Browsing by Author "Hock Lye Koh"

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    Impact modeling of sewage discharge from Georgetown of Penang, Malaysia on coastal water quality
    (Kluwer Academic Publishers, 1997) Hock Lye Koh; Poh Eng Lim; Hooi Ling Lee
    Currently about 200,000 persons of the Penang Georgetown population is served by a sewerage system which conveys the raw sewage to an open channel flume in Jelutong for discharge into the Western Channel. This has resulted in the degradation of coastal water quality in the affected areas. Therefore, there exists an urgent need to look for other alternatives for sewage treatment and disposal. This paper presents the results of computer simulations on the impacts of sewage discharge on Penang coastal waters under two treatment and disposal options.
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    Sea level rise undermines SDG2 and SDG6 in Pantai Acheh, Penang, Malaysia
    (Springer, 2021) Xin Yi Kh’ng; Su Yean Teh; Hock Lye Koh; Shuhaida Shuib
    For coastal communities living in low elevation Pantai Acheh of Penang, Malaysia, salinization of groundwater caused by sea level rise (SLR) could pose a daunting challenge to water supply and crop cultivation, thereby undermining local water security (SDG6) and food security (SDG2). Modelling analysis using MANTRA was performed to examine the sustainability of coastal groundwater and vegetation in Pantai Acheh in response to SLR. MANTRA was developed by linking two United States Geological Survey (USGS) simulation models known as MANHAM and SUTRA.