content of the excess sludge is 99.3%) into the concentration tank, and add cationic polyacrylamide solution on the pipeline path that drives the excess sludge into the concentration tank (The mass concentration is 0.08%, and the addition of cationic polyacrylamide is controlled to be 0.12% of the absolute dry weight of the excess sludge), so that the excess sludge can be mixed with the ionic polyacrylamide during the flow of the pipeline. Flocculation, after it enters the concentration tank, a large amount of clear water will be separated out, and the supernatant will be discharged. At this time, the water content of the sludge in the pool is 94%. m 3 , the specific surface area is 5.5m 2 / g, the water absorption is 0.5 times of its own volume), the amount of soot sludge added is calculated by absolute dry weight, and its added amount is c...

Embodiment 3

[0029] Put the excess sludge that needs to be discharged and disposed of after being treated by the sewage treatment system (the moisture content of the excess sludge is 99.3%) into the concentration tank, and add cationic polyacrylamide solution on the pipeline path that drives the excess sludge into the concentration tank (The mass concentration is 0.05%, and the addition of cationic polyacrylamide is controlled to be 0.08% of the absolute dry weight of the excess sludge), so that the excess sludge can be mixed with the ionic polyacrylamide during the flow of the pipeline. Flocculation, after it enters the concentration tank, a large amount of clear water will be separated out, and the supernatant will be discharged. At this time, the water content of the sludge in the pool is 94%. m 3 , the specific surface area is 5.654m 2 / g, the water absorption is 0.65 times of its own volume), the amount of soot sludge added is calculated on the absolute dry weight, and the amount add...

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Abstract

The invention discloses a method for rapidly removing excessive sludge moisture of sewage treatment of a beer production enterprise. The method comprises the steps that residual sludge needing to be discharged after treatment of a sewage treatment system is collected, a flocculating agent is added into the residual sludge, and the moisture content of the flocculated sludge is controlled to be 95% or below; the flocculated sludge is mixed with smoke dust mud, is evenly stirred and then is fed into a plate-and-frame filter press for dehydration, and the sludge with the moisture content lower than 60% is obtained, wherein the adding amount of the smoke dust mud is 15% or above of the absolute dry weight of the flocculated sludge. The method is simple in sludge modification treatment, high in dehydration speed and better in effect.

Description

technical field [0001] The invention relates to a sludge dehydration method, in particular to a method for quickly removing excess sludge moisture from sewage treatment in beer production enterprises. Background technique [0002] After years of development, the sewage treatment process of beer production enterprises has gradually formed a comprehensive biological treatment mode of "anaerobic + aerobic" two stages. Like the biological treatment of urban sewage, a large amount of excess sludge will also be produced during the biological treatment of beer wastewater. The moisture content of the excess sludge is usually 95-99%. They need to be discharged from the sewage treatment system in time, otherwise it will cause the sewage treatment system The increase in energy consumption will also affect the normal operation of the sewage treatment system. For the treatment of excess sludge, the first and key step is dehydration. The purpose of sludge dehydration is to reduce the moi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/14C02F11/12C02F103/32
CPCC02F11/122C02F11/14C02F2103/325
Inventor 曾庆荣李继远
Owner YANJING BEER GUILIN LIQUAN
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