02179cas|a2200241 i 450000500170000000800410001703500150005810000310007324500800010426000520018430000110023649000270024750001570027450200580043152010590048965000370154870000320158570000480161770000430166571001050170881000590181385600650187220260817162833.0170399s1991    th  uzm rtt  00|  a1eng d  a.b100873820 aKeattisak Amornprasertsook10aApplication of anaerobic filter to the treatment of low strength wastewater  aBangkok :bAsian Institute of Technology,c1991  a103 p.1 aThesis ;vno. EV-91-28  aA thesis submitted in partial fulfillment of the requirements for  the degree of Master of Engineering, School of Environment, Resources and Development  aThesis (M.Eng.) - Asian Institute of Technology, 1991  aThe laboratory scale anaerobic filters were studied to treat  the low strength wastewater (less than 1000 mgCOD/L) at ambient  temperature (25-35oc) in tropical country. Baby.milk was used as  substrates for microorganism with the expected concentrations of  1000, 500 and 200 mg /L as COD basis. The COD loading rates were  0.5, 0.25 and 0.1 kg/m3.d with HRT of 40 hours. Removal  efficiency of 90% to 96% with the effluent COD of 20 mg/L can be  achieved from influent COD as low as 200 mgCOD/L. Due to the  removal results from accumulation or entrappment of substrates in  the reactor, so only treatment ability of influent COD of 1000  and 500 mgCOD/L have been accepted if the actual stabilization  and methane conversion are taken into account and consequently,  the removal efficiency and percent methane conversion increase  when the influent COD concentration increases. Lipids are not  completely degraded to methane and only accumulate inside the  reactors and its removal aren't much different by changing of  of influent COD concentration.  0aSewagexPurificationxFiltration1 aMino, Takashi,eChairperson0 aChongrak Polprasert,eExamination Committee1 aHarada, Hideki,eExamination Committee2 aDEUTSCHER AKADEMISCHER AUSTAUSCHDIENST,  DAAD.(German Academic Exchange Service),eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. EV-91-28  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B17419