Coupled A[2]O suspended filler process and cloth media filter integrated nitrogen and phosphorus removal device and method

A suspension packing, nitrogen and phosphorus removal technology, applied in chemical instruments and methods, aerobic and anaerobic process treatment, water/sewage multi-stage treatment, etc., can solve the problem of slow doubling rate of Anammox bacteria

Active Publication Date: 2013-12-11
TSINGHUA UNIV +3
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Problems solved by technology

However, since the doubling rate of Anammox bacteria is very slow, effectively keeping it in the reactor is the key to practical application

Method used

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  • Coupled A[2]O suspended filler process and cloth media filter integrated nitrogen and phosphorus removal device and method

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Embodiment Construction

[0039] The present invention is as attached figure 1 The device diagram shown is implemented.

[0040] The raw water tank 1 has a volume of 120L, and is connected to the water inlet pump 2, the water inlet flowmeter 3 and the water inlet valve 4 in sequence along the water inlet direction through pipelines. The water inlet valve 4 is located on the upper part of the water inlet side of the main body 5 of the device. The main body of the device 5 is divided into 4 areas through the partition plate. The effective water volume of the main body 5 of the device is 80L, which is divided into 4 areas. The anaerobic area A is in sequence along the water flow direction. (10L), anoxic zone B (20L), aerobic zone C (40L), precipitation zone D (10L). The suspended filler 8 filled in the aerobic zone C is a hollow ring with a filling rate of 30%, made of polyethylene, with a diameter of 20mm and a density of 0.96g / cm 3 , The porosity is 96%.

[0041] A pusher 6 is set in the anaerobic zo...

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Abstract

The invention relates to a biological sewage treatment device and a biological sewage treatment method and particularly relates to a coupled A[2]O suspended filler process and cloth media filter integrated nitrogen and phosphorus removal device and method. According to the invention, a traditional A[2]O process is improved and combined with a biological membrane process and a cloth media filter technology into an integrated device, anaerobic / anoxia alternant activated sludge and a biological membrane are separated in space, the problem of contradiction of biological removal of nitrogen and dephosphorization on sludge age is solved, the denitrifying phosphorus removal and anaerobic ammonia oxidation denitrification can be achieved through controlling the operating parameters, and the device and the method are efficient, economical, simple and sanitary and is applicable to the on-site processing of dispersing type domestic wastewater.

Description

technical field [0001] The invention relates to a sewage biological treatment device and method, in particular to an A 2 O Suspended filler process coupling filter cloth filtration integrated nitrogen and phosphorus removal device and method. to traditional A 2 The improvement of O process can solve the contradiction between biological denitrification and phosphorus removal in terms of sludge age. By controlling the operating parameters, denitrification phosphorus removal and anaerobic ammonium oxidation denitrification can be realized, which is efficient, economical, simple and hygienic. Background technique [0002] Dense population and rapid economic development have given birth to a centralized urban sewage treatment model. In recent years, my country's urban sewage treatment has developed rapidly. At present, it has basically realized the coverage of more than 600 large and medium-sized cities across the country, showing a trend of saturation. However, for areas that...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/30
Inventor 侯锋邵彦青薛晓飞龚灵潇彭永臻
Owner TSINGHUA UNIV
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