"BENMOL Corporation." . . "United States. Environmental Protection Agency." . . "Dewatering wastewater treatment sludge by clathrate freezing a bench-scale feasibility study"@en . . . . . . . . . . . . . . . . . . . . . . . "Dewatering wastewater treatment sludge by clathrate freezing : a bench-scale feasibility study"@en . . "Dewatering wastewater treatment sludge by clathrate freezing : a bench-scale feasibility study" . "Dewatering wastewater treatment sludge by clathrate freezing: a bench - scale feasibility study"@en . . .