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Method for producing coagulant aid through utilizing sheep manure

A technology of coagulant aid and sheep manure, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of small production scale and high cost

Active Publication Date: 2013-03-27
LIYANG TECH DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, because biological flocculants are still in the research stage, the production scale is small, the cost is high, and they have not been widely used.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Make the coagulant as follows:

[0019] (1) Fermentation of sheep manure: stack the collected fresh sheep manure in a sealed storage, keep the sealed anoxic state for 48 hours, keep the temperature in the storage between 30 and 35 degrees Celsius, then take out the sheep manure from the storage, put It is dried and crushed into powder;

[0020] (2) Modification of sheep manure: first soak the sheep manure treated in step (1) in a triethylamine solution with a pH of 13 for 60 minutes, and then place the soaked sheep manure in a modification solution at 55 degrees Celsius , the modification reaction time is 50 minutes, and the modification solution is 1% acrylic acid solution;

[0021] (3) Removal of solid residues: first sieve the above liquid with a 100μm sieve to remove large particles of debris; then use a 30μm filter membrane to filter;

[0022] (4) Adjustment of pH value: using sodium acetate to adjust the pH of the liquid obtained in step (3) to 6-7;

[0023] (5...

Embodiment 2

[0027] Make the coagulant as follows:

[0028] (1) Fermentation of sheep manure: pile up the collected fresh sheep manure in a sealed storage, keep the sealed anoxic state for 50 hours, keep the temperature in the storage between 30 and 35 degrees Celsius, then take out the sheep manure from the storage, put It is dried and crushed into powder;

[0029] (2) Modification of sheep manure: first soak the sheep manure treated in step (1) in a triethylamine solution with pH 13 for 70 minutes, and then place the soaked sheep manure in a modification solution at 60 degrees Celsius , the modification reaction time is 40 minutes, and the modification solution is 0.8% acryloyl ester solution;

[0030] (3) Removal of solid residues: first sieve the above liquid with a 100μm sieve to remove large particles of debris; then use a 30μm filter membrane to filter;

[0031] (4) Adjustment of pH value: using sodium acetate to adjust the pH of the liquid obtained in step (3) to 6-7;

[0032] (...

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PUM

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Abstract

The invention provides a method for producing a coagulant aid through utilizing sheep manure. According to the method, the sheep manure is utilized as a main raw material, and the sheep manure is subjected to a series of processing to obtain the coagulant aid which can be used for wastewater treatment. The method has the characteristics that the selected material is environment-friendly and waste recovery is realized.

Description

technical field [0001] The invention relates to a preparation method of a coagulation aid, in particular to a preparation method of a coagulation aid using sheep manure as a main raw material. Background technique [0002] Among water treatment methods, flocculation is one of the important methods. The currently used flocculants and coagulants are mainly inorganic compounds and synthetic organic compounds. The large amount of inorganic flocculants is easy to cause secondary pollution, especially the large-scale application of aluminum salts, which has an increasingly prominent impact on the environment, especially for the treatment of drinking water. A large amount of aluminum salts will lead to an increase in the incidence of Alzheimer's disease. Due to the use of most artificially synthesized polymer organic compounds as flocculants or coagulants, monomers remaining in water are toxic and harmful to human health, such as polyacrylamide, which is commonly used at present. ...

Claims

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Application Information

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IPC IPC(8): C02F1/56
Inventor 彭江晨芮旭婷
Owner LIYANG TECH DEV CENT
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