Dunia di Mataku

PROJECT TITLE:
TREATMENT FOR STORMWATER RUNOFF CONTAINING TREATED DOMESTIC WASTEWATER EFFLUENT BY SUBSURFACE FLOW CONSTRUCTED WETLAND (SSFCW)

RESEARCH BACKGROUND:
In recent years, many of the waterways and lakes in the world have become enriched with nutrients, mainly nitrogen and phosphorus resulting in eutrophication. This has occurred due to the entry of nutrients from several diffuse and point sources of pollution (Jayaweera and Kasturiarachchi, 2004). There is also a greater need to identify possible contaminants found in stormwater that impact the receiving water quality (Makepeace D. K et al., 1995).

It has been found that after secondary treatment in a conventional sewage treatment plant, normally some 25-75% of phosphorus, 90% of nitrogen and about 10% of both organic matter and suspended solids remain in the effluent making it one of the main potential sources of pollutants to lakes and rivers. Thus, to remove nutrients and other pollutants effectively from wastewaters some form of tertiary treatment unit that is economical and easy to operate is necessary in the treatment stream, and CWs have the potential to provide such a method of wastewater treatment (P.R. Thomas et al., 1995).

Wetlands are among the most important links in the natural ecosystem (Shuh-Ren Jing et al., 2001). To date, the most frequent application of wetlands to a river system is for flow management (Zalidis, 1998; Chauvelon, 1998), and a little is known about using wetland to treat polluted river water (Green et al., 1996). Eventually, the enhancement of water quality by constructed wetland systems is increasingly practiced worldwide (M.A El-Khateeb et. al, 2009).

Filtration and adsorption of runoff through CW was found to be a cost effective treatment method for stormwater. The system could remove BOD and COD (71-75%), SS (85%), ammonia (17-24%), nitrate (65-80%) and phosphorus (13%). Moreover, the borehole samples have shown no groundwater contamination with nitrogen or phosphorus from the wetland system (P.R. Thomas et al., 1995).

This project will be applicable for the improvement of water quality in UTP lake where Masjid An-Nur is located. The issues of polluted water from the lake have been raised to the HSE Department’s concern particularly on the aspect of turbidity, color and odour which are affecting the aesthetic value of the lake.

The proposed project will provide a treatment process for the stormwater runoff containing treated domestic wastewater effluent before it flows into the lake.

RESEARCH OBJECTIVES:
The objectives of this research are:

1. To improve the water quality of stormwater runoff particularly in removing Nitrogen, Phosphorus, Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD) and Suspended Solids (SS);

2. To propose a constructed wetland for UTP lake;

3. To determine the design criteria and optimum operating conditions for sustainable pollutants removal by wetland systems; and

this is a lil' bit of my project and what i've been still doing here.. so guys, look how significant my project is for UTP.. hehe... (borim2..xtau nak update ape..nak bergosip, tp malas wat dose sbb tgh pkai telekung nak smyg isya' nih.. huhu)