This study presents a comprehensive methodology for the implementation of Nature-based Solutions (NbS) in context urban flood mitigation, specifically within heritage city Guangzhou, China. The investigation delves into roles morphology and impermeability exacerbating risk through enhanced runoff accumulation reduced infiltration. A key focus is spatial heterogeneity susceptibility, influenced by disparate distribution various building types demographic segments. research integrates...

This study presented a flood estimation model for Johor River in Kota Tinggi watershed, Malaysia using HEC-HMS (Hydrologic Modeling System). Calibration and validation processes were carried out different sets of data. Evaluation on the performance developed derived yield correlation coefficient R super(2) close to 1. The simulated Q sub(peak) are 150.9 m super(3) sec super(-1), while observed 10 years record (1997-2006) is 145.12 super(-1). percentage error values 4% with value 0.905. Based...

The potential of activated carbon from palm kernel shell (PKS-AC) to improve the quality surface water and greywater based on measurements parameters pH, turbidity, chemical oxygen demand (COD), total dissolved (TDS) suspended solids (TSS) was investigated in present study. PKS acid treated with aqueous H3PO4 (1 N) for overnight at room temperature then subjected heat treatment 550 °C 2 h. efficiency PSK-AC samples 30 40 mm thicknesses examined reduction above 5, 15, 60 min filtration...

Abstract In December 2006 until January 2007, the Northeast Monsoon had contributed to heavy rain through a series of continuous extreme storms that caused disastrous flood for several areas Malaysia. This study aimed at Batu Pahat, Johor catchment are heavily impacted due low-lying area. The stagnant flooding occurred during 2006/2007 event huge losses towards residents, properties and environment. paper aims determine hydraulic hydrologic characteristics in Pahat catchment. ICM Infoworks...

Abstract Coastal areas are ecologically, economically, socially, and culturally significant but face environmental challenges that demand sustainable management. This study assessed water sediment quality along 440 km of shorelines in mainland Kedah Langkawi Island. Water was analyzed through 22 samples collected across the area, evaluating 24 parameters compared to Malaysian Marine Quality Standards (MWQS). Sediment at two sites (S1 S2) based on heavy metal concentrations, including Nickel...

Submerged vegetation plays a crucial role in influencing flow hydrodynamics, generating turbulence, and shaping velocity distributions aquatic environments. This study investigates the hydrodynamic effects of submerged rigid vegetation, specifically focusing on local turbulence alterations resulting from removal single stem an otherwise uniform array under controlled laboratory conditions. Experiments were conducted flume using Acoustic Doppler Velocimetry (ADV) to measure 3D...

In recent years, both anthropogenic and climate changes have caused the depletion of surface water resources, shifts in rainfall accelerations temperature, which indicates importance their examination to flood forecasting analyses. This paper studies synchronised management strategies, considering upstream downstream dynamics using field data from 1986 2018. Seasonal decadal variations show need for adaptive strategies address potential change impacts on discharge, precipitation temperature...

Abstract Malaysia is currently a rapidly developing country to achieve 2020 vision. However the development that has been carried out contributed negative impact on environment especially water quality. Due deterioration of quality, serious management efforts quality taken. Thus, aim this study investigate technique can automatically classify The based concept Artificial Neural Network (ANN). Since greater part their methodologies depend idea `pattern recognition’. it convenient inspect its...

Grassed swales are the best management practice (BMP), which has been widely used to reduce peak flow, water pollution through vegetated filtration, and improve groundwater recharge. Universiti Tun Hussein Onn Malaysia (UTHM) is using approach of grassed recommended by Department Irrigation Drainage (DID) for reducing risk flooding controlling pollution. This paper investigates variations roughness coefficients with flow depth in campus UTHM. Fieldwork was carried out on swale collect...

Excessive release of textile wastewater with heavy metals into environment has posed a great problem to the natural water system. The efficiency adsorption process remove depend on adsorbent. commercial activated carbon is one most efficient adsorbent, but limitation lies in high cost. Therefore, present study aimed investigate sugarcane bagasse modified by phosphoric acid as adsorbent for removal zinc (Zn) and Ferum (Fe) from wastewater. was conducted using batch method function pH (2-7),...

The water quality for the shorelines of Kuching, Samarahan, and Betong divisions was assessed based on primary secondary data which then compared to National Water Quality Standards Marine Criteria Malaysia. Index (WQI) (MWQI) were generated where applicable. results reveal that baseline river monitoring locations portrayed slight pollution with WQI ranging from 60 80 except Sg. Seblak station polluted quality, registering 42. Most marine stations recorded excellent moderate MWQI apart Btg....

Abstract Flood catastrophe continuously hit Malaysia through monsoonal flood and flash as well posing threat towards people, infrastructure environment. Batu Pahat is among the district in Johor affected by disaster for almost every year. This study conducted to determine hydraulic hydrological characteristic ability of drainage system Parit Besar Jalan Pontian-Batu catchment area at using HEC-RAS software. Through HEC-RAS, floodplain map was also produced access overview potential areas....

Coastal hazards refer to various natural processes and events occurring at coastlines are driven by a combination of geological, meteorological, oceanographic factors, posing risks human activities, infrastructure, the environment. Efforts mitigate consequences these essential minimize potential ensure sustainability nearshore communities. Such efforts developing early warning systems, constructing protective structures, proper land-use planning, sustainable coastal management practices. In...

Abstract Waves climate analysis is of primary concern for several purposes such as maintaining coastal structures, navigation and maritime operations, management, recreation tourism. Therefore, understanding the wave a particular region helps in making informed decisions related to activities, ensuring safety, efficiency, sustainability. In this paper, was conducted Kelantan State shoreline, Malaysia. The studied shoreline covers around 71 km starting from Pengkalan Kubur Besut. 5 years data...

Abstract The primary objective of this study was to gain insight into the kinetics mechanism involved in removal oil from produced water using nanobubbles. A small-scale device called Solari - N MBG 0.35, manufactured by Energy Limited, employed generate Batch experiments were conducted evaluate impact varying nanobubble concentrations on removal. results revealed that at initial contact time led enhanced This improvement attributed factors such as increased interfacial energy, improved...

Abstract Shoreline erosion and accretion are natural processes that involve the gradual change in shape position of coastlines due to movement water, sediment, geological factors. These have significant implications for coastal environments, ecosystems, human activities. Therefore, it is essential frequently assess shoreline changes effective management, sustainable development, safeguarding valuable ecosystems. In present study, condition along mainland Kedah (109 km) was investigated...

The study of floodplain is significant to human life and social economy. It can be seen that by using most computer models, locations structures affected floodwaters, such as bridges roads cannot effectively compared the location in stream analysis. purpose this develop an output Hydrologic Engineering Center’s River Analysis System (HEC-RAS) hydraulic model enable one dimensional steady flow This applied Sembrong river catchment area, located Batu Pahat. Floodplain data features length...

The current work aimed to investigate the removal mechanism of NH4+ from wastewater treatment plant effluent (WWTPE) onto zeolite in plug-flow column reactor (PFCR). adsorption process was optimised as a function length (2–15), time (0.5–202 min), and accumulation (0.05–2.4 mg/g) using response surface methodology (RSM). optimal operating parameters for were recorded after 134.89 min with 1.52 mg/L 6.685 cm where predicted actual 99.79 vs. 98.00% WWTPE. bed depth service (BDST), Thomas,...