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A kind of preparation method and application of potato dregs treatment agent

A potato residue and treatment agent technology, which is applied in the direction of sludge treatment, special treatment targets, chemical instruments and methods, etc., can solve the problems of high material consumption and energy consumption, poor economy, etc., and achieve low material consumption, strong operability, The effect of promoting the development of reduction and harmless technologies

Active Publication Date: 2021-03-02
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 development of the sludge treatment process, there are more and more sludge treatment methods, and the treatment effect is gradually improved. However, looking at the above methods, there are disadvantages of high material consumption, energy consumption and poor economy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: the preparation method and application of this potato dregs treatment agent, concrete operations are as follows:

[0023] (1) Put potato residues into a beaker and add 0.2mol / L sodium hydroxide solution (volume mass ratio to potato residues is 10mL:1g), gelatinize at 80°C for 1 hour, then add octadecyl Dimethyl benzyl ammonium chloride solution, etherification reaction at 50°C for 5 hours, take out the beaker, cool to room temperature, pour the product into absolute ethanol, carry out precipitation embrittlement, filter, and put the solid phase product in an oven Bake at 60°C for 48 hours, take it out and cool to room temperature, grind the product to 90 mesh to obtain a semi-finished product;

[0024] (2) Put the semi-finished product into a multi-necked Erlenmeyer flask, add distilled water, continuously pass nitrogen into the multi-necked Erlenmeyer flask, gelatinize at 70°C for 2 hours, then add ammonium persulfate solution to react for 5 minutes, and ...

Embodiment 2

[0031] Embodiment 2: the preparation method and application of this potato residue treatment agent, concrete operations are as follows:

[0032] (1) Put potato residues into a beaker and add 0.3mol / L sodium hydroxide solution (volume mass ratio to potato residues is 15mL:1g), gelatinize at 75°C for 2h, then add octadecyl Dimethyl benzyl ammonium chloride solution, etherification reaction at 65°C for 3 hours, take out the beaker, cool to room temperature, pour the product into absolute ethanol, carry out precipitation embrittlement, filter, and put the solid phase product in an oven Bake at 60°C for 48 hours, take it out and cool to room temperature, grind the product to 60 mesh to obtain a semi-finished product;

[0033] (2) Put the semi-finished product into a multi-necked Erlenmeyer flask, add distilled water, continuously pass nitrogen into the multi-necked Erlenmeyer flask, gelatinize at 75°C for 1.5 hours, then add ammonium persulfate solution to react for 8 minutes, and ...

Embodiment 3

[0040] Embodiment 3: the preparation method and application of this potato residue treatment agent, concrete operations are as follows:

[0041] (1) Put potato residues into a beaker and add 0.5mol / L sodium hydroxide solution (volume mass ratio to potato residues is 12mL:1g), gelatinize at 70°C for 3h, then add octadecyl Dimethyl benzyl ammonium chloride solution, carry out etherification reaction at 80°C for 2 hours, take out the beaker, cool to room temperature, pour the product into absolute ethanol, carry out precipitation embrittlement, filter, and put the solid phase product in an oven Bake at 60°C for 48 hours, take it out and cool to room temperature, grind the product to 80 mesh, and obtain a semi-finished product;

[0042] (2) Put the semi-finished product into a multi-necked conical flask, add distilled water, continuously pass nitrogen into the multi-necked conical flask, gelatinize at 80°C for 1 hour, then add ammonium persulfate solution to react for 10 minutes, ...

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Abstract

The invention discloses a preparation method and application of a potato residue treatment agent. In the method, the treatment agent is prepared after potato residues are subjected to etherification and graft modification; and then the agent is used for treating municipal sludge to facilitate removal of water from the sludge and reduce the environmental risk of heavy metals in the sludge and the content of microorganisms in the sludge, and also promote degradation of organisms in the liquid phase and solid phase of the sludge. The operation of the process flow is simple and easy, and the production cost is low. The method makes full use of potato residues, the domestic waste, to prepare the sludge treatment agent to achieve the purpose of treating wastes with processes of wastes against one another. While improving the sludge dewatering property, the method improves the heavy metal characteristics of the sludge and the forms of organisms and microorganisms in the sludge, and reduces the heavy metal toxicity and biotoxicity of the sludge. The process expands the field of comprehensive utilization of potato residues, facilitates sludge reduction and harmless treatment, and provides aprecondition for resource utilization of the sludge. The method has a broad application prospect and good market outlook. The potato residues used in the invention are a general term for solid wastesproduced in the preparation process of the finished product of potatoes.

Description

technical field [0001] The invention belongs to the technical field of sludge reduction and harmless production technology, and specifically relates to a potato slag treatment agent, and the use of the potato slag treatment agent to treat sludge so as to reduce the water content in the sludge and reduce the amount of sludge on the sludge. Environmental risk of heavy metals, content of organic matter and content of harmful microorganisms in clear liquid and sludge cake. Background technique [0002] Potatoes, as a staple food that is widely consumed around the world, have a huge output. my country is rich in potato resources, its planting area and output both account for more than 25% of the world's total, and it is the country with the largest potato production in the world. According to statistics, in 2017, my country's potato planting area was about 76 million mu, and the output exceeded 76.5 million tons. Potato processing industry is a new industry emerging with the de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F251/00C08F220/56C02F11/147C02F11/00C08B31/12C02F101/20C02F101/30
CPCC02F11/14C02F2101/20C02F2303/06C08B31/125C08F251/00C08F220/56
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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