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Preparing for protein foam fire-extinguisher by active sludge protein

A foam fire extinguishing agent and activated sludge technology, applied in fire protection equipment and other directions, can solve the problems of insufficient supply of scraps and high price of protein solution, and achieve the effect of reducing secondary pollution

Inactive Publication Date: 2003-11-19
HUBEI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the current lack of domestic feed protein resources, such cakes for extracting plant proteins are mostly used as feed additives or food additives, including cottonseed cakes (1,000 yuan / ton) and rapeseed cakes (1,000 yuan / ton) containing toxic substances. , castor cake (980 yuan / ton, based in Inner Mongolia) and waste from non-toxic monosodium glutamate factories, sugar factories, and wineries (1300-1500 yuan / ton, dry powder), and the supply of such waste is seriously insufficient. Even if the protein solution is produced, the price is extremely high, which is unacceptable to the fire-fighting material factory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Activated sludge protein extracted by existing technology is used to prepare biochemical protein foam fire extinguishing agent. The process is: use the hydrolyzed concentrate of activated sludge protein as the base material, and prepare appropriate additives such as stability, anticorrosion, and antifreeze to make activated sludge protein foam fire extinguishing agent.

Embodiment 2

[0012] Embodiment 2: put remaining activated sludge (comprising factory wastewater treatment activated sludge, municipal domestic sewage treatment residual activated sludge) into enamel or stainless steel container, add HCl or H 2 S 2 Adjust the pH to 1-2, hydrolyze at 110-125C for 2-6 hours, filter, adjust the pH to slightly acidic, neutral or slightly alkaline, and concentrate to obtain the activity required for the preparation of biochemical protein foam fire extinguishing agents sludge protein.

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PUM

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Abstract

A protein foam fire-extinguishing chemical for the accident fire in oil field, oil depot, petrochemical area, etc is prepared from active sludge protein extracted from active sludge. Its advantages are no environmental pollution and low cost.

Description

technical field [0001] The invention relates to a method for preparing protein foam fire extinguishing agent by using activated sludge protein and extracting protein from activated sludge. technical background [0002] At present, domestic food factory sewage, fermentation factory sewage, and urban domestic sewage are treated with a large amount of activated sludge. Most of the treatment methods are to dry the activated sludge and pour it into a fixed place. Some manufacturers sell it as fertilizer or feed. Due to the high content of heavy metal ions and inorganic ions, there are very few factories used as feed, and a large amount of activated sludge causes secondary pollution. With the increasing seriousness of sludge secondary pollution, my country has also carried out research on the extraction and utilization of activated sludge protein. But they all focus on the development and utilization of protein nutrition. Such as "Using activated sludge to develop protein resour...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/02
Inventor 李亚东韩国灿居超明
Owner HUBEI UNIV
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