00880nas|a2200193 i 450000500170000000800410001703500150005810000240007324501320009724600970022926000520032630000100037849000310038850000680041965000240048765000510051171000610056281000630062320260818113742.0201198s1990    th  uzm rtt  00|  a1eng d  a.b102792710 aChongrak Polprasert10aFinal report on upgrading and management of sludge treatment facility at North Bangkok Water Treatment Plant /cby ... [et al.]30aUpgrading and management of sludge treatment facility at North Bangkok Water Treatment Plant  aBangkok :bAsian Institute of Technology,c1990  a90 p.1 aResearch report ;vno. 241  aAt head of title: Metropolitan Waterworks Authority of Thailand 0aWaterxPurification 0aSewagexPurificationxActivated sludge process10aThailand.bMetropolitan Waterworks Authority of Thailand2 aAsian Institute of Technology.tResearch report ;vno. 241