Anaerobic fluidized bed bioreactor and using method thereof

An anaerobic fluidized bed and bioreactor technology, applied in anaerobic digestion treatment, waste fuel and other directions, can solve the problems of long treatment time and large area, and achieve the effect of improving treatment efficiency

Inactive Publication Date: 2014-03-26
TIANJIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0012] The purpose of the invention of this application is to overcome the shortcomings of the existing anaerobic fluidized bed, which occupy a large area and take a long time to process, and provide an anaerobic fluidized bed bioreactor and its use method

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  • Anaerobic fluidized bed bioreactor and using method thereof

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Embodiment Construction

[0044] Such as figure 1 As shown, the anaerobic fluidized bed bioreactor of the present invention includes a bed body, a head 21, a separator 7, a peristaltic pump 12, and a centrifugal pump 11. The bed body consists of a straight pipe 22, a reducing pipe 15 and a top pipe 19. The top tube 19 is above the straight tube 22, the reducing tube 15 is connected between the top tube 19 and the straight tube 22, the straight tube 22, the reducing tube 15 and the top tube 19 are connected together, and the head 21 passes through the method The flange 20 is installed on the top pipe 19, and the head 21 is provided with a methane mixed gas outlet 3, a nitrogen inlet 4 and an air outlet 5. The methane mixed gas outlet 3 communicates with the gas cylinder 1 through a pipe. A wet gas flow meter 2 is installed on it. The top pipe 19 is connected to the separator 7 through the connecting pipe 6. The bottom of the separator 7 is provided with a circulating liquid port 9 and a waste sludge dis...

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Abstract

The invention relates to a method for anaerobic reaction by using an anaerobic fluidized bed bioreactor. The method includes: (A) inoculating an anaerobic sludge liquid; (B) adding waste water prepared by human, growing an anaerobic bacterium biological membrane on zeolite particles; and (C) adding high concentration industrial waste water or residual sludge mud from town sewage treatment factories for anaerobic digestion. In the inventive method, the zeolite particles with smaller volume are used as biological carriers, the bacterium biological membrane is adhered to the particles, a mass transfer efficiency between the industrial waste water and the residual sludge and the bacterium biological membrane is improved by using the huge specific surface of the small particles. The method for anaerobic reaction by using the anaerobic fluidized bed bioreactor has higher treatment capacity, after stable running, an average volume load can reach 30-35KgCOD/m<3>.d, the mass transfer efficiency between the industrial waste water and the residual sludge and the bacterium biological membrane is improved, the advantages of a fluidized bed technology are fully utilized, so that the treatment efficiency of the industrial waste water and the residual sludge of a sewage plant is greatly improved.

Description

Technical field [0001] The invention relates to an anaerobic fluidized bed bioreactor and a method of use thereof, in particular to an anaerobic fluidized bed bioreactor for treating industrial wastewater and residual sludge of an urban sewage treatment plant and a method of use thereof. Background technique [0002] The anaerobic treatment of industrial wastewater is suitable for the treatment of industrial wastewater with high COD concentration (such as food wastewater and fermentation wastewater) and residual sludge from sewage plants. Compared with aerobic processes, it has the following advantages: 1) Low biosolid production. In aerobic treatment, more than half of the wastewater BOD is converted into cellular material, which becomes surplus sludge and requires further treatment and the treatment cost is high. In anaerobic treatment, only 5%-15% of BOD is used for cell synthesis, which significantly reduces the burden of subsequent treatment. 2) Less nutritional requirement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28
CPCY02E50/30
Inventor 张爱群祝京旭
Owner TIANJIN UNIV OF SCI & TECH
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