A method for controlling short-range nitrification using combined inhibitors

Abstract

The invention belongs to the technical field of sewage treatment methods, and specifically relates to a method for controlling short-range nitrification by using combined inhibitors. In a SBR or MBBR with stable operation, formic acid, hydrazine, and hydrazine are repeatedly added in the form of formic acid, hydrazine, and other conditions remain unchanged. , to achieve short-cut nitrification stably. The nitrosation rate of the method provided by the invention is above 92%, and the removal rate of ammonia nitrogen is above 98%.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment methods, and in particular relates to a method for controlling short-range nitrification by using combined inhibitors. Background technique [0002] With the rapid development of my country's economy and technology, the shortage of water resources and the pollution of water environment have become increasingly prominent. The problem of water pollution has become one of the most important restrictive factors for my country's economic and social development, and the problem of ammonia nitrogen pollution is the top priority, which has attracted great attention from the national and local governments. [0003] Short-cut nitrification and denitrification denitrification process is a new type of biological denitrification technology that has just been developed in recent years. This technology has less sludge production, is compact and efficient, and saves energy consumption, and has been more ...

AI Technical Summary

Problems solved by technology

At present, most of the methods used to realize short-range nitrification are to control parameters such as dissolved oxygen and pH. The reaction rate is low, and short-range nitrification is unstable, which affects the popularization and application of short-range nitrification.

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