Publication:
A two-phase anaerobic digestion process (uasb-uasb): Induced failure and system recovery using a step loading reduction approach and modified recycle ratio (RR)

Issued Date

1995-02-01

Resource Type

Article

ISSN

1479487X
09593330

DOI

10.1080/09593331608616254

Other identifier(s)

2-s2.0-0028871254

Rights

Mahidol University

Rights Holder(s)

SCOPUS

Bibliographic Citation

Environmental Technology (United Kingdom). Vol.16, No.2 (1995), 137-146

Suggested Citation

P. Fongsatitkul, D. S. Mavinic, K. V. Lo A two-phase anaerobic digestion process (uasb-uasb): Induced failure and system recovery using a step loading reduction approach and modified recycle ratio (RR). Environmental Technology (United Kingdom). Vol.16, No.2 (1995), 137-146. doi:10.1080/09593331608616254 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/17283

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Title

A two-phase anaerobic digestion process (uasb-uasb): Induced failure and system recovery using a step loading reduction approach and modified recycle ratio (RR)

Author(s)

P. Fongsatitkul
 D. S. Mavinic
 K. V. Lo

Other Contributor(s)

Mahidol University
 The University of British Columbia

Abstract

This research demonstrated the feasibility of recovery of a UASB-UASB system treating simulated sewage sludge, after operating in a deliberate failure mode. The approach employed an application of step-loading reduction and a modification of the internal recycle ratio (RR). The system recovered exponentially (r2= 0.99) and logarithmically (r2= 0.81), with an increase in HRT (loading reduction), in so far as COD (sol) removal efficiency (92%) and CH4gas production (100%), were concerned. The system appeared to return to its initial stage of operation, after 43 days of recovery period, by the application of a two-step increase in the HRTM-UASBat 1-5 and 5.5 times that of the failure HRTM-UASB(0.63 days); coincidentally, a dimensional time of 5.5 and 10 times the minimum HRT was employed for the overall system and the M-UASB, respectively. © Publications Division Selper Ltd., 1995.

Keyword(s)

Environmental Science

Availability

URI

https://repository.li.mahidol.ac.th/handle/20.500.14594/17283

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Scopus 1991-2000