Tail end denitrification process device and denitrification method for Lake biogas digester

Abstract

The invention discloses a tail-end denitrification process device for a biogas digester and a denitrification method of the tail-end denitrification process device, relates to the technical field of biogas digesters, and aims to solve the problems of high operating cost and low denitrification efficiency caused by high adaptability, high energy consumption, high resin consumption and difficulty in regeneration when an ion exchange method is used in the conventional denitrification process in use. A premixing pool is installed on one side of the biogas digester, a curing pool is arranged on one side of the premixing pool, aeration equipment is arranged at one end of the premixing pool, a PLC remote controller is installed at one end of the aeration equipment, a premixing pool discharge pipe is arranged on one side of the curing pool, and a pressure gauge is installed on the outer side of the biogas digester. A pressure gauge is arranged on the upper portion of the biogas digester, the pressure gauge is connected with the outer side of the biogas digester in a welded mode, a turning cover is arranged above the biogas digester, a pressing sensor is installed above the turning cover, and the pressing sensor and the upper portion of the turning cover are integrally formed.

Description

technical field [0001] The invention relates to the technical field of covered lagoon biogas digesters, in particular to a device for denitrification at the end of a covered lagoon biogas digester and a denitrification method thereof. Background technique [0002] The current characteristics of pig farm manure: high COD, NH3-N, SS, large fluctuations in manure discharge and discharge concentration, large-volume fermentation in the lagoon biogas digester, and the theory of exchanging space for time, the pollutant removal rate can reach More than 80%, the C:N ratio of the terminal effluent is out of balance, which will put pressure on the subsequent biochemical process, the effect of nitrification and denitrification is not good, and it is difficult to meet the required standards. Therefore, it is particularly important to denitrify at the end of the lagoon biogas digester. Common traditional denitrification process: ammonia stripping method, although the process is simple and...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a denitrification process device and a denitrification method at the end of a covered lagoon biogas tank to solve the problem that the existing traditional denitrification process proposed in the above background technology has strong adaptability, but consumes a lot of energy. , when the ion exchange method is used, the amount of resin is large and regeneration is difficult, resulting in high operating costs and low denitrification efficiency

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