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Process for treating alkaline malachite green production wastewater

A technology for wastewater treatment and wastewater treatment agent, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, water pollutants, etc. It can solve the problem of low efficiency of alkaline green wastewater treatment and achieve reactive Strong, good use effect, good degradation effect

Active Publication Date: 2019-05-10
河北瑞鑫化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a wastewater treatment process for alkaline magenta production, which solves the problem of low treatment efficiency of alkaline magenta wastewater in the prior art

Method used

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  • Process for treating alkaline malachite green production wastewater

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Effect test

Embodiment 1

[0028] A kind of wastewater treatment process for production of alkaline green, comprising the following steps:

[0029] S0, pretreatment: filter the alkaline magenta wastewater to be treated to remove impurities in the wastewater;

[0030] S1, adding an acid-base regulator to the pretreated alkaline magenta wastewater to adjust the pH of the wastewater to 5.5-6;

[0031] S2. After dissolving chlorin with ethanol, add it to an aqueous solution of poloxamer with a mass concentration of 10%, add chitosan, and stir to obtain a waste water treatment agent for future use, wherein chlorin and polox The molar ratio of chitosan to poloxamer is 1:5, and the molar ratio of chitosan to poloxamer is 1:1;

[0032] S3. Adding a wastewater treatment agent to the pH-adjusted wastewater and stirring for 20 minutes, wherein the amount of the wastewater treatment agent added accounts for 0.5% of the wastewater quality;

[0033] S4, placing the stirred wastewater under an ultraviolet lamp with ...

Embodiment 2

[0036] A kind of wastewater treatment process for production of alkaline green, comprising the following steps:

[0037] S0, pretreatment: filter the alkaline magenta wastewater to be treated to remove impurities in the wastewater;

[0038] S1, adding an acid-base regulator to the pretreated alkaline magenta wastewater to adjust the pH of the wastewater to 5.5-6;

[0039] S2. After dissolving chlorin with ethanol, add it to an aqueous solution of poloxamer with a mass concentration of 10%, add chitosan, and stir to obtain a waste water treatment agent for future use, wherein chlorin and polox The molar ratio of chitosan to poloxamer is 1:7, and the molar ratio of chitosan to poloxamer is 1:2;

[0040] S3. Adding a wastewater treatment agent to the pH-adjusted wastewater and stirring for 20 minutes, wherein the amount of the wastewater treatment agent added accounts for 0.7% of the wastewater quality;

[0041] S4, placing the stirred wastewater under an ultraviolet lamp with ...

Embodiment 3

[0044] A kind of wastewater treatment process for production of alkaline green, comprising the following steps:

[0045] S0, pretreatment: filter the alkaline magenta wastewater to be treated to remove impurities in the wastewater;

[0046] S1, adding an acid-base regulator to the pretreated alkaline magenta wastewater to adjust the pH of the wastewater to 5.5-6;

[0047] S2. After dissolving chlorin with ethanol, add it to an aqueous solution of poloxamer with a mass concentration of 10%, add chitosan, and stir to obtain a waste water treatment agent for future use, wherein chlorin and polox The molar ratio of chitosan to poloxamer is 1:12, and the molar ratio of chitosan to poloxamer is 1:3;

[0048] S3. Add wastewater treatment agent to the wastewater after pH adjustment, and stir for 35 minutes, wherein the amount of wastewater treatment agent added accounts for 1% of the wastewater quality;

[0049] S4, placing the stirred wastewater under an ultraviolet lamp with a wav...

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Abstract

The invention belongs to the technical field of wastewater treatment, and provides a process for treating alkaline malachite green production wastewater. The process includes steps of S1, adding acidity and alkalinity regulators into the to-be-treated alkaline malachite green wastewater, and regulating the pH (potential of hydrogen) of the wastewater until the pH of the wastewater reaches 5.5-6; S2, dissolving chlorin by ethyl alcohol to obtain first solution, adding the first solution into poloxamer aqueous solution to obtain second solution, adding chitosan into the second solution and stirring the chitosan and the second solution to obtain wastewater treatment agents for standby application; S3, adding the wastewater treatment agents into the wastewater with the regulated pH and stirring the wastewater and the wastewater treatment agents for 20-60 min; S4, placing the stirred wastewater below ultraviolet lamps, and allowing the ultraviolet lamps to irradiate on the stirred wastewater for 10-60 min; S5, centrifugally filtering the irradiated wastewater, detecting filtered liquid and draining the filtered liquid after the filtered liquid is qualified by detection. The process hasthe advantage that the problem of low alkaline malachite green wastewater treatment efficiency in the prior art can be solved by the aid of the process.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, and relates to a waste water treatment process for alkaline magenta production. Background technique [0002] Basic magenta green, also known as basic green 4, is a kind of dye and pigment, and its molecular formula is C 23 h 25 N 2 , the molecular weight is 329.46, green with flashing crystals, soluble in water, very soluble in ethanol, all in blue-green color, adding sodium hydroxide to its aqueous solution to produce white precipitate with green light, dyeing at high temperature (120°C), The color light remains unchanged, and the light fastness of dyeing on acrylic fiber is 4-5 grades. [0003] With the development of industrial economy, alkaline magenta is widely used in industrial fields such as textile, leather, paper, rubber, plastic and food. In the production process of alkaline magenta, a large amount of dye wastewater is produced, with high chroma and COD. The emissio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08C02F101/20C02F101/38
Inventor 刘瑞明
Owner 河北瑞鑫化工有限公司
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