The Efficiency of filter media used in anaerobic filter in wastewater treatment.

Abstract

The objectives of the present study are to determine the efficiency of three filter media (filter matte, bioball, and gravel) used in anaerobic filter wastewater treatment and to compare the efficiency of wastewater treatment among three wastewater flow rates (2, 4 and 8 L/hr) into the system. The results revealed that filter matte higher efficiency than the bioball and gravel in wastewater treatment. The treatment efficiencies of filter matte for chemical oxygen demand (COD) and biochemical oxygen demand (BOD) reduction were 66.1% and 81.1%, respectively. However, bioball showed the treatment efficiencies for COD and BOD reduction were 57.7% and 61.1%, whereas gravel showed the treatment efficiencies for COD and BOD around 52.2% and 56.0%. Then, filter matte was applied into the system to compare the efficiency of wastewater treatment among three wastewater flow rates; low (2 L/hr), medium (4 L/hr), and high (8 L/hr). The results showed that a medium flow rate had the highest treatment efficiencies for COD and BOD reduction (66.1% and 81.1%, respectively). These results are under standard criteria for some building type and building size.