Eco-Drainage System Towards Sustainable Urban Environment

Sustainable urban drainage is a concept that includes long-term environmental and social
factors in the planning and design of drainage systems. The function is to manage the
stormwaters in developments that replicate the natural drainage. The project is to
develop the drainage system to support an aquatic life that promotes balance ecosystems
and at the same time examines the best infiltration devices based on the condition at the
residential area in Bandar Seri Iskandar, Perak. Infiltration is the process by which
water on the ground surface enters the soil. Infiltration rate in soil science is a measure
of the rate at which soil is able to absorb rainfall or irrigation. Based from the studies
explained that the infiltration device was suitable to be implemented at the site area of
Sri Iskandar. The purpose of the infiltration device was to take off runoff water from
development and allows it to percolate into the ground. It reduced the volume of water
that has to be disposed of through sewers and then recharge of groundwater to maintain
water level in local watercourses. From the result, there were some improvement in the
water quality elements such as turbidity, pH value, COD, BOD5, DO, Ammonia
Nitrogen and Total Phosphorus. For the turbidity the percentage of removal was
11.63%, COD reduce to 39.29%, BOD reduce to 25.16%, Ammonia Nitrogen reduce to
9.68%o and Total Phosphorus reduce to 9.86%. This project was still under development
phase where there will be some requirements and aspects that need to be addressed of.