CORRELATION BETWEEN RAW WATER QUALITY AND ALGAL BLOOM IN COMMUNITY WATER TREATMENT SYSTEM

Approach to fresh drinking water is a basic requirement for human being survival. Moreover 70% of the Earth's surface is covered by water, with 97.5% of it being saltwater and only 2.5% being fresh water. Freshwater consumption has grown dramatically in recent years as a result of population and economic growth. Surface water provides 98 percent of Malaysia's fresh water thus, an appropriate wastewater treatment is necessary to assure a constant supply of clean water. Algal blooms are common in wastewater treatment systems, posing a threat to the clean water delivered to customers. Some key constraints on algae cultivation, productivity, and harvesting from wastewater treatment. Light intensity and exposure, food levels, nitrogen, phosphorus, water temperature and stratification, and the synthesis of allelochemicals by competing organisms are all factors that impact cyanotoxin production. As a result, an alternate approach that is more feasibly affordable and efficient must be discovered in order to solve this problem. The primary objective for this research study is to determine which water quality characteristics have most impact on the formation of algal blooms. Factors which contributing the development of algal bloom, the optimum parameters which lead to the maximum number of algae will be studied in depth. Three parameters have been estimated as the key factors on the development in which algae growth was studied by measure the final and initial mass of algal biomass. Analytical method is conducted to correlate between water quality and algal bloom. At the end of the study, the condition on the algal bloom occurring was at temperature of 32ºC, high amount of nutrients and at acidic condition of pH 5.0. The determination of the condition of algal bloom occurring lead to the proposed method on the prevention the algal bloom. Temperature and pH controller were being proposed to be used as to monitor and regulate the condition in the water treatment system to avoid the surrounding that not favoured to the growth. Amount of nutrients can be monitored by regularly checked by analysis method