Design Of Wastewater Collection system And Storm Water Drainage system For Sourif Town

Abstract

The disposal of raw waste water and storm water without treatment creates major potential health and environmental problems. in Hebron rural areas, the sewage facilities do not exist. The people disposal sanitary waste in cesspits, laterains and open drains , the waste water has been seeping into the ground through the overflows of the deteriorated cesspits and laterains causing serious environmental and health problem . also water accumulate on the streets as a result of precipitation, population growth and development of the area causing storm water collection low areas and flood streets and walk ways. Sourif like other towns in the Hebron district has no drainage system for waste water and storm water. the people disposal sanitary waste in cesspit, laterains and open drain , these laterains and cesspit are deteriorating and they are in very bad condition , adding to this the increasing in water consumption and consequently increasing in waste water production, resulting in over flows from the cesspits and excessive recharges of ground water in Sourif area. Also rapid growth of the area has decrease vi the open area available for percolation of rain water and has greatly increased the runoff to low lying areas . The present study considered the annual population growth and their water consumption for the coming 25 years that will be the design period for the waste water collection system , also estimation of the accumulated areas , rainfall intensity and the quantity of storm water for the storm water drainage system and the necessary hydraulic simple calculation . The study shows a number of important conclusions . absence of drainage system in Sourif town cause problems to the peoples, subsequently there is a big need for design and construction of waste water collection system and storm water drainage system . gravity flow sewer were proposed for Sourif town to minimize the cost of construction and excavations .