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ADM1 modeling of UASB treating domestic wastewater in Nepal

Lohani, Sunil Prasad and Wang, Shuai and Lackner, Susanne and Horn, Harald and Khanal, Sanjay Nath and Bakke, Rune (2016):
ADM1 modeling of UASB treating domestic wastewater in Nepal.
In: Renewable Energy, pp. 263-268, 95, ISSN 0960-1481,
[Online-Edition: http://www.sciencedirect.com/science/article/pii/S0960148116...],
[Article]

Abstract

The Anaerobic Digestion Model 1 (ADM1) was applied to the anaerobic digestion process in an Upflow Anaerobic Sludge Blanket (UASB) reactor treating domestic wastewater. It was evaluated based on data from a 250 L pilot scale reactor. The wastewater influent degradable characteristics and Sludge Retention Time (SRT) were established by several trial and errors simulation to establish appropriate values for parameters not measured experimentally. The model was further verified against varying load experimental results to ensure its usefulness for a wide range of relevant loads. The best fit was obtained using 60 d SRT and parameters recommended for mesophilic conditions, with average experimental values within 10% of the simulated results. The model gave a good estimation of reality and could be applied for feasibility analysis, design and operation of full-scale small plants to be used in rural areas. Kathmandu University (KU) domestic wastewater treatment plant simulation was used as example of such. It showed that a reactor volume of about 4 m3 (6 h HRT) would give reasonable reactor performance with 1.7 m3/d biogas production.

Item Type: Article
Erschienen: 2016
Creators: Lohani, Sunil Prasad and Wang, Shuai and Lackner, Susanne and Horn, Harald and Khanal, Sanjay Nath and Bakke, Rune
Title: ADM1 modeling of UASB treating domestic wastewater in Nepal
Language: English
Abstract:

The Anaerobic Digestion Model 1 (ADM1) was applied to the anaerobic digestion process in an Upflow Anaerobic Sludge Blanket (UASB) reactor treating domestic wastewater. It was evaluated based on data from a 250 L pilot scale reactor. The wastewater influent degradable characteristics and Sludge Retention Time (SRT) were established by several trial and errors simulation to establish appropriate values for parameters not measured experimentally. The model was further verified against varying load experimental results to ensure its usefulness for a wide range of relevant loads. The best fit was obtained using 60 d SRT and parameters recommended for mesophilic conditions, with average experimental values within 10% of the simulated results. The model gave a good estimation of reality and could be applied for feasibility analysis, design and operation of full-scale small plants to be used in rural areas. Kathmandu University (KU) domestic wastewater treatment plant simulation was used as example of such. It showed that a reactor volume of about 4 m3 (6 h HRT) would give reasonable reactor performance with 1.7 m3/d biogas production.

Journal or Publication Title: Renewable Energy
Volume: 95
Uncontrolled Keywords: ADM1 Domestic wastewater UASB SRT COD
Divisions: 13 Department of Civil and Environmental Engineering Sciences
13 Department of Civil and Environmental Engineering Sciences > Institute IWAR
13 Department of Civil and Environmental Engineering Sciences > Institute IWAR > Wastewater Engineering
Date Deposited: 08 Jan 2019 16:23
Official URL: http://www.sciencedirect.com/science/article/pii/S0960148116...
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