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Preparation method of resin adsorbent based on composite kieselguhr

A composite diatomite and resin adsorption technology, applied in chemical instruments and methods, alkali metal compounds, alkali metal oxides/hydroxides, etc., can solve the problems of poor treatment of oily polluted wastewater and achieve excellent oil retention , high degradation efficiency and good stability

Inactive Publication Date: 2018-12-21
潘钕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sewage treatment agent prepared by this method is not good for the treatment of oil body polluted wastewater

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation method of the resin adsorbent based on composite diatomite comprises the following steps:

[0027] (1) Diatomite activation: take diatomite and heat it in a muffle furnace at 280°C for 3h, take it out and cool it to room temperature, then add a hydrochloric acid solution with a volume concentration of 9%, heat it to 85°C and keep it warm for 2h, then centrifuge, After washing, add oxalic acid solution with a volume concentration of 8%, stir at room temperature for 2 hours, centrifuge, wash, and dry at 115°C to obtain activated diatomite; diatomite activated by acid solution, oxide Reduced impurity content, SiO 2 As the content increases, the specific surface area and pore volume increase, and the adsorption performance is improved;

[0028] (2) Diatomite surface modification: at room temperature, add chitosan to the slowly stirred L-amino acid aqueous solution, then slowly add the mixed solution of chlorogenic acid and 4-hydroxyphenylethanol, add the ac...

Embodiment 2

[0035] A kind of preparation of composite diatomite sewage treatment agent comprises the following steps:

[0036] (1) Diatomite activation: take diatomite and heat it in a muffle furnace at 300°C for 4h, take it out and cool it to room temperature, then add a hydrochloric acid solution with a volume concentration of 11%, heat it to 90°C and keep it warm for 3h, then centrifuge, After washing, add an oxalic acid solution with a volume concentration of 11%, stir at room temperature for 3 hours, centrifuge, wash, and dry at 120°C to obtain activated diatomite;

[0037] (2) Diatomite surface modification: at room temperature, add chitosan to the slowly stirred L-amino acid aqueous solution, then slowly add the mixed solution of chlorogenic acid and 4-hydroxyphenylethanol, add the activated diatom Soil, ultrasonically mix the solution at 40°C for 80 minutes, centrifuge, wash with water until neutral, and then vacuum-dry the solid solute for 22 hours; a layer of light yellow viscou...

Embodiment 3

[0042] A kind of preparation of composite diatomite sewage treatment agent comprises the following steps:

[0043] (1) Diatomite activation: take diatomite and heat it in a muffle furnace at 320°C for 5h, take it out and cool it to room temperature, then add a hydrochloric acid solution with a volume concentration of 13%, heat it to 95°C and keep it warm for 4h, then centrifuge. After washing, add an oxalic acid solution with a volume concentration of 14%, stir at room temperature for 4 hours, centrifuge, wash, and dry at 130°C to obtain activated diatomite;

[0044] (2) Diatomite surface modification: at room temperature, add chitosan to the slowly stirred L-amino acid aqueous solution, then slowly add the mixed solution of chlorogenic acid and 4-hydroxyphenylethanol, add the activated diatom Soil, ultrasonically mix the solution at 50°C for 100 minutes, centrifuge, wash with water until neutral, and then vacuum-dry the solid solute for 24 hours; a layer of light yellow visco...

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PUM

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Abstract

The invention discloses a preparation method of a resin adsorbent based on composite kieselguhr. The kieselguhr is adopted as a first carrier, a resin is adopted as a second carrier, and a microorganism strain is fixed. The resin is prepared through the steps of adding 5 to 20 parts by weight of kieselguhr immobilized microorganism, 0.1 to 0.5 part by weight of a coupling agent, 1 to 3 parts by weight of butyl hydroxy anisd and 1 to 5 parts by weight of tetrahydrocannabinol into an acrylate copolymer emulsion, uniformly stirring at the normal temperature at low speed, and vacuum drying to obtain the resin adsorbent based on the composite kieselguhr. The adsorbent prepared through the method has the advantages of fast oil absorption speed, high oil absorption capacity, long microorganism preservation time, long service life and the like.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a preparation method of a composite diatomite-based resin adsorbent. technical background [0002] With the development of socio-economic technology and rapid population growth, human demand for water resources is gradually increasing. At present, my country's water resources are becoming scarce resources step by step. However, while water resources are scarce, the discharge of sewage has caused serious environmental pollution, so the treatment of sewage has been paid more and more attention. 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. [0003] There are many methods of sewage treatment. There are physical methods: mainly to separate and remove insoluble suspended pollutan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30
CPCB01J20/046B01J20/14B01J20/24B01J20/265B01J20/28054
Inventor 潘钕
Owner 潘钕
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