Aerobic denitrification reactor with mycelium pellet as carrier and method for synchronous operation of nitrification and denitrification

Abstract

The invention provides an aerobic denitrification reactor with a mycelium pellet as a carrier, which relates to the technical field of water treatment. The aerobic denitrification reactor comprises an enclosed reactor. An aeration head is arranged at the bottom the enclosed reactor; a water inlet pipe and a water outlet pipe are respectively arranged on an upper side surface and on a lower side surface of the enclosed reactor; a biomass carrier is provided in the enclosed reactor and is composed of mycelium pellets; a biofilm composed of aerobic denitrifying bacteria is formed on the mycelium pellets. The reactor provided by the invention enables nitrobacteria and aerobic denitrifying bacteria to well grow and propagate under the condition of a whole aerobic cycle and achieves a stable effect of synchronous nitrification and denitrification; the reactor utilizes the mycelium pellets as a carrier to overcome the problem of a short stable operation period of a whole system caused by considerable loss of the aerobic denitrifying bacteria since the aerobic denitrifying bacteria have weak competitiveness in the system and are difficult to form a dominant bacterial community, thus playing a crucial role in long-term stable operation of the whole reactor system.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a water treatment reactor using mycelium balls as a carrier and an operation method thereof for realizing synchronous nitrification and denitrification through an aerobic denitrification technology. Background technique [0002] In the 21st century, the global water resource crisis has brought huge troubles to human society. As a developing country, water pollution control has become one of the main goals of strengthening water resource protection in my country. The 2009 "China Environmental Status Bulletin" pointed out that China's surface water pollution is relatively serious, the seven major water systems are generally slightly polluted, and problems such as eutrophication of lakes are prominent. The accumulation of various forms of nitrogen such as nitrate nitrogen produced by a large amount of chemical fertilizers and ammonia nitrogen in concentrated urban domestic s...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned shortcomings, the present invention provides an aerobic denitrification reactor using mycelium balls as a carrier. Oxygen denitrifying bacteria have weak competitiveness in the system, and it is difficult to form a dominant bacterial group, resulting in a large loss of them, resulting in a short stable operation period of the entire system, which plays a key role in the long-term stable operation of the entire reactor system

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