About the lab

Water Lab

Featured research (23)

In recent years, extreme rainfall and related disasters, including floods and landslides, have led to significant property damage and loss of life globally. Southeast Asia (SEA) is particularly impacted by these rainfall-driven events. This study reviews research development and approaches to understand the current status of monsoonal extreme rainfall in SEA, with the importance of the impacts of natural and anthropogenic factors. Natural factors, including the individual and combined effects of various climatic phenomena, such as Madden–Julian Oscillation (MJO), El Niño–Southern Oscillation (ENSO) and cold surges (CSs), have significant impacts on rainfall patterns. Anthropogenic factors, including emissions and changes in land use, also play a crucial role in producing extremes. This review identifies key challenges, such as the uncertainty in both available rainfall datasets and climate models, emphasising the needs for climate model improvement and better adaptation to complex regional climatic and geographical environments. The findings enhance understanding and response strategies to extreme rainfall events and mitigate the associated negative impacts.
Flooding remains a persistent and ongoing challenge in Malaysia, posing continuous difficulties and hardships; therefore, combating flood risk has become a main priority for sustainable development in this country. The application of sophisticated engineering in hard structure approaches and flood control systems are often incongruous to the public. Therefore, there is a need to integrate soft engineering approaches and best practices of flood management to mitigate flood risk. There is also a need to integrate the concept of sustainable development into its planning policies towards flood hazard reduction. Mobile flood protection measures are useful as an alternative solution in flood protection and mitigation purposes. Mobile protective systems serve as a temporary solution to enhance the height of permanent flood defence structures during extreme events. They can also be deployed as emergency measures to mitigate flooding in vulnerable low-lying regions. As the available mobile systems differ in the type of material, method of installation and available protection height, a description of their features, and potential application are examined including their respective opportunities and drawbacks. This paper presents a review on different types of lightweight mobile flood wall barrier (MFWB) that were implemented to cope with floods in Malaysia with examples of application in other countries such as United Kingdom, Slovakia, and Netherlands. The MFWB products are reviewed and compared to each other according to the types, characteristics, mechanisms, drawbacks, and how these measures are integrated into spatial planning. Based on the findings, several recommendations are provided regarding enhancing flood risk management in areas prone to flooding and the way forward for Malaysia.
Ammonium is a form of nitrogen that can be present in natural water systems due to various sources, including agricultural runoff, wastewater discharge, and decomposition of organic matter. High concentrations of ammonium in seawater can have several significant consequences for marine ecosystems such as harmful algal blooms, oxygen depletion, acidification, and changes in nutrient ratios. Therefore, monitoring and regulating nutrient inputs are essential for protecting marine ecosystems and maintaining the health and productivity of coastal and open ocean environments. In this study, adsorption isotherm experiments were used to study ammonium adsorption by surface bed sediments in the Loughor Estuary, South Wales, UK. The findings indicated that the adsorption isotherm was linear and fitted the Freundlich adsorption isotherm. The adsorption coefficient of ammonium in the study area ranged from 9.3 to 18 ml/g and the dimensionless ammonium adsorption coefficient was found to be ranged between 23.0 and 36.5. These values correlated well with the organic carbon content, of the sediments and can be considered as the main factors controlling ammonium sorption. The results also showed that salinity affected the adsorption of ammonium and the distribution of ammonium between the sediments and the water column. The amount of ammonium adsorption on the sediments was found to decrease gradually with the increment of the salinity levels.
Ammonium is a form of nitrogen that can be present in natural water systems due to various sources, including agricultural runoff, wastewater discharge, and decomposition of organic matter. High concentrations of ammonium in seawater can have several significant consequences for marine ecosystems such as harmful algal blooms, oxygen depletion, acidification, and changes in nutrient ratios. Therefore, monitoring and regulating nutrient inputs are essential for protecting marine ecosystems and maintaining the health and productivity of coastal and open ocean environments. In this study, adsorption isotherm experiments were used to study ammonium adsorption by surface bed sediments in the Loughor Estuary, South Wales, UK. The findings indicated that the adsorption isotherm was linear and fitted the Freundlich adsorption isotherm. The adsorption coefficient of ammonium in the study area ranged from 9.3 to 18 ml/g and the dimensionless ammonium adsorption coefficient was found to be ranged between 23.0 and 36.5. These values correlated well with the organic carbon content, of the sediments and can be considered as the main factors controlling ammonium sorption. The results also showed that salinity affected the adsorption of ammonium and the distribution of ammonium between the sediments and the water column. The amount of ammonium adsorption on the sediments was found to decrease gradually with the increment of the salinity levels.

Lab head

Fang Yenn Teo
Department
  • Department of Civil Engineering
About Fang Yenn Teo
  • Fang Yenn Teo currently works at the Department of Civil Engineering, the University of Nottingham, Malaysia Campus. Fang Yenn does research on Hydro-Environmental Engineering, Flood Risk Modelling, and Water Resources Management.

Members (7)

Chien Hwa Chong
  • University of Nottingham Malaysia Campus
Xin Yi Chong
  • Monash University Malaysia
Cha Yao Tan
  • University of Nottingham Malaysia Campus
Chow Hock Lim
  • University of Nottingham Malaysia Campus
Nurlailah Abdillah
  • National Hydraulic Research Institute of Malaysia
Jun Lim Wong
  • University of Nottingham Malaysia Campus
Yih Yoong Lip
  • University of Nottingham Malaysia Campus
Kian Wah Liew
Kian Wah Liew
  • Not confirmed yet
Wong Jun Lim
Wong Jun Lim
  • Not confirmed yet