Anaerobic ammonia oxidation denitrification and phosphorus removal system and method

Abstract

The invention provides an anaerobic ammonium oxidation denitrification and phosphorus removal system. The system comprises an integrated structure consisting of an independent anaerobic unit and an independent aerobic unit, backflow equipment communicating with a second water outlet pipe, and an aerobic blower respectively being connected with a stirring equipment and an oxygen charging equipment,wherein the inside of the anaerobic unit is provided with the stirring equipment and first mud water separating equipment, the upper portion of the anaerobic unit is provided with a first water inlet, the first mud water separation equipment is provided with a first outlet pipe communicating with the aerobic unit, the inside of the aerobic unit is provided with the oxygen charging equipment and second mud water separating equipment, the upper portion of the aerobic unit is provided with a second water inlet, the second mud water separating equipment is provided with a second water outlet pipe, the backflow equipment is provided with an external discharge water outlet and a backflow water outlet, and the backflow water outlet communicates with the first water inlet. Sustainability and energy-saving of biological denitrification and phosphorus removal can be realized by adopting the provided anaerobic ammonium oxidation denitrification and phosphorus removal system, the total nitrogen removal effect is excellent, and water quality of an outlet water has good stability.

Description

technical field [0001] The invention relates to the technical field of water treatment, and more specifically relates to an anaerobic ammonium oxidation denitrification and dephosphorization system and method. Background technique [0002] With the increasingly serious situation of water resource pollution, the discharge standards for denitrification and phosphorus removal are becoming stricter and tighter, the treatment costs of sewage treatment plants have risen sharply, and the pressure on operating costs has risen sharply. However, the national discharge standards for sewage effluent quality are still improving. Enterprises in the industry are all facing the bottleneck breakthrough that needs to be upgraded in sewage treatment technology. In particular, some special wastewater that restricts enterprises from adopting low operating costs cannot directly adopt biological treatment technology, which greatly increases the production cost of enterprises. Therefore, the marke...

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Problems solved by technology

[0004] However, the anaerobic ammonium oxidation process in the prior art is limited by the treatment device, and there are problems such as the difficulty in controlling the stable production of the electron acceptor nitrite nitrogen required for anaerobic ammonium oxidation and the difficulty in continuous accumulation. The problem of enrichment and separation, therefore, the removal effect of total nitrogen is average, and the stability of effluent water quality is poor

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