Awareness of maintenance in sewerage treatment system on residential / Muhamad Raziz Iberahim

Sewerage services are a process for collection, transmission, treatment of waste water and maintenance of sewerage systems and septic tanks. In Malaysia, sewerage services are divided to two types of sewerage treatment system: a) Directly to public sewage treatment plants b) Individual septic tank system. In Malaysia, there have more than 6000 types of sewage treatment systems which are connected and 1.3 million individual septic tank. Sewerage systems are built to collect and transport wastewater from residential and commercial area, which typically has a relatively high concentration of biodegradable organic and inorganic compound that can be easily utilized by microorganisms (especially heterotrophic bacteria) for cells growth and life maintenance. Many chemical, physical and biological transformations of wastewater may take place and cause degradation of organic matters in sewer network. In order word, “treatment process” of wastewater has already started before the treatment plant (Abdul Talib, 2002).