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Treatment and reuse of toilet wastewater by an airlift external circulation membrane bioreactor

Paper ID Volume ID Publish Year Pages File Format Full-Text
36348 45129 2006 7 PDF Available
Title
Treatment and reuse of toilet wastewater by an airlift external circulation membrane bioreactor
Abstract

Membrane bioreactor (MBR) is a high efficient technology for toilet wastewater treatment and reuse. Practical performance of a full-scale airlift external circulation membrane bioreactor (AEC-MBR) for toilet wastewater treatment was investigated. The results showed that the removals of COD, BOD5, NH4-N, color and turbidity were 90%, 99%, 95%, 80% and 99.7%, respectively, with the average effluent quality of COD 24 mg/L, BOD5 2.4 mg/L, NH4-N 5 mg/L, color 30° and turbidity 0.2 NTU. Abundant microorganisms could live well and play an important role in sludge health and in well performance of the MBR, because without circulation pump in the system. The maximum flux was maintained stably at 13.5 L/m2 on the TMP at 4–9 kPa for more than 5 months. The energy consumption of the AEC-MBR system was at 0.32–0.64 kWh m−3 and the operational cost was about $ 0.11/m3. More than 15 sets of AEC-MBR systems were applied successfully for toilet wastewater treatment and reuse in China in recent years.

Keywords
Toilet wastewater treatment; Membrane bioreactor (MBR); Removal efficiency; Low energy consumption; Water reuse
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Treatment and reuse of toilet wastewater by an airlift external circulation membrane bioreactor
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 41, Issue 6, June 2006, Pages 1364–1370
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us