Device for treating high-concentration ammonia nitrogen in petroleum wastewater by using surface activity catalyst

Abstract

The invention relates to a device for treating high-concentration ammonia nitrogen in petroleum wastewater by using a surface activity catalyst, belonging to the field of sewage treatment. The device consists of a liquid box (1), a liquid inlet tube (2), a pipeline mixer (3), a filtering net (4), a stirrer (5), blades (6), an aerator (7), an air flowmeter (8), a water passing pipe (9), a nozzle (10), a heavy metal catalyst net (11), a denitrification reactor (12), a liquid outlet (13), a lifting pump (14), an air distribution tube (15) and an aeration area (16). The surface activity catalyst in the liquid box is practical and efficient in denitrification reaction, the removal rate of ammonia nitrogen is effectively increased, the remove rate of ammonia nitrogen in wastewater which is treated by using the device provided by the invention is increased to be greater than 99.9% from the conventional 67.8-82.4%, and meanwhile the production cost of the device is saved, the operation is convenient and feasible, the problem of secondary pollution is avoided, and the pollution of petroleum sewage to the environment is reduced.

Description

technical field [0001] The invention discloses a device for treating high-concentration ammonia nitrogen in petroleum wastewater with a surface active catalyst, belonging to the field of sewage treatment. Background technique [0002] As long as the wastewater in the petrochemical industry is composed of wastewater containing various inorganic substances produced in the process of oil extraction and refining, which contains pollutants such as oil, ammonia, salt and phenol, the composition is very complex, the discharge volume is large, and the treatment is difficult. It wastes resources and pollutes the environment, causing great harm to water bodies. With the increasing shortage of water resources and the strengthening of people's awareness of environmental protection, the treatment technology of petrochemical wastewater has gradually become a research hotspot. [0003] At present, it is possible to convert high-concentration ammonia-nitrogen in wastewater into nitrogen by...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of high operating cost, secondary pollution and low ammonia nitrogen removal rate in the existing technical solutions, and provides a surface active catalyst for treating high-concentration ammonia nitrogen in petroleum wastewater, which solves the problem of large pollution in the prior art. High cost and low removal rate of ammonia nitrogen

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