Nitrating aeration biological filting tank of oyster shell filling

An aerated biological filter and oyster shell technology, which is applied in the field of nitrification aerated biological filter, can solve the problems of low operating cost and high ammonia nitrogen removal rate

Inactive Publication Date: 2007-08-15
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] The purpose of the present invention is to solve the problem that alkalinity reagent needs to be supplemented in the operation of the existing traditional packing nitrification biological

Method used

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  • Nitrating aeration biological filting tank of oyster shell filling
  • Nitrating aeration biological filting tank of oyster shell filling
  • Nitrating aeration biological filting tank of oyster shell filling

Examples

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Embodiment Construction

[0022] The following embodiments will further describe the present invention in conjunction with the accompanying drawings.

[0023] As shown in Fig. 1-4, the present invention is provided with tank body 10, oyster shell filler 9, support plate 5, water distribution and air distribution device, water outlet and backwash device. The supporting plate 5 is set in the lower part of the pool body 10, and dozens of through holes are set on the supporting plate 5, and the oyster shell filler 9 is filled on the supporting plate 5 in the pool body 10, and the water and air distribution devices are arranged on the supporting plate 5. Below the supporting plate 5, the water and air distribution device is provided with a water distribution pipe 4, an air distribution pipe 6, and a water and air distribution chamber 11, and the water distribution pipe 4 and the air distribution pipe 6 are arranged in the water and air distribution chamber under the supporting plate 5 11; the water distribu...

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Abstract

A nitrifying and aerating biologic filtering pool with oyster shells as filler for denitrifying sewage is composed of pool body, bearing plate with at least one hole, oyster shells on said bearing plate, water and air distributing unit under said bearing plate, the water discharging and back flushing unit consisting of water distributing tube, air distributing tube and water and air distributing chamber, and external aerator.

Description

technical field [0001] The invention relates to a biological filter for denitrification of sewage, in particular to a nitrification aerated biological filter using oyster shell filler. Background technique [0002] Existing methods for removing nitrogen from sewage include physical, chemical and biochemical methods. The biochemical denitrification process has been widely used because of its high ammonia nitrogen removal rate, less secondary pollution, and low operating costs. [0003] The biochemical method includes three reaction processes: ammonification reaction, nitrification reaction, and denitrification reaction. Nitrogen mainly exists in the form of ammoniacal nitrogen in the effluent of the secondary treatment of urban sewage, while the tertiary treatment requires a denitrification process mainly including nitrification. In addition, wastewater from many industries such as iron and steel, oil refining, chemical fertilizers, inorganic chemicals, ferroalloys, glass m...

Claims

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Application Information

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IPC IPC(8): C02F3/10
CPCY02W10/10
Inventor 熊小京叶志隆芦敏欧阳通
Owner XIAMEN UNIV
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