Adsorbent for petrochemical wastewater treatment and preparation method thereof

A waste water treatment, petrochemical technology, applied in the direction of water/sewage treatment, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve the problems of complex regeneration, difficulty in large-scale use, and expensive activated carbon, so as to improve the adsorption performance , Improve stability and strength, and enrich the effect of surface properties

Active Publication Date: 2018-07-31
永春科盛机械技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Activated carbon is difficult to use on a large scale due to its high price and complex regeneration.

Method used

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  • Adsorbent for petrochemical wastewater treatment and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of an adsorbent for petrochemical wastewater treatment, comprising the steps of:

[0024] (1) Preparation of modified composite powder: 15 parts of dedecyltrimethylphosphorus bromide modified attapulgite and 20 parts of tetraethylenepentamine modified rectorite were dispersed in 100 parts of toluene, and heated at room temperature Under ultrasonic vibration for 1h, then add 10 parts of quaternary ammonium salt tetrameric surfactant and 6 parts of polyacrylamide as modifier to carry out modification reaction, the modification reaction is carried out in water with polytetrafluoroethylene lining It is carried out in a thermal reaction kettle, the hydrothermal reaction temperature is 80°C, and the reaction time is 6 hours. After the reaction is completed, centrifuge, wash, and dry to obtain the modified composite powder;

[0025] (2) Preparation of composite cross-linked adsorbent: Add the modified composite powder obtained in step (1) to 10 parts of ch...

Embodiment 2

[0028] A preparation method of an adsorbent for petrochemical wastewater treatment, comprising the steps of:

[0029] (1) Preparation of modified composite powder: take 30 parts of dedecyltrimethylphosphorous chloride modified attapulgite and 40 parts of triethylenetetramine modified rectorite and disperse them in 180 parts of N,N-dimethyl In base formamide, and ultrasonic vibration at room temperature for 2h, then add 15 parts of quaternary ammonium salt tetrameric surfactant and 12 parts of polyacrylamide as modifiers for modification reaction, the modification reaction is carried out with Carry out in a polytetrafluoroethylene-lined hydrothermal reaction kettle, the hydrothermal reaction temperature is 120°C, and the reaction time is 10h. After the reaction is completed, centrifuge, wash, and dry to obtain the modified composite powder;

[0030] (2) Preparation of composite cross-linked adsorbent: Add the modified composite powder obtained in step (1) to 15 parts of chloroa...

Embodiment 3

[0033] A preparation method of an adsorbent for petrochemical wastewater treatment, comprising the steps of:

[0034] (1) Preparation of modified composite powder: 20 parts of cetyltriphenylphosphine chloride modified attapulgite and 30 parts of EDTA modified rectorite were dispersed in 150 parts of tetrahydrofuran, and Ultrasonic vibration at room temperature for 1.5h, and then add 12 parts of quaternary ammonium salt tetrameric surfactant and 8 parts of polyacrylamide as modifiers for modification reaction, the modification reaction is carried out in a polytetrafluoroethylene It is carried out in a lined hydrothermal reaction kettle, the hydrothermal reaction temperature is 100°C, and the reaction time is 8h. After the reaction is completed, centrifuge, wash, and dry to obtain the modified composite powder;

[0035] (2) Preparation of composite cross-linked adsorbent: Add the modified composite powder obtained in step (1) to 13 parts of chloroacetic acid, 12 parts of glutara...

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Abstract

The invention provides a preparation method of an adsorbent for petrochemical wastewater treatment, the specific steps include: (1) preparation of modified composite powder; (2) preparation of composite cross-linked adsorbent; (3) magnetic composite adsorbent preparation; the adsorbent of the present invention is compounded with modified attapulgite and modified rectorite as raw material, wherein, after modification of attapulgite and rectorite, organic groups are introduced on its surface, which greatly enriches its surface properties, improving its adsorption performance; in addition, the present invention also adopts quaternary ammonium salt tetrameric surfactant and polyacrylamide to carry out secondary modification on the modified attapulgite and modified rectorite composite, so that the composite surface is further Embed organic groups with large molecular weight, improve its alternating performance and adsorption performance, and improve the stability and strength of the adsorbent by introducing chloroacetic acid, glutaraldehyde and chitosan for cross-linking reaction, so that the obtained adsorbent can be stable And efficient adsorption to remove petrochemical wastewater.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to an adsorbent for petrochemical wastewater treatment and a preparation method thereof. Background technique [0002] With the development of the economy, there are more and more chemical plants in various places, and the treatment of industrial sewage has become a hot spot of concern from all walks of life. The discharge of traditional electroplating, tanning, metal surface treatment, printing and dyeing, petrochemical and other organic pollutants is increasing. Increase. [0003] Petrochemical industry is an important part of the chemical industry, plays an important role in the development of the national economy, and is one of the pillar industries of our country. Petrochemical refers to the processing industry that uses oil and natural gas as raw materials to produce petroleum products and petrochemical products. Petroleum products, also known as oil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28B01F17/18C09K23/18
CPCC02F1/285B01J20/267B01J20/28009C09K23/00
Inventor 向红先
Owner 永春科盛机械技术开发有限公司
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