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Method for preparing flocculant by using substrate sludge from river bottom or pond bottom

A flocculant and bottom mud technology, applied in the field of flocculant preparation, can solve the problems of high cost and small production scale.

Inactive Publication Date: 2014-06-11
溧阳市天目湖保健品有限公司
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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

[0017] Prepare the flocculant as follows:

[0018] (1) Pretreatment of sediment: collect the sediment in the pond, remove most of the water in the collected sediment, and keep the water content of the sediment at 10%;

[0019] (2) Expansion treatment of bottom sludge: put the bottom sludge obtained in step (1) in a stirring device, put yeast in it, and then use the stirring device to stir the mixture of bottom sludge and yeast evenly, and then set its temperature If the temperature is controlled between 25 degrees Celsius, let it stand for 6 hours until the bottom mud swells up;

[0020] (3) Pulverization of the bottom sludge: first put the bottom sludge treated in step (2) into 10% sulfuric acid solution and soak for 90 minutes, and stir continuously during soaking to disperse the bottom sludge in the sulfuric acid solution, and then Use an ultrasonic cleaner to treat the sediment suspended in the sulfuric acid solution, and the power density of the ultrasonic wave is contro...

Embodiment 2

[0026] Prepare the flocculant as follows:

[0027] (1) Pretreatment of sediment: collect the sediment in the pond, remove most of the water in the collected sediment, and keep the water content of the sediment at 15%;

[0028] (2) Expansion treatment of bottom sludge: put the bottom sludge obtained in step (1) in a stirring device, put yeast in it, and then use the stirring device to stir the mixture of bottom sludge and yeast evenly, and then set its temperature If it is controlled between 30 degrees Celsius, let it stand for 5 hours until the bottom mud swells up obviously;

[0029] (3) Crushing treatment of bottom sludge: firstly put the bottom sludge treated in step (2) into 10% sulfuric acid solution and soak for 120 minutes, stir continuously during soaking to disperse the bottom sludge in the sulfuric acid solution, and then Use an ultrasonic cleaner to treat the sediment suspended in the sulfuric acid solution, and the power density of the ultrasonic wave is controlle...

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PUM

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Abstract

The invention provides a method for preparing a flocculant by using substrate sludge from a river bottom or a pond bottom. By adopting the method, the flocculant for wastewater treatment can be obtained by carrying out a series of processing on the substrate sludge from the river bottom or the pond bottom and is used as a main raw material. The method has the characteristics of green and environment-friendly material selection, and obvious flocculation effect of the prepared flocculant.

Description

technical field [0001] The invention relates to a method for preparing a flocculant, in particular to a method for preparing a flocculant by using bottom mud at the bottom of a river or a pond. 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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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52
Inventor 彭江晨芮旭婷徐清华彭继红
Owner 溧阳市天目湖保健品有限公司