PRETREATED PALM OIL MILL EFFLUENT (POME) DIGESTION IN AN UP-FLOW ANAEROBIC SLUDGE FIXED FILM BIOREACTOR: A COMPARATIVE STUDY

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ZINATIZADEH A.A.; MOHAMED A.R.; MASHITAH M.D.; ABDULLAH A.Z.; NAJAFPOUR GH.D.

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Journal: INTERNATIONAL JOURNAL OF ENGINEERING Year:2006 | Volume:19 | Issue:1 (TRANSACTIONS B: APPLICATIONS) Page(s): 1-9

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Title

PRETREATED PALM OIL MILL EFFLUENT (POME) DIGESTION IN AN UP-FLOW ANAEROBIC SLUDGE FIXED FILM BIOREACTOR: A COMPARATIVE STUDY

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Keywords

POME

PRETREATMENT

UASFF REACTOR

CENTRAL COMPOSITE FACE-CENTERED DESIGN (CCFD)

Abstract

An up-flow anaerobic sludge fixed film (UASFF) bioreactor was used to treat the pretreated palm oil mill effluent (POME). In physical PRETREATMENT, POME was pre-settled for 2 h 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 design (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. A stable TCOD removal efficiency of 83.5 % was achieved at the highest QF (3.31 l/d, corresponding to OLR of 26 g COD/l.d) for pre-settled POME whereas only 62.2 % TCOD removal was achieved with chemically pretreated POME at QF of 7.63 l/d (corresponding to OLR of 29 g COD/l.d) and that too was coupled with process instability. At comparable OLRs i.e. 16.95 g COD/l.d (QF=2.16 l/d) for pre-settled POME and 16.42 g COD/l.d (QF=4.32 l/d) for chemically pretreated POME, the VFA concentrations for the two cases were also similar.

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APA: Copy

ZINATIZADEH, A.A., MOHAMED, A.R., MASHITAH, M.D., ABDULLAH, A.Z., & NAJAFPOUR, GH.D.. (2006). PRETREATED PALM OIL MILL EFFLUENT (POME) DIGESTION IN AN UP-FLOW ANAEROBIC SLUDGE FIXED FILM BIOREACTOR: A COMPARATIVE STUDY. INTERNATIONAL JOURNAL OF ENGINEERING, 19(1 (TRANSACTIONS B: APPLICATIONS)), 1-9. SID. https://sid.ir/paper/355585/en

Vancouver: Copy

ZINATIZADEH A.A., MOHAMED A.R., MASHITAH M.D., ABDULLAH A.Z., NAJAFPOUR GH.D.. PRETREATED PALM OIL MILL EFFLUENT (POME) DIGESTION IN AN UP-FLOW ANAEROBIC SLUDGE FIXED FILM BIOREACTOR: A COMPARATIVE STUDY. INTERNATIONAL JOURNAL OF ENGINEERING[Internet]. 2006;19(1 (TRANSACTIONS B: APPLICATIONS)):1-9. Available from: https://sid.ir/paper/355585/en

IEEE: Copy

A.A. ZINATIZADEH, A.R. MOHAMED, M.D. MASHITAH, A.Z. ABDULLAH, and GH.D. NAJAFPOUR, “PRETREATED PALM OIL MILL EFFLUENT (POME) DIGESTION IN AN UP-FLOW ANAEROBIC SLUDGE FIXED FILM BIOREACTOR: A COMPARATIVE STUDY,” INTERNATIONAL JOURNAL OF ENGINEERING, vol. 19, no. 1 (TRANSACTIONS B: APPLICATIONS), pp. 1–9, 2006, [Online]. Available: https://sid.ir/paper/355585/en

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