According to Tan (2000), liquid waste is referred to as effluent. The liquid waste examples are effluent from process plant, industrial, agricultural and other sources. Large amount of liquid waste bring negative impact on environment. Thus, liquid waste treatment is required to remove contaminants from wastewater, both run-off and domestic. Furthermore, the treatment process is needed to make it more suitable for desired end-use such as for drinking, bathing, industry other uses. As elaborated by Mannan (2005), there are four processes of liquid waste treatment which arepre-treatment, primary treatment, secondary treatment, and tertiary …show more content…
EIA has become legislation in many developed countries for and is now increasingly applied in developing countries and economies in transition for example in Malaysia.
The aim of EIA is to ensure that potential problems are foreseen and addressed at an early stage in the project planning and design. In this regard, it becomes a planning tool in the design of a project to prevent environmental disaster and consequently, to avoid costly mistakes in project implementation at the earliest stage. EIA is an important process in deciding the final shape of a project. It helps the project proponent to achieve his objective more successfully because:
1. A project that has been designed to suit the local environment is more likely to be completed on time and within budget, and is more likely to avoid difficulties along the