Municipal wastewater treatment and associated bioenergy generation using anaerobic granular bed baffled reactor

Kiran Tota-Maharaj; Joseph Akunna; Denver Cheddie

Municipal wastewater treatment and associated bioenergy generation using anaerobic granular bed baffled reactor

Kiran Tota-Maharaj
, Joseph Akunna
, Denver Cheddie

Research output: Contribution to journal › Article › peer-review

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Abstract

This study assesses a modified anaerobic granular bed baffled reactor (GRABBR) which was assessed for municipal wastewater treatment at high organic loading rates (chemical oxygen demand ≥ 1,100 mg/l) under varying temperatures. For the two mesophilic temperatures tested (37⁰C and 25⁰C) under steady state conditions, the removal of Chemical Oxygen
Demand (COD) and Biochemical Oxygen Demand (BOD) was 80 to 90 %. At lower organic loadings, the reactor operated as a completely mixed system with most of the treatment occurring in the first two compartments. The GRABBR also showed very high solids retention with low effluent suspended solids concentration for all organic and hydraulic conditions. Applications of
GRABBR as a single unit, two-phase treatment system could be an economical option reducing the cost to achieve similar treatment goals for high strength wastewaters. The findings of this research suggest that the application of GRABBR is suitable for the treatment of multiple pollutants present in wastewater where each compartment acts as a specialised treatment stage
with biogas production.

Original language	English
Pages (from-to)	11-19
Number of pages	9
Journal	Journal of the Association of Professional Engineers of Trinidad & Tobago
Volume	45
Issue number	1
Publication status	Published - 31 Jul 2017

UN SDGs

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

SDG 6 Clean Water and Sanitation
SDG 7 Affordable and Clean Energy
SDG 11 Sustainable Cities and Communities
SDG 13 Climate Action

Keywords

Anaerobic baffled reactor
Bioenergy
Domestic wastewater treatment
Methane

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Akunna_MunicipalWastewaterTreatmentAndAssociatedBioenergyGeneration_Published_2017Final published version, 409 KB

http://www.apett.org/journal/vol45_n1_July2017/M02_17015_v45n1p11-19_(KTota-Maharaj)-Jun1724.pdf

Joseph Akunna
- j.akunnaabertay.acuk
- Department of Built Environment and Life Sciences - Professor in Water and Environmental Engineering
Person: Academic

Cite this

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title = "Municipal wastewater treatment and associated bioenergy generation using anaerobic granular bed baffled reactor",

abstract = "This study assesses a modified anaerobic granular bed baffled reactor (GRABBR) which was assessed for municipal wastewater treatment at high organic loading rates (chemical oxygen demand ≥ 1,100 mg/l) under varying temperatures. For the two mesophilic temperatures tested (37⁰C and 25⁰C) under steady state conditions, the removal of Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD) was 80 to 90 \%. At lower organic loadings, the reactor operated as a completely mixed system with most of the treatment occurring in the first two compartments. The GRABBR also showed very high solids retention with low effluent suspended solids concentration for all organic and hydraulic conditions. Applications of GRABBR as a single unit, two-phase treatment system could be an economical option reducing the cost to achieve similar treatment goals for high strength wastewaters. The findings of this research suggest that the application of GRABBR is suitable for the treatment of multiple pollutants present in wastewater where each compartment acts as a specialised treatment stage with biogas production.",

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T1 - Municipal wastewater treatment and associated bioenergy generation using anaerobic granular bed baffled reactor

AU - Tota-Maharaj, Kiran

AU - Akunna, Joseph

AU - Cheddie, Denver

PY - 2017/7/31

Y1 - 2017/7/31

N2 - This study assesses a modified anaerobic granular bed baffled reactor (GRABBR) which was assessed for municipal wastewater treatment at high organic loading rates (chemical oxygen demand ≥ 1,100 mg/l) under varying temperatures. For the two mesophilic temperatures tested (37⁰C and 25⁰C) under steady state conditions, the removal of Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD) was 80 to 90 %. At lower organic loadings, the reactor operated as a completely mixed system with most of the treatment occurring in the first two compartments. The GRABBR also showed very high solids retention with low effluent suspended solids concentration for all organic and hydraulic conditions. Applications of GRABBR as a single unit, two-phase treatment system could be an economical option reducing the cost to achieve similar treatment goals for high strength wastewaters. The findings of this research suggest that the application of GRABBR is suitable for the treatment of multiple pollutants present in wastewater where each compartment acts as a specialised treatment stage with biogas production.

AB - This study assesses a modified anaerobic granular bed baffled reactor (GRABBR) which was assessed for municipal wastewater treatment at high organic loading rates (chemical oxygen demand ≥ 1,100 mg/l) under varying temperatures. For the two mesophilic temperatures tested (37⁰C and 25⁰C) under steady state conditions, the removal of Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD) was 80 to 90 %. At lower organic loadings, the reactor operated as a completely mixed system with most of the treatment occurring in the first two compartments. The GRABBR also showed very high solids retention with low effluent suspended solids concentration for all organic and hydraulic conditions. Applications of GRABBR as a single unit, two-phase treatment system could be an economical option reducing the cost to achieve similar treatment goals for high strength wastewaters. The findings of this research suggest that the application of GRABBR is suitable for the treatment of multiple pollutants present in wastewater where each compartment acts as a specialised treatment stage with biogas production.

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JO - Journal of the Association of Professional Engineers of Trinidad & Tobago

JF - Journal of the Association of Professional Engineers of Trinidad & Tobago

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Municipal wastewater treatment and associated bioenergy generation using anaerobic granular bed baffled reactor

Abstract

UN SDGs

Keywords

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Joseph Akunna

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