title: Particle removal in a novel sequential mechanical filter system loaded with blackwater.
abstract: A novel sequential mechanical filter system was developed as an alternative primary treatment method for onsite wastewater treatment. The filter combines traditional screening with a novel type of counter-flow filter using wood-shavings as a biodegradable filter matrix. This study tested the system in a batch loading regime simulating high frequency toilet flushing using blackwater from a student dormitory. The filter removed 78-85% of suspended solids, 60-80% of chemical oxygen demand, and 42-57% of total-P in blackwater, giving a retentate with a dry matter content of 13-20%. Data analysis clearly indicated a tendency towards higher removal performance with high inlet concentrations, hence, the system seems to be most applicable to blackwater or other types of wastewater with a high content of suspended solids.
authors.affiliation: Department of Environmental Sciences, Norwegian University of Life Sciences, Frognerbakken 3, N-1432 Aas, Norway E-mail: danitodt@gmail.com.
authors.forename: Daniel
authors.initials: D
authors.lastname: Todt
authors.affiliation: Department of Environmental Sciences, Norwegian University of Life Sciences, Frognerbakken 3, N-1432 Aas, Norway E-mail: danitodt@gmail.com.
authors.forename: Petter D
authors.initials: PD
authors.lastname: Jenssen
mesh_terms: D057919:Biological Oxygen Demand Analysis; D005374:Filtration / Q000295:instrumentation* / Q000379:methods; D014865:Waste Disposal, Fluid / Q000295:instrumentation* / Q000379:methods; D062065:Wastewater; D018508:Water Purification
chemical_list: D062065:Wastewater