چکیده مقاله
An up flow anaerobic sludge fixed film UASFF bioreactor was to treat the pretreated palm oil mill effluent POME In physical pretreatment, POME was pre settled for 2h and the supernatant was fed into the reactor In chemical pretreatment , optimum dosages of cationic and anionic polymers were used Experiments of pretreated POME digestion were conducted based on a central composite face – centered CCFD with two independent operating variables, feed flow rate QF and up flow velocity Vup The operating variables were varied to cover a wide range of organic loading rate OLR from 3 8 to 29 g COD /l d Four dependent parameters were measured as response factors These parameters were total COD TOCD removal, effluent total volatile fatty acid TVFA , effluent bicarbonate alkalinity BA , and methane yield YM Associate stable TCOD removal efficiency of 83 5% was achieved at the highest QF 3031 l/Department, corresponding to OLR of 26g COD/ld for pre settle POME whereas only 62 2% TCOD removal was achieved with chemically pretreated POME at QF of 7 636 l d corresponding to OLR of 29 g COD/l d and that too was coupled with prosess instability The highest level of yield was 0 34 and 0 33 for pre settled and chemically pretreated POME , respectively , where QF and Vup were 1 01 and 0 2 m/h, respectively The obtained results provided valuable information about interrelations of equality and process parameters at various operating conditions and also showed effects of suspended solids on the reactor performance
کلیدواژهها
نویسندگان
A.A.L.Zinatizadeh
School of Chemical Engineering Campus, University Sains Malaysia
A.R.M.Mohamed
professor
M.D.Mashitah
A.A.L.Zinatizadeh School of Chemical Engineering Campus, University Sains Malaysia A.R.M.Mohamed professor A.Z.Abdullah
A.Z.Abdullah
A.A.L.Zinatizadeh School of Chemical Engineering Campus, University Sains Malaysia A.R.M.Mohamed professor M.D.Mashitah
شیوه ارجاع
A.A.L.Zinatizadeh, and A.R.M.Mohamed, and M.D.Mashitah, and A.Z.Abdullah, ,1385,Effect of physical and Chemical Pretreatment on Palm Oil Mill Effluent Digestion in an Up-flow Anaerobic Sludge Fixed Film Bioreactor,7th International Congress on Civil Engineering,Tehran
ارائهشده در
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