Automatic efficient purification system for total nitrogen of water and method of automatic efficient purification system

A purification system and water body technology, applied in chemical instruments and methods, water treatment parameter control, biological water/sewage treatment, etc., can solve the problems of large investment in sewage treatment methods, poor process flexibility, and high operating costs, and achieve improved denitrification Effect, low operating cost, and improved hydraulic conditions
CN109250822AActive Publication Date: 2019-01-22HOHAI UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HOHAI UNIV
Publication Date
2019-01-22

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Abstract

The invention discloses an automatic efficient purification system for total nitrogen of water and a method of the automatic efficient purification system. The system comprises a purification system (1), a modification system (2), a total nitrogen detection system (3) and a denitrification system (4), wherein the purification system (1), the total nitrogen detection system (3) and the denitrification system (4) are sequentially connected, and the modification system (2) is connected to the purification system (1); the purification system (1) is used for supplying oxygen to microbes on a biochar matrix by using plant root system action and improving nitrification. The modification system (2) is used for carrying out aeration modification on the biochar matrix (1-2) through an aeration pump(2-1), so as to improve the microbial activity of the biochar matrix (1-2). The total nitrogen detection system (3) is used for monitoring total nitrogen in water, and the denitrification system (4) is started up to perform refluxing when the total nitrogen exceeds a set standard value, so as to improve hydraulic conditions and improve a denitrification effect. The system and the method are high in denitrification efficiency, good in treatment effect, small in investment and low in operating cost, biochar is subjected to resource-converting utilization, and in-situ purification does not need afloor area.
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Description

technical field

[0001] The invention belongs to the fields of environmental protection and water body restoration, and in particular relates to an automatic and high-efficiency purification method for total nitrogen in water bodies. Background technique

[0002] Total nitrogen is generally considered to be the sum of nitrate nitrogen, nitrite nitrogen, ammonia nitrogen and organic nitrogen. The ammonia nitrogen in the water body generates nitrate under the action of oxygen, and further forms nitrate. At the same time, the nitrite and nitrate in the water body are transformed into nitrogen gas by microorganisms under anoxic conditions. Total nitrogen reflects the main indicator of eutrophication in water bodies. Among them, the "Surface Water Environmental Index Standard" (GB3838-2002) clearly pointed out that the standard of Class III is 1.0 mg / L, the standard of Class IV is 1.5 mg / L, and the standard of Class V is 2.0 mg / L; Ammonia nitrogen pollution is dominant, and orga...

Claims

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