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Anaerobic ammonia oxidation test device and method for biological denitrification treatment for waste water

A biological denitrification and waste water technology, applied in the direction of anaerobic digestion treatment, etc., can solve problems such as difficulty in maintaining anaerobic conditions, poor inlet and drainage, easy leakage of air bags, etc., achieve effective sludge retention capacity, and facilitate operation and control , Easy to operate and control the effect

Inactive Publication Date: 2007-07-25
CHONGQING TECH & BUSINESS UNIV
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Problems solved by technology

This type of device has the disadvantages of complex structure, difficult operation, and high cost.
For example, the air bag is easy to leak and needs to be replenished frequently, and it is extremely inconvenient to exhaust after the system successfully produces gas, and the wet gas flow meter cannot balance the air pressure of the device, making the inlet and outlet difficult; especially the device is poorly sealed. It is difficult to maintain strict anaerobic conditions, which will inhibit the activity of anammox bacteria and easily lead to test failure

Method used

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  • Anaerobic ammonia oxidation test device and method for biological denitrification treatment for waste water

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Embodiment Construction

[0022] The technology of the present invention is further described below in conjunction with Fig. 1:

[0023] The anammox test device is shown in Fig. 1, which is mainly composed of an anammox reactor 1 (reactor for short), a converter 2 and a water bath 7. Both the reactor 1 and the converter 2 are airtight containers, the whole is submerged below the water surface in the water bath 7 and fixed at the bottom of the water bath 7 . An air duct 8 and a draft duct 9 are arranged on the top of the reactor 1 , and the reactor 1 is equipped with activated sludge and an underwater agitator 6 . The top of the converter 2 communicates with the top of the reactor 1 through the air duct 8, the top of the converter 2 is provided with a temporary air guide hole 4, and the lower part of the converter side is provided with an air guide hole 3 and directly communicates with the water bath. Running water is arranged in the water bathtub 7, and the water level is higher than the reactor 1, th...

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Abstract

The anaerobic ammonia oxidizing test device for biologically denitrifying waste water consists of anaerobic ammonia oxidizing reactor, converter and water bath. Both the reactor and the converter are sealed container immersed in the water bath; the reactor has gas pipe and flow guide pipe in the top, active sludge inside it and underwater stirrer; the converter has temporary gas guide hole and gas pipe, which is connected to that of the reactor, in the top, scales on side wall, gas guide hole connected to the water bath in the lower part; and the water bath is maintained in constant temperature and has water surface higher than the top of both the reactor and the converter. The present invention has simple structure, good sealing effect, condition suitable for anaerobic ammonia oxidizing bacteria to grow, easy operation and high in sludge intercepting capacity.

Description

technical field [0001] The invention belongs to the field of waste water treatment, and relates to the technology of using microorganisms to treat high-concentration nitrogen-containing waste water, in particular to a method for carrying out biological denitrification treatment on waste water by using an anaerobic ammonium oxidation test device. Background technique [0002] Due to insufficient denitrification carbon sources and other reasons, the biological denitrification treatment of high-concentration nitrogen-containing wastewater has always been a difficult point in wastewater treatment. Nitrogen treatment found a breakthrough. Anaerobic ammonium oxidation phenomenon is the biological denitrification process of anaerobic ammonium oxidation microorganisms under anaerobic conditions with ammonia nitrogen as the electron donor and nitrite as the electron acceptor. It can be used to solve the traditional nitrification / denitrification biological denitrification process in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28
Inventor 魏琛傅敏余纯丽宁丰收
Owner CHONGQING TECH & BUSINESS UNIV
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