A weak electric pulse activation-quenching agglomeration desalination reactor for treating industrial wastewater

Abstract

The invention discloses a weak electric pulse activated-quenching aggregation desalting reactor for treating industrial wastewater. The reactor creatively utilizes the characteristic that inorganic salts in an aqueous solution generate powder aggregation under the action of weak current, low-pressure pulse current is applied to wastewater with higher-concentration inorganic salts, and inorganic salt ions are aggregated on a magnetized metal surface and converted into an ion powder group with high specific surface energy and unstable thermodynamics. When the aqueous solution is quickly cooled, the ion powder group in the solution can quickly generate molecular aggregation and separate from the solution to form suspended substances so as to reduce the free enthalpy of the whole solution dispersion system; and in a low temperature state, salt molecules of the aggregated suspended substances can be removed from the solution in a precipitation mode.

Description

technical field [0001] The invention relates to a weak electric pulse activation-quick cooling agglomeration desalination reactor for treating industrial waste water, which belongs to the waste water treatment field in environmental protection. Background technique [0002] In the context of global climate change and energy shortages, low-carbon economic development models based on low energy consumption, low pollution, and low emissions are being valued. The work of energy conservation and emission reduction bears a major responsibility. [0003] As the basic industry of my country's industrial development, the iron and steel industry has become an important force leading the world's iron and steel industry. The scale and development momentum of China's iron and steel industry have attracted worldwide attention. However, the iron and steel industry is both a major water user and a major pollutant discharger. With the rapid development of modern industry, problems such as s...

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Problems solved by technology

However, the electro-adsorption desalination technology also has shortcomings, such as the desalination efficiency needs to be further improved, and the self-regeneration time of the electrode is relatively long, generally accounting for one-third of the entire cycle, which affects the water production rate

[0015] At present, the existing methods for treating inorganic salts in iron and steel industry wastewater have problems such as large equipment footprint, frequent and complicated system operation and maintenance, low impact resistance, easy damage to equipment, low desalination efficiency, and secondary pollution.

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