Proposing of an aerated water treatment plant for reducing water pollution problem in Losari Beach after reclamation

摘要

Abstract. Losari Beach is the most important site in Makassar. It lies at the west side of Makassar city. This place isudknown as the place where people are relaxed and gathering with friends or family after working, and now it becomes theudicon of Makassar city. As the biggest city in eastern Indonesia, Makassar grows very fast. We can find constructions forudbuilding hospitals, shopping malls, bussines activities, and residences everywhere. The most important constructionudactivities that will effect Losari Beach is the reclamation to build the Center Point of Indonesia that takes an area of 157udhectares and it is located at the west side of Losari Beach. In the last research presented in 9th International Conferenceudon Marine Technology (October 2014) using surface-water modeling system (SMS) software showed that reclamationudwill significantly increase concentrations of BOD and COD (?? 7 mg / L for BOD and 6.2 mg / L for COD). Thisudcondition will cause Losari Beach becomes very polluted. A probable solution to overcome this problem is to clean theudwastewater before introducing to the sea. This paper will describe the type of the wastewater treatment plant that can beudused to solve the water pollution problem in Losari Beach.