Method for treating seawater-containing sewage through marine anaerobic ammonium oxidation bacteria

Abstract

The invention belongs to the technical field of biological treatment of sewage, and relates to a method for treating seawater-containing sewage through ocean anaerobic ammonium oxidation bacteria. The method comprises the following steps: extracting sludge from marine sediment for elutriation, enriching and cultivating the marine anaerobic ammonium oxidation bacteria in the sludge through ammonia nitrogen and nitrite nitrogen-containing seawater, then introducing the seawater-containing sewage into a reactor enriched with the marine anaerobic ammonium oxidation bacteria, and transforming ammonia nitrogen serving as an electron donor and nitrite nitrogen serving as an electron acceptor into nitrogen through the marine anaerobic ammonium oxidation bacteria, and discharging the nitrogen out of the reactor, thus realizing denitration treatment of the seawater-containing sewage. The whole technological process is simple, the operation and the control are flexible, efficient denitration of the seawater-containing sewage can be realized, energy and materials are saved, the production cost is low, economical benefit is high, and the method is convenient for popularization and application.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of sewage biological treatment, and relates to a biological treatment process technology for sewage containing seawater, in particular to a method for treating sewage containing seawater by marine anaerobic ammonium oxidizing bacteria. Background technique [0003] The shortage of water resources has become a worldwide crisis. At present, more than 100 countries in the world are short of water, and my country is also a country with relatively poor fresh water resources. Due to the acceleration of urbanization and the rapid development of the economy, the city's water demand has grown at an alarming rate. The contradiction between water supply and demand has become a bottleneck restricting the development of industry and agriculture in many places in my country, especially in China's economically developed coastal areas. There is a serious water shortage. crisis. The development of seawater resources ...

AI Technical Summary

Problems solved by technology

The direct use of seawater is mainly manifested in industrial cooling water, industrial production water, and urban domestic water. Although the use of seawater has significant social and economic benefits, no matter where the seawater is used, it will eventually be discharged into urban sewage Treatment system, the resulting seawater sewage, due to its high concentration of salt, will cause rapid changes in the osmotic pressure of microbial cells, resulting in bacterial cell rupture or inhibiting bacterial growth, which will damage the biological treatment system

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