Membrane biologic reaction equipment and processing method for processing industrial waste water with high ammoniac nitrogen

A membrane biological reaction and high-ammonia-nitrogen industry technology is applied to membrane bioreactors and treatment fields for high-ammonia-nitrogen industrial wastewater treatment, which can solve the problems of high energy consumption, insignificant effect, accumulation of nitrite, etc., and achieves simple operation and maintenance, The effect of remarkable treatment effect and high denitrification effect

Inactive Publication Date: 2009-10-07
TIANJIN MOTIAN MEMBRANE ENG & TECH
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Problems solved by technology

These processes have a better treatment effect on domestic wastewater or industrial wastewater with a low ammonia nitrogen content, but the effect on production wastewater with a high concentration and large fluctuations such as 300-700mg / L ammonia nitrogen content is often not significant, and the energy consumption is high. Nitrate accumulation and other problems

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  • Membrane biologic reaction equipment and processing method for processing industrial waste water with high ammoniac nitrogen

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Embodiment

[0040] According to figure 1 , Take the MSG wastewater treatment example to illustrate the process flow and system equipment of the present invention.

[0041] Such as figure 1 As shown, the main components of the wastewater treatment of the present invention include an anaerobic effluent tank 100, an anoxic tank 2, a first-stage aerobic tank 3, a second-stage aerobic tank 4, and a membrane tank 5 which are connected in sequence in liquid communication, wherein the anaerobic effluent tank 100 It is in liquid communication with the anoxic tank 2 through the pipeline 80, the bottom of the anoxic tank 2 is connected to the bottoms of the tanks 3 and 4, and the mixed liquid of the tank 4 overflows to the tank 5, so the sludge and the treated liquid can flow Go to the next processing device.

[0042] MSG wastewater undergoes a common anaerobic (UASB) process, and the COD value of the wastewater is reduced from 4000-5000mg / L to 300-1000mg / L. When the anaerobic effluent fluctuates greatl...

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Abstract

The invention provides membrane biologic reaction equipment and a processing method for processing industrial waste water with high ammoniac nitrogen. In the processing equipment, an anaerobic water outlet pool (100), an oxygen-poor pool (2), a first-section aerobian pool (3), a second-section aerobian pool (4) and a membrane pool (5) are connected according to the circulation sequence of fluid, wherein immersion type unitization hollow fibre membrane filtration equipment is arranged in the membrane pool for carrying out solid and liquid separation of processing liquid. The equipment adopts a control mode combining manual control and automatic control, and the operation and the maintenance are simple. A biochemical system has a flexible running mode with adjustable oxygen-poor and aerobian time, adjustable dirt return quantity, adjustable return modes, and the like so as to adapt to the change condition of the produced waste water and ensure high processing efficiency.

Description

Technical field [0001] The invention relates to a membrane biological processor and a treatment method, in particular to a membrane biological reactor and a treatment method for the treatment of high ammonia nitrogen industrial wastewater. Background technique [0002] Ammonia nitrogen and COD (chemical oxygen demand, Chemical oxygen demand) are the two most important indicators of sewage discharge, and they are also important indicators to measure the effectiveness of sewage treatment or whether it can be reused. In most of the reuse standards and emission standards, these two The indicators are strictly regulated. MSG and fermentation industry wastewater are characterized by high ammonia nitrogen and high COD. The current treatment methods are mainly activated sludge methods, including the following processes, (1) A2 / O (anaerobic + hypoxia) + Aerobic) method, (2) A+SBR (anaerobic + sequential batch activated sludge method), (3) A+O+ delayed aeration method. The biggest disadvan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F1/44
Inventor 戴海平丁维赵学辉范云双周阳
Owner TIANJIN MOTIAN MEMBRANE ENG & TECH
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