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Method of adsorbing printing and dyeing waste water with straw after plasma treatment

A plasma, printing and dyeing wastewater technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problems of organic solvent consumption, poor environmental friendliness, etc., and achieve environmental friendliness, low cost, and adsorption performance high effect

Inactive Publication Date: 2015-11-11
CILIN & CAS ENVIRONMENTAL TECH ANHUIINC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these modification methods need to go through a complicated chemical reaction process, consume a large amount of organic solvents, and have poor environmental friendliness.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for adsorbing printing and dyeing wastewater after performing plasma treatment on straw, step 1: performing water purification treatment on straw to remove impurities on the surface of straw; step 2: removing impurities from straw under alkaline conditions at a temperature of 80 to 100 degrees , PH is 8; Step 3: Treat the straw after removal of impurities with plasma, the processing power is 200W, the air pressure is 10Pa, the processing time is 7min, and finally it is baked at 130°C for 5min; Step 4: Using the step 3. The obtained straw is used to adsorb the printing and dyeing wastewater.

Embodiment 2

[0018] A method for adsorbing printing and dyeing wastewater after plasma treatment of straw, step 1: performing water purification treatment on the straw to remove impurities on the surface of the straw; step 2: removing impurities from the straw under alkaline conditions, the temperature is 100 degrees, and the pH is 10; Step 3: Treat the impurity-removed straw with plasma, the processing power is 200W, the air pressure is 10Pa, the processing time is 7 minutes, and finally baked at a temperature of 130°C for 5 minutes; Step 4: Use the straw obtained in Step 3 The straw adsorbs the printing and dyeing wastewater.

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PUM

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Abstract

A method of adsorbing printing and dyeing waste water with straw after plasma treatment includes the following steps: (1) cleaning the straw with clear water to remove impurities on the straw; (2) performing impurity removal to the straw under an alkaline condition at 80-100 DEG C with the pH being 8-10; (3) performing plasma treatment to the straw after impurity removal, wherein the treatment power is 200 W, air pressure is 10 Pa and treatment time is 7 min, and baking the straw at 130 DEG C for 5 min; and (4) adsorbing the printing and dyeing waste water with the straw obtained through the step (3). In the invention, the straw is subjected to surface modification under glow discharge plasma. The method of adsorbing printing and dyeing waste water is free of any chemical substances and is free of generation of secondary pollution. The preparation method of the straw is environment-friendly in the whole pre-treatment system and is simple in operation and low in cost. The straw, compared with straw being not subjected to the pre-treatment, is higher in adsorption performance, so that the method has a better industrial application prospect.

Description

technical field [0001] The invention relates to a wastewater treatment method, in particular to a method for adsorbing printing and dyeing wastewater after plasma treatment of straw. Background technique [0002] The treatment of dye wastewater is the focus of the chemical and environmental protection industry. Since my country's printing and dyeing industry is mostly produced in small batches, most of them are intermittent operations, and the wastewater is intermittently discharged, so the water quality and quantity vary widely, the wastewater components are complex, the concentration is high, and the color is deep (500-200,000 times). Most of the organic components in wastewater are based on aromatic hydrocarbons and heterocyclic compounds, and have chromogenic groups (such as -N=N-, -N-0) and polar groups (such as -S03Na, -OH, -NH2). Due to the variety of dyes produced and the development towards anti-photolysis, anti-oxidation, and anti-biological oxidation, it is diffic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28
Inventor 陈希凡
Owner CILIN & CAS ENVIRONMENTAL TECH ANHUIINC