Method for oxidative degradation of organic pollutants in water by compounding heterogeneous iron-based material with sulfite under aeration condition

A compound sulfite and organic pollutant technology, applied in the field of organic pollutants, can solve problems such as low iron utilization rate, large sludge production, and accumulation of ferric iron, so as to improve utilization rate, reduce sludge production, and improve Economical effect

Inactive Publication Date: 2017-11-03
安徽同新源科技有限公司
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Problems solved by technology

The Fenton system is usually implemented using iron-based materials and peroxides (hydrogen peroxide, persulfate), but due to the limited ability of peroxides to reduce ferric iron to ferrous iron, ferric iron will accumulate, making The traditional Fenton system has a good effect only under strong acidic conditions (pH<4.0), and the sludge production is large and the iron utilization rate is low

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  • Method for oxidative degradation of organic pollutants in water by compounding heterogeneous iron-based material with sulfite under aeration condition
  • Method for oxidative degradation of organic pollutants in water by compounding heterogeneous iron-based material with sulfite under aeration condition
  • Method for oxidative degradation of organic pollutants in water by compounding heterogeneous iron-based material with sulfite under aeration condition

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Embodiment Construction

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] The following is the general method of the present invention:

[0019] A method for oxidizing and degrading organic pollutants in water by using heterogeneous iron-based material composite sulfite under aeration conditions, aeration is carried out into the organic polluted water body to be treated, and iron-based materials and sulfites are respectively put into oxygen-enriched water. Sulfate.

[0020] Further, the content of iron element in the described...

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Abstract

The invention relates to a method for oxidative degradation of organic pollutants in water by compounding a heterogeneous iron-based material with sulfite under an aeration condition. According to the invention, the oxygen content of a water body is increased through air aeration or oxygen aeration of the water body; the iron-based material and sulfite are added into the water body; and a series of reactions are carried out so as to produce active oxidizing agents like free sulfate radicals, free hydroxyl radicals and free monopersulfate radicals for degradation of organic pollutants. The method provided by the invention is efficient, economic, green, simple and wide in an application scope, ensures standard-reaching discharge of refractory organic wastewater produced in industrial production, and can guarantee water supply safety for aquatic products with organic contaminated water as a water source.

Description

technical field [0001] The invention relates to a method for oxidatively degrading organic pollutants in water by utilizing a heterogeneous iron-based material composite sulfite under aeration conditions. Background technique [0002] With the improvement of the state's requirements for industrial sewage and wastewater discharge and domestic drinking water sanitation and safety requirements, the development of economical and efficient technologies for removing biodegradable organic pollutants in water bodies has significant economic and social benefits. For the industrial organic wastewater and organic micro-polluted water that are difficult to biodegrade, the advanced oxidation method is considered to be an effective technology. Among the known advanced oxidation methods, Fenton (Fenton refers to the British Fenton found that Fe / ; H 2 O 2 The system can oxidize a variety of organic substances. Later generations named the combination of ferrous salt and hydrogen peroxide ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72C02F1/74
CPCC02F1/72C02F1/74
Inventor 程旭赵元强阮添添
Owner 安徽同新源科技有限公司
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