Intermediate water reusing technology for treating domestic sewage by a combined system of expanding granular mud-bed anaerobic reactor-aerobic membrane biological reactor

A technology of expanded granular sludge and anaerobic reactor, which is applied in the direction of aerobic and anaerobic process treatment, and can solve the problems of sludge treatment technology and cost of sewage treatment plants, etc.

Inactive Publication Date: 2005-12-21
JIANGNAN UNIV
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  • Abstract
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Problems solved by technology

[0007] The current various activated sludge methods inevitably discharge excess sludge, and the treatment technology and cost of a large amount of sludge have always been a problem for sewage treatment plants

Method used

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  • Intermediate water reusing technology for treating domestic sewage by a combined system of expanding granular mud-bed anaerobic reactor-aerobic membrane biological reactor
  • Intermediate water reusing technology for treating domestic sewage by a combined system of expanding granular mud-bed anaerobic reactor-aerobic membrane biological reactor
  • Intermediate water reusing technology for treating domestic sewage by a combined system of expanding granular mud-bed anaerobic reactor-aerobic membrane biological reactor

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Embodiment 1

[0068] Operate according to the main equipment and technological process described in the manual, use the EGSB-MBR combined system to treat domestic sewage, and the COD concentration of the influent is 300-400mgL -1 , control the COD concentration of EGSB effluent to 150-200mgL -1 , MBR effluent COD concentration is about 10mg L -1 . The concentration of NH3-N in the whole system is about 30mg L -1 , effluent NH 3 -N concentration is stable below 5mg L -1 , SS is 0 mg L -1 , the turbidity of the effluent is close to 0NUT, and the chromaticity of the effluent is stable below 20 times.

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Abstract

Disclosed is a reclaimed water reuse technology for domestic sewage treatment by an expanded granular sludge bed anaerobic reactor-aerobic membrane bioreactor combined system, which relates to domestic sewage treatment and sludge reduction technologies. The present invention is characterized in that the expanded granular sludge bed anaerobic reactor - the aerobic membrane bioreactor is combined into a treatment system to treat low-concentration domestic sewage, and the EGSB anaerobic reactor efficiently degrades organic matter in domestic sewage, and the The time is short and the volumetric organic load is high; the MBR reactor completely removes the remaining organic matter and ammonia nitrogen, and the quality of the effluent water can reach the standard for reclaimed water reuse. The EGSB-MBR combination system of the invention can effectively reduce the volume of the reaction system when treating domestic sewage, and the sludge output in the treatment process is low, and the good effluent quality has the value of reuse.

Description

technical field [0001] The invention discloses a reclaimed water reuse technology for domestic sewage treatment by an expanded granular sludge bed anaerobic reactor-aerobic membrane bioreactor combined system, which relates to domestic sewage treatment and sludge reduction technology. Background technique [0002] With the rapid expansion of urban population, the total amount of urban domestic sewage is increasing rapidly, and domestic sewage has become an important source of pollution. For cities that lack water resources, urban wastewater is also a valuable asset. Many countries in the world are actively using urban sewage and developing reclaimed water reuse systems suitable for their national conditions. Urban sewage reuse and reclaimed water system can be used as a supplementary water source for urban tap water, which is widely supplied to factories, enterprises and residential quarters for flushing toilets and miscellaneous uses. The purpose of developing and utilizing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30
Inventor 陈坚堵国成杨云军伦世仪
Owner JIANGNAN UNIV
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