Nitrogen Removal in Septic Tank Effluent Using Separate Nitrification-Denitrification Biotextile Filters

摘要

This paper reports on an experimental septic tank system serving a 3-bedroom home in rural, south-eastern ontario. The system's objective is to meet the drinking water strandard of 10 mg/l nitrite-nitrate as nitrogen without using conventional natural materials. The experimental system utilizes biotextile and geodrain materials in separae, recirculating nitrification-denitrification filters and polishing filters.