Design Of WastewaterCollection system For Idhna 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 . Idhna like other towns in the Hebron district has no wastewater collection system . 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 Idhna. For all these reasons, this study is conducted to design wastewater collection system for Idhna Town of the Hebron district.

The present study considered the annual population growth (3.5) and their water consumption for the coming 25 years 120 l/d that will be the design period, along with the commercial and industrial development in the area .The necessary hydraulic calculation need for the design of the main trunk was carried out by simple calculation. The results of the present study show that the waste collection system for Idhna town will cover all the area of the town , the collection system consist of four line as main line and seven submain , nine line designed by gravity and two line must used pump because of its outfall setuation near the .