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A kind of sludge treatment agent and its application

A sludge treatment and treatment agent technology, applied in sludge treatment, water/sludge/sewage treatment, dehydration/drying/thickened sludge treatment, etc., can solve complex operation, high energy and material consumption, raw material cost, etc. question

Active Publication Date: 2021-08-20
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous optimization of the sludge treatment process, the treatment effect of the sludge has also been greatly improved, but in general, there are disadvantages such as complicated operation, high energy and material consumption, unstable effect, and high cost of raw materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: this sludge treatment agent and its method for reducing sludge water content and sludge toxicity, concrete operations are as follows:

[0019] (1) Crush and grind potato peels into powder, put them into a beaker, gelatinize with 0.1mol / L sodium hydroxide solution for 1 hour at 70°C, and then add cetyltrimethylammonium bromide solution Add it to the gelatinized potato skin powder, modify it at 50°C, and react for 3 hours, take out the beaker, cool it to room temperature, pour the product into absolute ethanol, carry out precipitation embrittlement, filter, and place the solid phase product in Bake in an oven at 60°C for 24 hours to prepare sludge treatment agent A; wherein, the volume to mass ratio of sodium hydroxide solution to potato peel powder is 10mL:1g, cetyltrimethylammonium bromide and The mass ratio of potato peel powder is 1:200, dissolve with distilled water earlier when using, and drop in the potato peel powder after the gelatinization with the...

Embodiment 2

[0023] Embodiment 2: this sludge treatment agent and its method for reducing sludge moisture content and sludge toxicity, concrete operations are as follows:

[0024] (1) Crush and grind potato peels into powder, put them into a beaker, gelatinize with 0.15mol / L sodium hydroxide solution for 0.8h at 75°C, and then add cetyltrimethylammonium bromide The solution is added to the gelatinized potato peel powder, modified at 60 ° C, after 2 hours of reaction, the beaker is taken out, cooled to room temperature, the product is poured into absolute ethanol, precipitated and embrittled, filtered, and the solid phase product Place in an oven and bake at 60°C for 24 hours to prepare sludge treatment agent A; wherein, the volume-to-mass ratio of sodium hydroxide solution to potato peel powder is 15mL:1g, cetyltrimethylammonium bromide The mass ratio to the potato peel powder is 1:100. When used, dissolve it with distilled water first, and add it dropwise to the gelatinized potato peel po...

Embodiment 3

[0028] Embodiment 3: this sludge treatment agent and its method for reducing sludge moisture content and sludge toxicity, concrete operations are as follows:

[0029] (1) Crush and grind potato peels into powder, put them into a beaker, gelatinize with 0.2mol / L sodium hydroxide solution for 0.5h at 80°C, and then add cetyltrimethylammonium bromide The solution was added to the gelatinized potato peel powder, and modified at 70°C. After reacting for 1 hour, the beaker was taken out, cooled to room temperature, the product was poured into absolute ethanol, precipitated and embrittled, filtered, and the solid phase product Place in an oven and bake at 60°C for 24 hours to prepare sludge treatment agent A; wherein, the volume-to-mass ratio of sodium hydroxide solution to potato peel powder is 20mL:1g, cetyltrimethylammonium bromide The mass ratio to the potato peel powder is 1:50. When used, dissolve it in distilled water first, and add it dropwise to the gelatinized potato peel p...

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Abstract

The invention discloses a sludge treatment agent, which includes a treatment agent A and a treatment agent B. The sludge treatment agent uses potato peels to prepare the treatment agents A and B to treat sludge and reduce the water content of sludge and harmful components in sludge; the addition of sludge treatment agent A can greatly kill bacteria in sludge and reduce the water content of sludge; the addition of treatment agent B can stabilize heavy metals in sludge and weaken the environment of heavy metals toxicity, and can also promote the release of bound water in the sludge, so that the water content of the sludge is significantly reduced; the production process of the present invention is simple and easy to operate, the raw materials are simple and easy to obtain, and the production cost is low, and the sludge treatment agent is prepared by making full use of domestic waste , to achieve the purpose of treating waste with waste; the invention can significantly improve the dehydration performance of sludge, and can greatly reduce the environmental toxicity of sludge, improve the feasibility of subsequent treatment and disposal of sludge, and provide comprehensive utilization of sludge Foundation.

Description

technical field [0001] The invention belongs to the technical field of sludge reduction and harmless production technology, and at the same time belongs to the field of resource application of domestic garbage, and specifically relates to a sludge treatment agent prepared by using potato peels, which is used for sludge treatment and disposal to reduce the moisture content of sludge and the toxicity of sludge. Background technique [0002] As a country with a large population, my country is the country with the largest potato production volume, with an output of nearly 100 million tons. As the fourth largest food crop in the world, potatoes are used to produce various staple foods and non-staple foods. During the potato processing process, a large amount of potato peels will be produced, and about 0.1 tons of peel dregs will be produced for every ton of potato starch produced. With the rapid development of the potato starch industry, the output of the by-product potato peel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/147C02F11/00C02F101/20
CPCC02F11/14C02F2101/20C02F2303/06
Inventor 马丽萍戴取秀任南琪宁平郭致蓥
Owner KUNMING UNIV OF SCI & TECH
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