Evaluation results of the wastewater treatment system of small settlements in Syria

Abstract

The results of the environmental evaluation show the deterioration of water quality in the main river basins of Syria as a result of untreated domestic wastewater or insufficiently treated wastewater, commercial and industrial wastewater from certain activities. The sewage system, especially in small settlements, suffers from several problems such as: long sewer lines, errors in the design of treatment plants and the choice of treatment method, lack of qualified personnel, frequent power outages, large fluctuations in the flow and concentrations of wastewater pollution. 98% of treatment plants in small settlements operate with extended aeration activated sludge, which does not meet their requirements and does not provide high efficiency of wastewater treatment. One of the recommended solutions for the development of a wastewater treatment system in small settlements in Syria is considered rotating biological contactors RBC, which are the best option and most meet their requirements.