Abstract:
Naula Reservoir has been selected as a source of Naula Water Supply Scheme. The reservoir is recharged through the Naula oya Water Treatment Plant is carryout their service continuously 08 or 12 hrs /day.
There is an agricultural land around the reservoir. Therefore, it leads to increase the nutrient content such as nitrate and phosphate of the reservoir (1-lorne and Goldman, 1994). Increase of the nutrient content caused the algae growth in reservoir leads to the Eutrophication. During the high temperature season in the year, the growth of the phytoplankton and the algae is increase because lake has good conditions for their growth (Horne and Goldman, 1994).
During the dry season, blackish color sludge is formed and foul smelling occurs within water distribution system. The main Objective of this research is Propose the feasible and economical solution for appropriate to the Sri Lanka, problem involve Naula Water treatment Plant.