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Adsorption treatment method for industrial water-soluble charged sewage

It is an adsorption treatment and charging technology, which is applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problems of large industrial sewage output, high treatment cost and complex composition, and achieve Low processing cost, simple processing steps, and easy-to-obtain materials

Inactive Publication Date: 2020-01-10
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Chemical, pharmaceutical, materials, electroplating and other industrial fields are large households of industrial sewage, which has a large output, contains multi-charged species, complex components and difficult treatment, and high treatment costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1.8 grams of bamboo powder-based ion exchange medium is filled up in the packed column of the ion exchange packed bed, and the aspect ratio of the packed column is 6, and the water-soluble charged sewage with COD of 2100 ppm flows through the column with a flow rate of 0.8cm / min. Ion exchange packed bed, the volume of treated sewage is 90 ml; the liquid flowing out from the packed bed column is the treated sewage. After being treated with bamboo powder-based ion exchange medium, the measured COD value of the sewage dropped to 230 ppm, a drop of 89%.

Embodiment 2

[0021] The bamboo powder-based ion-exchange medium that has treated sewage in Example 1 is taken out and washed with water, then eluted and regenerated with 0.8 M NaOH alkali solution, and then filled up to the packed column of the ion-exchange packed bed, and the packed column has a height-to-diameter ratio of 6 , for secondary sewage treatment; water-soluble charged sewage with a COD of 2100ppm flows through the ion exchange packed bed at a flow rate of 0.8cm / min, the volume of treated sewage is 90 ml, and the bamboo powder-based ion exchange medium is used as the packed bed After treatment, the COD value of the measured sewage dropped to 340ppm, a drop of 84%.

Embodiment 3

[0023] Wash the bamboo powder-based ion exchange medium packed bed of sewage in embodiment 2 with water, then carry out eluting regeneration with 0.8M NaOH alkali solution, fill up to the packed column of ion exchange packed bed again, packed column aspect ratio is 6. It is used for three times of sewage treatment. The organic pollutant sewage containing water-soluble nuclear power with a COD of 2100ppm flows through the ion exchange packed bed at a flow rate of 1cm / min. The volume of treated sewage is 90 ml. Bamboo powder-based ion exchange medium After being treated as a packed bed, the COD value of the measured sewage dropped to 400ppm, a drop of 81%.

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PUM

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Abstract

The invention discloses an adsorption treatment method for industrial water-soluble charged sewage. The method is characterized in that a bamboo-based material with an ion exchange function is used asan ion exchange medium, and sewage and the ion exchange medium are mixed and stirred or the sewage passes through an ion exchange medium packed bed to make charged pollutants in the sewage adsorbed to the ion exchange medium, so the purposes of purifying the sewage and removing water-soluble charged pollutants are achieved. The adsorption treatment method which utilizes the bamboo-based materialwith the ion exchange function as the ion exchange medium comprises the following three steps: adsorbing the pollutants, washing to remove residues and eluting the pollutants. The method has the advantages of low cost, easily available materials, simple treatment process and good effect, can be repeatedly used, and has wide application prospects in the fields of medicines, chemical engineering, environmental protection and the like.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and chemical industry, and in particular relates to a method for treating sewage by using bamboo-based ion exchange medium adsorption. Background technique [0002] Chemical, pharmaceutical, materials, electroplating and other industrial fields are large households of industrial sewage, which has a large output, contains multi-charged species, complex components and difficult to treat, and high treatment costs. [0003] At present, methods for treating charged sewage include chemical, biological, and physical methods. Chemical methods generally use catalysis, oxidation and other methods to transform or decompose pollutants. The disadvantage is that chemicals or catalysts need to be added to introduce secondary pollution; biological methods usually use microorganisms to transform and decompose pollutants in sewage. Effective and low cost, but the characteristics of microorganisms ...

Claims

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Application Information

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IPC IPC(8): C02F1/28C02F1/42
CPCC02F1/286C02F1/42C02F2303/16
Inventor 高云玲黄理想许瑞贠军贤
Owner ZHEJIANG UNIV OF TECH
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