TY - SER AU - Chongrak Polprasert ED - Thailand. TI - Final report on upgrading and management of sludge treatment facility at North Bangkok Water Treatment Plant T2 - Research report PY - 1990/// CY - Bangkok PB - Asian Institute of Technology KW - Water KW - Purification KW - Sewage KW - Activated sludge process N1 - At head of title: Metropolitan Waterworks Authority of Thailand ER -