Engineered wetlands for wastewater treatment in Sarawak

Demand for improved receiving water quality requires efficient domestic wastewater treatment systems in the state of Sarawak in Malaysia. Currently, most wastewater in Sarawak is treated primarily via individual septic tanks (ISTs), which is a traditional on-site and low level treatment technology....

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Main Author: Tang, Fu Ee
Other Authors: Associate Professor Dr Sobri bin Harun
Format: Conference Paper
Published: Universiti Teknologi Malaysia (UTM) 2009
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/6122
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author Tang, Fu Ee
author2 Associate Professor Dr Sobri bin Harun
author_facet Associate Professor Dr Sobri bin Harun
Tang, Fu Ee
author_sort Tang, Fu Ee
building Curtin Institutional Repository
collection Online Access
description Demand for improved receiving water quality requires efficient domestic wastewater treatment systems in the state of Sarawak in Malaysia. Currently, most wastewater in Sarawak is treated primarily via individual septic tanks (ISTs), which is a traditional on-site and low level treatment technology. Engineered wetlands are one of the most promising treatment systems for residential areas in Sarawak due to its sustainability, simple operation and maintenance and cost effectiveness. A viability study is presented here to study engineered wetlands as a possible domestic wastewater treatment system in residential areas in Sarawak. From the study, the construction, operational and maintenance cost of engineered wetlands is higher than individual septic tanks, but lower than that of electro-mechanical treatment systems. Although the land use of engineered wetlands is also larger than ISTs, they are capable of achieving Standard A of the Malaysian Environmental Quality Act 1974, which show potential for achieving higher treatment effectiveness compared to ISTs. From the survey, 50% of the respondents, which include housing developers, are unwilling to pay extra costs for centralized wastewater treatment. Engineered wetlands require larger land area which is costly in urban residential areas such as Miri City. 95% of the respondents think that it is more urgent to treat stormwater compared to wastewater, since the public is more concerned with flooding problems. 77% of the respondents support the concept of engineered wetlands provided the constraints are identified and justified. To conclude, from this survey engineered wetland is feasible as a sustainable wastewater and stormwater treatment option in Sarawak, with the support of local authorities and various parties.
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spelling curtin-20.500.11937-61222017-10-02T02:27:19Z Engineered wetlands for wastewater treatment in Sarawak Tang, Fu Ee Associate Professor Dr Sobri bin Harun Engineered wetlands Stormwater treatment Wastewater treatment Demand for improved receiving water quality requires efficient domestic wastewater treatment systems in the state of Sarawak in Malaysia. Currently, most wastewater in Sarawak is treated primarily via individual septic tanks (ISTs), which is a traditional on-site and low level treatment technology. Engineered wetlands are one of the most promising treatment systems for residential areas in Sarawak due to its sustainability, simple operation and maintenance and cost effectiveness. A viability study is presented here to study engineered wetlands as a possible domestic wastewater treatment system in residential areas in Sarawak. From the study, the construction, operational and maintenance cost of engineered wetlands is higher than individual septic tanks, but lower than that of electro-mechanical treatment systems. Although the land use of engineered wetlands is also larger than ISTs, they are capable of achieving Standard A of the Malaysian Environmental Quality Act 1974, which show potential for achieving higher treatment effectiveness compared to ISTs. From the survey, 50% of the respondents, which include housing developers, are unwilling to pay extra costs for centralized wastewater treatment. Engineered wetlands require larger land area which is costly in urban residential areas such as Miri City. 95% of the respondents think that it is more urgent to treat stormwater compared to wastewater, since the public is more concerned with flooding problems. 77% of the respondents support the concept of engineered wetlands provided the constraints are identified and justified. To conclude, from this survey engineered wetland is feasible as a sustainable wastewater and stormwater treatment option in Sarawak, with the support of local authorities and various parties. 2009 Conference Paper http://hdl.handle.net/20.500.11937/6122 Universiti Teknologi Malaysia (UTM) restricted
spellingShingle Engineered wetlands
Stormwater treatment
Wastewater treatment
Tang, Fu Ee
Engineered wetlands for wastewater treatment in Sarawak
title Engineered wetlands for wastewater treatment in Sarawak
title_full Engineered wetlands for wastewater treatment in Sarawak
title_fullStr Engineered wetlands for wastewater treatment in Sarawak
title_full_unstemmed Engineered wetlands for wastewater treatment in Sarawak
title_short Engineered wetlands for wastewater treatment in Sarawak
title_sort engineered wetlands for wastewater treatment in sarawak
topic Engineered wetlands
Stormwater treatment
Wastewater treatment
url http://hdl.handle.net/20.500.11937/6122