Universiti Teknologi Malaysia Institutional Repository

Modeling of SBR for wastewater treatment in Malaysia implementing ASM2 using AQUASIM

Al-Shididi, S. and Henze, M. and Ujang, Z. and Batstone, D. J. (2004) Modeling of SBR for wastewater treatment in Malaysia implementing ASM2 using AQUASIM. In: Environmental Biotechnology, Water and Environmental Management Series. IWA Publishing, London, pp. 221-230. ISBN 1843395037

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Abstract

The objective of this paper is to use modelling as a tool to investigate the use of sequencing batchreactors (SBRs) for wastewater treatment in Malaysia. A modified form of the Activated Sludge Model No. 2 (ASM2)was implemented using AQUASIM 2.0 as a modelling platform to simulate the microbial activities in a 10 litre singletank SBR reactor. The model results were compared to observed results in a real 10-litre system. The modelindicated a steady state mixed liquor suspended solid (MLSS) of 3260 mgSS/l. Removal efficiencies of COD, TN,NH4 + and NOx- were 89%, 91.5%, 99% and 100% respectively for the modelling compared with 89.5(±1.2)%, 91(±1.0)%, 98.5(±0.5)% and 98.75(±0.8)% respectively for the experiments. The rates of Nitrification anddenitrification were 13.7 and 18.3 [mgNOx --N/(l.h)] respectively for the modelling compared with 13.95(±1.0) and 18.1(±0.3) [mgNOx --N/(l.h)] respectively for the experiments. The study indicated that for design, operating and monitoring purposes, modelling can help in implementing a sludge control to determine the required biomassconcentration with a given react phase time.

Item Type:Book Section
Uncontrolled Keywords:AQUASIM, ASM2, Malaysia, react time, removal efficiency, sequencing batch reactor (SBR)
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:25757
Deposited By: Liza Porijo
Deposited On:12 Jun 2012 04:25
Last Modified:25 Jun 2012 06:51

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