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008 170399s1991 th uzm rtt 00| a1eng d
035 _a.b10087382
099 9 _aAIT Thesis no. EV-91-28
100 0 _aKeattisak Amornprasertsook
245 1 0 _aApplication of anaerobic filter to the treatment of low strength wastewater
260 _aBangkok :
_bAsian Institute of Technology,
_c1991
300 _a103 p.
490 1 _aThesis ;
_vno. EV-91-28
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1991
520 _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.
650 0 _aSewage
_xPurification
_xFiltration
700 1 _aMino, Takashi,
_eChairperson
700 0 _aChongrak Polprasert,
_eExamination Committee
700 1 _aHarada, Hideki,
_eExamination Committee
710 2 _aDEUTSCHER AKADEMISCHER AUSTAUSCHDIENST, DAAD.(German Academic Exchange Service),
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. EV-91-28
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B17419
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