Appraisal of Septic Tank in Term ofWater Stagnation in Properties

The title of this project is 'Appraisal of Septic Tank in Term of Water Stagnation in
Properties'. This project is based on problem arising on the domestic wastewater
treatment unit namely septic tank. An ineffective septic tank may lead to water flow
disruption and cause stagnation inside septic tank. The stagnant water has become a
breeding ground for mosquitoes. Septic tanks for instance relatively contain clean
water with low turbidity; hence it is likely to be capable for breeding mosquito. The
damage of septic tank cover, manholes and vent pipes provide access for mosquito to
enter inside the tank. Taman Megan TigaandTaman MasKgKokin Sitiawan town,
and also Taman Maju in Perak Tengah district have been selected as study area due
to many cases of dengue infection that results in death. Basically it is aimed to
review the structural design and to examine the maintenance program by local
authority and health department in order to avoid water stagnation which later
becomes breeding ground for mosquitoes. For the first semester, the scope was
focused on examining the drainage system design and the stagnant water quality in
study area. In addition, the population of Aedes mosquitoes is also being counted by
ovitrap surveys. This project was done in Universiti Teknologi Petronas (UTP) to
control the population of mosquito by prevents it from further breeding. Then for
another semester, the scope is to proposed modification for the existing drainage
structure design. Water sampling and laboratory experiments for water quality test is
carried out throughout this process. Finally this project hopefully will come outwith
an improvement in drainage design and maintenance programme to avoid mosquito
breeding inside the structures.