DESIGN OF WASTEWATER COLLECTION SYSTEM FOR BEIT AULA TOWN

Abstract

The disposal of raw wastewater without treatment creates major potential health and enviromental problems. In the Hebron rural areas, the sewage facilities do not exist.The people disposal sanitary waste in cesspits, laterains and open drains. wastewater has been seeping into the ground through the overflows of the deteriorated cesspits and latrines causing serious environmental and health problems. Beit Aula like other towns in Hebron district has no wastewater collection system.The people are using cesspits, latrines and septic tanks. These latrines and cesspits are deterorating and they are in very bad condition, adding to this the increasing in water consumption and consequently increasing in wastewater production, resulting in over flows from the cesspits and excessive recharges of ground water in Beit Aula town. For all these reasons, this study is conducted to design wastewater collection system for Beit Aula town in the Hebron district. The present study considered the annual population growth and their water consumption for the coming 25 years that will be the design period, along with the commercial and industrial development in the area. The necessary hydraulic calculation needed for the design of the main trunks will carried out by simple calculation. VI The study shows anumber of important conclusions , wastewater disposal in Beit Aula town causes problems to the people ; subsequently there is abig need for design and construction of wastewater collection system . Gravity flow sanitary sewer was proposed for Beit Aula to minimize the cost of construction and excavations . The proposed wastewater collection system for Beit Aula town covers most of the areas of the town except for small areas closed by Israeli military orders