Treatment of thin stillage in a high-rate anaerobic fluidized bed bioreactor (AFBR)

Mehran Andalib; Hisham Hafez; Elsayed Elbeshbishy; George Nakhla; Jesse Zhu

doi:10.1016/j.biortech.2012.07.008

Treatment of thin stillage in a high-rate anaerobic fluidized bed bioreactor (AFBR)

Mehran Andalib
, Hisham Hafez
, Elsayed Elbeshbishy
, George Nakhla^*
, Jesse Zhu

^*Corresponding author for this work

Research output: Journal Publication › Article › peer-review

53 Citations (Scopus)

Abstract

The primary objective of this work was to investigate the treatability of thin stillage as a by-product of bioethanol production plants using an anaerobic fluidized bed bioreactor (AFBR) employing zeolite with average diameter of (d_m) of 425-610μm and specific surface area (SSA) of 26.5m²/g as the carrier media. Despite the very high strength of thin stillage with chemical oxygen demand of 130,000mgTCOD/L and suspended solids of 47,000mgTSS/L, the AFBR showed up to 88% TCOD and 78% TSS removal at very high organic and solids loading rates (OLR and SLR) of 29kg COD/m³d and 10.5kgTSS/m³d respectively and hydraulic retention time (HRT) of 3.5days. Methane production rates of up to 160L/d at the steady state equivalent to 40L_CH4/L_{thin stillage}d and biogas production rate per reactor volume of 15.8L_gas/L_reactord were achieved.

Original language	English
Pages (from-to)	411-418
Number of pages	8
Journal	Bioresource Technology
Volume	121
DOIs	https://doi.org/10.1016/j.biortech.2012.07.008
Publication status	Published - Oct 2012
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Free Keywords

Fluidized bed bioreactor
High rate anaerobic digester
Suspended solids
Thin stillage

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

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10.1016/j.biortech.2012.07.008

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title = "Treatment of thin stillage in a high-rate anaerobic fluidized bed bioreactor (AFBR)",

abstract = "The primary objective of this work was to investigate the treatability of thin stillage as a by-product of bioethanol production plants using an anaerobic fluidized bed bioreactor (AFBR) employing zeolite with average diameter of (dm) of 425-610μm and specific surface area (SSA) of 26.5m2/g as the carrier media. Despite the very high strength of thin stillage with chemical oxygen demand of 130,000mgTCOD/L and suspended solids of 47,000mgTSS/L, the AFBR showed up to 88\% TCOD and 78\% TSS removal at very high organic and solids loading rates (OLR and SLR) of 29kg COD/m3d and 10.5kgTSS/m3d respectively and hydraulic retention time (HRT) of 3.5days. Methane production rates of up to 160L/d at the steady state equivalent to 40LCH4/Lthin stillaged and biogas production rate per reactor volume of 15.8Lgas/Lreactord were achieved.",

keywords = "Fluidized bed bioreactor, High rate anaerobic digester, Suspended solids, Thin stillage",

author = "Mehran Andalib and Hisham Hafez and Elsayed Elbeshbishy and George Nakhla and Jesse Zhu",

note = "Funding Information: The authors gratefully acknowledge GreenField Ethanol Inc., Chatham, Canada , Natural Science and Engineering Research Council of Canada (NSERC) , Ontario Center of Excellence (OCE), Canada , for their support and interest in this project.",

year = "2012",

month = oct,

doi = "10.1016/j.biortech.2012.07.008",

language = "English",

volume = "121",

pages = "411--418",

journal = "Bioresource Technology",

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AU - Andalib, Mehran

AU - Hafez, Hisham

AU - Elbeshbishy, Elsayed

AU - Nakhla, George

AU - Zhu, Jesse

N1 - Funding Information: The authors gratefully acknowledge GreenField Ethanol Inc., Chatham, Canada , Natural Science and Engineering Research Council of Canada (NSERC) , Ontario Center of Excellence (OCE), Canada , for their support and interest in this project.

PY - 2012/10

Y1 - 2012/10

N2 - The primary objective of this work was to investigate the treatability of thin stillage as a by-product of bioethanol production plants using an anaerobic fluidized bed bioreactor (AFBR) employing zeolite with average diameter of (dm) of 425-610μm and specific surface area (SSA) of 26.5m2/g as the carrier media. Despite the very high strength of thin stillage with chemical oxygen demand of 130,000mgTCOD/L and suspended solids of 47,000mgTSS/L, the AFBR showed up to 88% TCOD and 78% TSS removal at very high organic and solids loading rates (OLR and SLR) of 29kg COD/m3d and 10.5kgTSS/m3d respectively and hydraulic retention time (HRT) of 3.5days. Methane production rates of up to 160L/d at the steady state equivalent to 40LCH4/Lthin stillaged and biogas production rate per reactor volume of 15.8Lgas/Lreactord were achieved.

AB - The primary objective of this work was to investigate the treatability of thin stillage as a by-product of bioethanol production plants using an anaerobic fluidized bed bioreactor (AFBR) employing zeolite with average diameter of (dm) of 425-610μm and specific surface area (SSA) of 26.5m2/g as the carrier media. Despite the very high strength of thin stillage with chemical oxygen demand of 130,000mgTCOD/L and suspended solids of 47,000mgTSS/L, the AFBR showed up to 88% TCOD and 78% TSS removal at very high organic and solids loading rates (OLR and SLR) of 29kg COD/m3d and 10.5kgTSS/m3d respectively and hydraulic retention time (HRT) of 3.5days. Methane production rates of up to 160L/d at the steady state equivalent to 40LCH4/Lthin stillaged and biogas production rate per reactor volume of 15.8Lgas/Lreactord were achieved.

KW - Fluidized bed bioreactor

KW - High rate anaerobic digester

KW - Suspended solids

KW - Thin stillage

UR - https://www.scopus.com/pages/publications/84865553580

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DO - 10.1016/j.biortech.2012.07.008

M3 - Article

C2 - 22864177

AN - SCOPUS:84865553580

SN - 0960-8524

VL - 121

SP - 411

EP - 418

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Treatment of thin stillage in a high-rate anaerobic fluidized bed bioreactor (AFBR)

Abstract

UN SDGs

Free Keywords

ASJC Scopus subject areas

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