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Preparation method for resin adsorbent compounded with straw activated carbon

A technology of resin adsorption and activated carbon, which is applied in chemical instruments and methods, water/sludge/sewage treatment, biological water/sewage treatment, etc., can solve the problems of oil separation and recovery, improve survival rate and activity, and greatly absorb oil High capacity and high degradation efficiency

Active Publication Date: 2015-08-19
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problem of difficult oil separation and recovery after the high oil-absorbing resin absorbs oil in the prior art, the invention provides a preparation method of a resin adsorbent compounded with rice straw activated carbon. Large, and can degrade the adsorbed oil by microorganisms, so that the resin adsorbent can effectively remove the oil in the water body for a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of preparation method that is compounded with the resin adsorbent of rice straw activated carbon, concrete steps are as follows:

[0038] (1) Preparation of rice straw activated carbon:

[0039] The dried rice straw is crushed and passed through 200 meshes to obtain rice straw powder, and the rice straw powder is added to a potassium hydroxide solution with a concentration of 30wt% for soaking, soaked for 13 hours, taken out, washed until neutral and dried to obtain activated Straw powder, the weight ratio of the straw powder to the activator solution is 1:3.5.

[0040] Put the activated rice straw powder into a muffle furnace for carbonization under the protection of nitrogen. The carbonization temperature is 600° C. and the carbonization time is 3 hours. After carbonization, the product is washed and dried to obtain rice straw activated carbon.

[0041] (2) Preparation of rice straw activated carbon immobilized microbial particles:

[0042] Get 10 parts of ab...

Embodiment 2

[0051] A kind of preparation method that is compounded with the resin adsorbent of rice straw activated carbon, concrete steps are as follows:

[0052] (1) Preparation of rice straw activated carbon:

[0053] The dried rice straw is crushed and passed through 150 meshes to obtain rice straw powder, and the rice straw powder is added to a hydrochloric acid solution with a concentration of 35wt% for soaking, soaked for 10 hours, taken out, washed until neutral and dried to obtain activated rice straw powder , the weight ratio of the rice straw powder and the activator solution is 1:3;

[0054] Put the activated rice straw powder into a muffle furnace for carbonization under the protection of nitrogen. The carbonization temperature is 450° C. and the carbonization time is 4 hours. After carbonization, the product is washed and dried to obtain rice straw activated carbon.

[0055] (2) Preparation of rice straw activated carbon immobilized microbial particles:

[0056] Get 10 par...

Embodiment 3

[0066] A kind of preparation method that is compounded with the resin adsorbent of rice straw activated carbon, concrete steps are as follows:

[0067] (1) Preparation of rice straw activated carbon:

[0068] The dried rice straw is crushed and passed through 200 meshes to obtain rice straw powder, and the rice straw powder is added to a sodium hydroxide solution with a concentration of 35wt% for soaking, soaked for 15 hours, taken out, washed until neutral and dried to obtain activated Straw powder, the weight ratio of the straw powder to the activator solution is 1:3.

[0069] Put the activated rice straw powder into a muffle furnace for carbonization under the protection of nitrogen. The carbonization temperature is 550° C. and the carbonization time is 2 hours. After carbonization, the product is washed and dried to obtain rice straw activated carbon.

[0070] (2) Preparation of rice straw activated carbon immobilized microbial particles:

[0071] Get 10 parts of above-m...

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Abstract

Relating to the resin adsorbent preparation field, the invention discloses a preparation method for a resin adsorbent compounded with straw activated carbon. The method includes: (1) preparation of straw activated carbon; (2) preparation of straw activated carbon immobilized microbial granules; (3) preparation of an acrylate copolymer emulsion; and (4) preparation of the resin adsorbent compounded with straw activated carbon. The method provided by the invention is in favor of preparation of straw activated carbon from straw stalk, effectively utilizes waste materials and is low in cost. In addition, the resin adsorbent prepared by the method provided by the invention has fast oil absorption speed and large oil absorption capacity, and can carry out microbial degradation on the adsorbed oil, so that the resin adsorbent can effectively remove oil stain from water body for a long time. Also, the activated carbon-polyvinyl alcohol-sodium alginate system is taken as the first carrier and resin is adopted as the second carrier, thus making up the disadvantages of poor mechanical properties and low strain activity of the first carrier.

Description

technical field [0001] The invention relates to the field of resin adsorbent preparation, in particular to a method for preparing a resin adsorbent compounded with rice straw activated carbon. Background technique [0002] In the past few decades, my country's industry has developed rapidly and the living standards of the people have been continuously improved. However, with the development of industry, the pollution of industry to the environment has become more and more serious. In recent years, people's awareness of environmental protection has gradually strengthened, and the government has paid more and more attention to environmental governance. [0003] Among the many sources of pollution, the problem of water pollution is particularly prominent. Among them, the leakage and discharge of industrial oil have caused huge pollution to oceans and rivers, posing a serious threat to the environment. [0004] At present, oil-absorbing materials are usually used to absorb oil ...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C02F3/34
Inventor 陈庆国刘梅刘艳萍穆军
Owner ZHEJIANG OCEAN UNIV
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