title: High capacity trickling filters; two stage filters.
authors.forename: J A
authors.initials: JA
authors.lastname: MONTGOMERY
mesh_terms: D005374:Filtration; D012722:Sewage / Q000302:isolation & purification*; D014867:Water
chemical_list: D012722:Sewage; D014867:Water
keywords: SEWAGE/purification; WATER/filtration