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.
CN1232454CInactive Publication Date: 2005-12-21JIANGNAN UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGNAN UNIV
Publication Date
2005-12-21
Estimated Expiration
Not applicable Β· inactive patent

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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.
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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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