title: Novel bioevaporation process for the zero-discharge treatment of highly concentrated organic wastewater.
abstract: A novel process termed as bioevaporation was established to completely evaporate wastewater by metabolic heat released from the aerobic microbial degradation of the organic matters contained in the highly concentrated organic wastewater itself. By adding the glucose solution and ground food waste (FW) into the biodried sludge bed, the activity of the microorganisms in the biodried sludge was stimulated and the water in the glucose solution and FW was evaporated. As the biodegradable volatile solids (BVS) concentration in wastewater increased, more heat was produced and the water removal ratio increased. When the volatile solids (VS) concentrations of both glucose and ground FW were 120 g L(-1), 101.7% and 104.3% of the added water was removed, respectively, by completely consuming the glucose and FW BVS. Therefore, the complete removal of water and biodegradable organic contents was achieved simultaneously in the bioevaporation process, which accomplished zero-discharge treatment of highly concentrated organic wastewater.
authors.affiliation: Department of Environmental Engineering & Energy, Myongji University, San 38-2, Namdong, Cheoingu, Yonginshi, Gyeonggido 449-728, Republic of Korea.
authors.forename: Benqin
authors.initials: B
authors.lastname: Yang
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Yongwoo
authors.initials: Y
authors.lastname: Lee
authors.forename: Deokjin
authors.initials: D
authors.lastname: Jahng
mesh_terms: D012722:Sewage / Q000382:microbiology*; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater; D014874:Water Pollutants, Chemical
chemical_list: D012722:Sewage; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: Biodegradable volatile solids; Bioevaperation; Highly concentrated organic wastewater; Metabolic heat