Environmental studies of domestic wastewater treatment using integrated anaerobic/aerobic system

02-07-2016 09:46

Conventional aerobic technologies based on activated sludge processes are dominantly applied for the treatment of domestic wastewater due to the high efficiency achieved, the possibility for nutrient removal and the high operational flexibility. Anaerobic pre-treatment of domestic wastewater can serve a viable and cost-effective alternative due to its relatively low construction and operational cost, operational simplicity, low production of excess sludge, production of energy in form of biogas and applicability in small and large scales. A viable alternative is the sequential anaerobic–aerobic systems. The performance of the integrated anaerobic/aerobic wastewater treatment system (AAWTS) for domestic wastewater treatment has been investigated. The domestic wastewater and activated sludge were collected from Ras El-Bar wastewater treatment plant. The overall removal efficiency of the suggested system, is in the order TSS < TN < BOD < Cl- = TDS < COD < NH3.The deficiency of the applied AAWTS may be due to the limiting effect of salts on the biological treatment of saline influents