Preparation method of solid acid Fenton catalyst for processing methyl orange waste water

A technology for wastewater treatment and solid acid, which is used in textile industry wastewater treatment, physical/chemical process catalysts, chemical instruments and methods, etc. It can solve problems such as large consumption of liquid acid, loss of active components, and equipment corrosion.

Inactive Publication Date: 2011-11-02
CHONGQING UNIV OF TECH
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  • Abstract
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Problems solved by technology

[0008] In view of above-mentioned deficiencies in the prior art, the technical problem to be solved in the present invention is: how to provide a kind of preparation method of the solid acid Fenton catalyst that is used for the treatment of methyl orange wastewate

Method used

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  • Preparation method of solid acid Fenton catalyst for processing methyl orange waste water
  • Preparation method of solid acid Fenton catalyst for processing methyl orange waste water
  • Preparation method of solid acid Fenton catalyst for processing methyl orange waste water

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with specific embodiments and experiments.

[0024] A preparation method for a solid acid Fenton catalyst for the treatment of methyl orange wastewater, comprising the following steps: a, adopting granular biomass as raw material, adding concentrated sulfuric acid to carry out carbonization at a temperature of about 120 ° C, wherein the biomass For starch, glucose or β-cyclodextrin, the ratio of the volume of concentrated sulfuric acid to the mass of biomass is 2-0.4ml / g; b. Cool the carbonized material to room temperature, wash it with distilled water, and then use a temperature higher than 80°C Wash in hot water until no SO4 is detected in the supernatant 2- ions; c. Dry the washed material at a temperature of 110°C and grind it to obtain a black solid acid carbon material; d. Add active components , impregnated at room temperature for 10-15h, and then washed repeatedly with deionized wat...

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Abstract

The invention discloses a preparation method of a solid acid Fenton catalyst for processing methyl orange waste water, comprising the following steps: a, using granular starch, glucose or beta-cyclodextrin as raw material, adding concentrated sulfuric acid for carbonization at the temperature of 120 DEG C; b, cooling the carbonized material to room temperature, then washing; c, drying and grinding; d, adding active components for dipping, then washing; e, drying the obtained solid for 8-10h at the temperature of 110 DEG C; and f, after drying, roasting at the temperature of 300-700 DEG C, cooling to room temperature to obtain the corresponding solid acid heterogeneous Fenton catalyst. The prepared catalyst solves the problems of loss of active components, large liquid acid consumption, low utilization rate of H2O2, equipment corrosion, environmental pollution seriously and the like in traditional heterogeneous Fenton catalytic oxidation process, and is a green and high effective organic substance degraded Fenton catalyst.

Description

technical field [0001] The invention relates to a printing and dyeing wastewater treatment technology, in particular to a preparation method of a solid acid Fenton catalyst for organic pollutant treatment. [0002] Background technique [0003] With the development of dyestuff and printing and dyeing industry, printing and dyeing wastewater has become one of the most important sources of water pollution. The treatment of printing and dyeing industrial wastewater has always been a major problem in the field of wastewater treatment at home and abroad. At present, the main methods of research and treatment are: Fenton reagent catalytic oxidation method, ozone oxidation method, photocatalytic oxidation method, etc. Due to its high efficiency and broad spectrum, the Fenton reagent catalytic oxidation method is suitable for the treatment of high-concentration and refractory organic wastewater, and has become one of the important processes for environmental water treatment. [0...

Claims

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Application Information

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IPC IPC(8): B01J23/745C02F1/72C02F103/30
Inventor 黄国文魏丹丹
Owner CHONGQING UNIV OF TECH
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