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Method for removing malachite green

A technology of malachite green and deionized water, applied in chemical instruments and methods, water/sewage treatment, electrochemical water/sewage treatment, etc., can solve the problems that malachite green research has been reported and has not been found to be removed, and achieves Significant social and environmental benefits, low processing costs, and short time-consuming effects

Inactive Publication Date: 2015-04-22
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, so far, no research on the removal of malachite green by TMT15 and PAM has been reported.

Method used

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  • Method for removing malachite green
  • Method for removing malachite green
  • Method for removing malachite green

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The method that present embodiment removes malachite green:

[0024] Step 1. Add 672mg TMT15, 400mg PAM and 80mg malachite green into a 1L volumetric flask, add deionized water to dilute to the mark and shake well to obtain a mixture;

[0025] Step 2. Adjust the pH value of the mixed solution described in step 1 to 10 by adding a sodium hydroxide solution with a concentration of 0.8 mol / L dropwise, and then adjust the mixed solution with a pH value of 10 under the condition that the temperature is 75° C. Keep warm for 0.5h, so that the malachite green in the mixture is precipitated in the form of precipitation under the synergistic effect of TMT15 and PAM, and finally the malachite green is removed by filtration.

[0026] The removal rate of present embodiment malachite green is 99.96%.

Embodiment 2

[0028] The method that present embodiment removes malachite green:

[0029] Step 1. Add 672mg TMT15, 400mg PAM and 80mg malachite green into a 1L volumetric flask, add deionized water to dilute to the mark and shake well to obtain a mixture;

[0030] Step 2. Adjust the pH value of the mixed solution described in step 1 to 10 by adding dropwise a sodium hydroxide solution with a concentration of 0.6 mol / L, and then adjust the mixed solution with a pH value of 10 under the condition that the temperature is 50° C. Keep it warm for 3 hours, so that the malachite green in the mixture is precipitated in the form of precipitation under the synergistic effect of TMT15 and PAM, and finally the malachite green is removed by filtration.

[0031] The removal rate of present embodiment malachite green is 99.54%.

Embodiment 3

[0033] The method that present embodiment removes malachite green:

[0034] Step 1. Add 560mg TMT15, 360mgmg PAM, and 80mg malachite green into a 1L volumetric flask, add deionized water to dilute to the mark and shake well to obtain a mixed solution;

[0035] Step 2. Adjust the pH value of the mixed solution described in step 1 to 12 by adding dropwise a sodium hydroxide solution with a concentration of 1 mol / L, and then place the mixed solution with a pH value of 12 at a temperature of 75° C. Keep warm for 8 hours, so that the malachite green in the mixture is precipitated in the form of precipitation under the synergistic effect of TMT15 and PAM, and finally the malachite green is removed by filtration.

[0036] The removal rate of present embodiment malachite green is 99.38%.

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Abstract

The invention provides a method for removing malachite green. The method includes the steps of firstly, well mixing TMT 15, PAM, malachite green and deionized water to obtain mixed liquor; secondly, dropwise adding alkali liquor to regulate pH of the mixed liquor to be 8-12, preserving heat for 0.5-8 hours under the temperature condition of 30-75 DEG C to allow the malachite green in the mixed liquor to be precipitated, and filtering to remove the malachite green. The method is simple in process, low in processing cost, good in processing effect and suitable for large-scale industrial production. By the method, the malachite green can be removed effectively by the aid of the synergistic effect of TMT 15 and PAM. In addition, the method is fast and efficient in malachite green removing and promising in application prospect in industrial printing and dyeing waste water treatment.

Description

technical field [0001] The invention belongs to the technical field of removing refractory organic pollutants, and in particular relates to a method for removing malachite green. Background technique [0002] As a kind of cationic dye wastewater containing aromatic hydrocarbons, malachite green (MG) is currently treated mainly by adsorption and photocatalytic oxidation methods in physical and chemical methods. The adsorbents of the former are common activated carbon and resin with excellent performance, but they are expensive and have high regeneration costs. In recent years, scholars at home and abroad have devoted themselves to the research and development of new high-efficiency and low-cost adsorbents, such as Shuizhijin activated carbon, seaweed, rectorite, wheat straw, orange peel, bean shell, bentonite, coconut shell, bagasse, rice husk, pine wood, etc. etc. Some of these materials need to undergo complex treatments such as modification and activation, while others ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/56C02F1/54C02F1/46C02F1/58
Inventor 王艳华高婵娟邓红章杨胜科
Owner CHANGAN UNIV
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