Device for treating refractory wastewater through electrocatalytic oxidation and method

A technology of electrocatalytic oxidation and treatment device, applied in special compound water treatment, water/sewage treatment, water treatment parameter control, etc. Effects of concentration polarization and mass transfer problems

Pending Publication Date: 2018-05-01
XIAN TAIJIN NEW ENERGY & MATERIALS SCI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still a large amount of pollutants discharged into the environment, resulting in a huge waste of water resources

Method used

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  • Device for treating refractory wastewater through electrocatalytic oxidation and method
  • Device for treating refractory wastewater through electrocatalytic oxidation and method

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the drawings.

[0023] See figure 1 , 2. The device of the present invention includes a wastewater conditioning tank 1, the outlet of the wastewater conditioning tank 1 is equipped with a corrosion-resistant magnetic pump 2, and the outlet of the corrosion-resistant magnetic pump 2 is connected to the inlet of the electrocatalytic system 4 through a pipe 3 with a valve, The outlet of the electrocatalytic system 4 is connected to the effluent storage tank 8 through a pipe 7 with a valve. The electrocatalytic system 4 includes a housing 16 with an internal wastewater circulation pipe 5 and upper covers arranged on the upper and lower ends of the housing 16. 13 and the base 15, the upper cover 13 is provided with an exhaust gas outlet 6, and an electrode base 14 with a slot is installed on the base 15 in the housing 16. The slot of the electrode base 14 is equally spaced from the center of the ...

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Abstract

The invention relates to a device for treating refractory wastewater through electrocatalytic oxidation and a method. The device comprises a cylindrical cyclone electrocatalytic oxidation device, wherein a liquid outlet and a liquid inlet are formed in the upper and lower ends of the device and are separately located at tangent planes of a cylindrical device body, and the wastewater enters along acylindrical tangent line direction through a magnetic driving pump and forms cyclone along the internal wall of a cylinder. An electrode assembly consists of a DSA anode, stainless steel and a titanium cathode, and the DSA anode is lead dioxide, iridic oxide, ruthenium dioxide or a titanium-plated platinum anode. The core of the device is that the cyclone is formed by using forced water flow, a concentration polarization phenomenon inside an electrocatalytic reactor is eliminated, the mass transfer efficiency of the reactor is increased, and the reaction efficiency is increased. Proven by treatment of high-salinity wastewater of coal chemical industry, the device has good electrocatalytic oxidation capacity, the chromaticity and COD (chemical oxygen demand) of the high-salinity wastewatercan be obviously lowered, effluent can enter an evaporation crystallizing system, produced salts are qualified through detection by national salt product quality testing center, and the purity of sodium chloride and sodium sulfate reaches 99.5%.

Description

Technical field [0001] The invention relates to the treatment of organic refractory wastewater, in particular to a treatment device and method for electrocatalytic oxidation of refractory wastewater. Background technique [0002] With the rapid development of my country's industry, the discharge of a large amount of industrial wastewater has brought tremendous pressure to the environment. For example, the wastewater discharged from industries such as printing and dyeing, chemical industry, electroplating, and pharmaceuticals, although the use of biological and physical and chemical methods can treat most of the wastewater to meet the national secondary discharge standards. However, a large amount of pollutants are still discharged into the environment, causing huge waste of water resources. The national environmental protection department attaches great importance to the centralized discharge of industrial wastewater, and the realization of reclaimed water reuse and advanced was...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C02F101/30
CPCC02F9/00C02F1/66C02F1/4672C02F1/725C02F1/001C02F2101/30C02F2001/46171C02F2001/46152C02F2001/46133C02F2305/023C02F2301/046C02F2209/08C02F2201/4614C02F2201/46105
Inventor 徐尚元康轩齐冯庆张玉萍蔡继东周小康
Owner XIAN TAIJIN NEW ENERGY & MATERIALS SCI TECH CO LTD
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