Sample characterization and determination of anaerobic biodegradability of sludges drawn from biosorption plants located at Jurong WRP and at Ulu Pandan WRP (Final report)

Ng, Wun Jern and Trzcinski, Antoine P. and Ganda, Lily (2015) Sample characterization and determination of anaerobic biodegradability of sludges drawn from biosorption plants located at Jurong WRP and at Ulu Pandan WRP (Final report). Project Report. Unpublished . [Report]

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Abstract

Concerns on global warming and energy costs call for more effective approaches to improve the energy self-sufficiency of large centralized wastewater treatment plants (WWTPs). One such approach is to recover the potential energy available in raw municipal wastewaters. A two-stage process, the AB process, has been suggested for energy-efficient WWTPs. The first stage is a highly loaded biosorption stage (A-stage), and this is followed by a low loaded biological stage (B-stage) ensuring removal of dissolved organics and ammonia. The entrapped organics (energy) in the A-stage could be recovered through biogas generation with the anaerobic digester. This project therefore aims to evaluate the feasibility of the biosorption method as primary step (the A-stage’s mechanism) in the treatment of municipal wastewaters in Singapore. The scope of this research project includes (1) determination of solids content, COD concentration, and calorific value of sludge samples from pilot-plants located in Jurong and Ulu Pandan WRPs, (2) conducting biochemical methane potential (BMP) assay on the sludge samples, and (3) characterization of centrate of the BMP reactors. The BMP assay was performed to determine anaerobic biodegradability of the sorption-enhanced primary sludge (the A-stage’s sludge) in comparison with the conventional activated sludge (the B-stage’s sludge). The results would then serve as preliminary information for designing anaerobic digestion (AD) system and optimizing biogas production. The analysis of sludge samples collected from Jurong WRP was completed in the first part of the project (August 2013 to March 2014), while the second part of the project (March 2014 to August 2015) focused on the samples from the Integrated Validation Plant (IVP) located in Ulu Pandan WRP.


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Item Type: Report (Project Report)
Item Status: Live Archive
Additional Information: Unpublished report.
Faculty / Department / School: No Faculty
Date Deposited: 30 Jul 2018 04:52
Last Modified: 30 Jul 2018 04:52
Uncontrolled Keywords: wastewater treatment plants
Fields of Research : 09 Engineering > 0904 Chemical Engineering > 090409 Wastewater Treatment Processes
09 Engineering > 0907 Environmental Engineering > 090703 Environmental Technologies
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
URI: http://eprints.usq.edu.au/id/eprint/34536

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