Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for treating methylene blue wastewater by using manganese silicate

A technology of methylene blue and manganese silicate is applied in water/sewage treatment, chemical instruments and methods, textile industry wastewater treatment, etc., to achieve the effects of high treatment efficiency, simple process and less material consumption

Inactive Publication Date: 2019-11-22
SHANDONG UNIV OF TECH
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report about using manganese silicate as a Fenton-type catalyst in the prior art for the treatment of methylene blue wastewater

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Take 2.84g of sodium silicate and 1.98g of manganese chloride and dissolve them in 50mL of deionized water respectively. Slowly add the sodium silicate solution into the metal salt solution under stirring to form a mixed solution, keep stirring at room temperature for 15 minutes, and centrifuge , washed three times with deionized water, and dried at 60°C to obtain brown-gray manganese silicate powder.

[0013] Dissolve 10 mg of manganese silicate in 95 mL of methylene blue wastewater with a concentration of 50 mg / L, add 5 mL of hydrogen peroxide with a mass fraction of 30% under stirring, and keep for 60 minutes. The removal rate of methylene blue reaches 96%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for treating methylene blue wastewater, which comprises the following steps: adding manganese silicate and hydrogen peroxide into the methylene blue wastewater at roomtemperature, and removing methylene blue by catalyzing Fenton-like oxidation reaction with manganese silicate. The method for treating methylene blue wastewater is simple in process, short in treatment time, less in material consumption and high in treatment efficiency, and the pH value of the wastewater does not need to be adjusted. The Fenton-like oxidation method taking manganese silicate as acatalyst is expected to become an environment-friendly wastewater treatment method.

Description

technical field [0001] The invention provides a method for treating methylene blue wastewater, which belongs to the field of dye wastewater treatment. Background technique [0002] The treatment methods of textile printing and dyeing wastewater include adsorption method, flocculation method, electrolysis method, biological method and advanced oxidation method. Fenton oxidation is the most commonly used advanced oxidation method, but it has disadvantages such as long reaction time and narrow pH range. The Fenton-like oxidation method has the advantage that it is not controlled by the pH value, and the reaction products are only clean carbon dioxide and water. Manganese oxide is a typical Fenton-like catalyst with high catalytic activity. However, the preparation process of metal oxides is complicated, the synthesis temperature is high, and the cycle is long. [0003] Metallosilicate materials have the dual characteristics of multivalent states of metal oxides and structura...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C02F1/72C02F101/38C02F103/30
CPCC02F1/722C02F1/725C02F2101/308C02F2101/38C02F2103/30C02F2305/026
Inventor 李晓伟温广武石雅丹
Owner SHANDONG UNIV OF TECH