Potential energy production from anaerobic digestion of dairy wastewater

Orhan Ince

doi:10.1080/10934529809376784

Potential energy production from anaerobic digestion of dairy wastewater

Orhan Ince^*

^*Corresponding author for this work

Department of Environmental Engineering

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

28 Citations (Scopus)

Abstract

The performance of a pilot-scale upflow anaerobic filter (UFAF) treating a dairy wastewater was studied for a period of 3 months. Results showed that the UFAF system achieved over 85% chemical oxygen demand (COD) and 90% biological oxygen demand (BOD₅) removal efficiencies at an organic loading rate (OLR) of 6 kg COD/m³.d with a hydraulic retention time (HRT) of 20 hours. Percent methane in the biogas produced in the UFAF was found to be in a range of 75%-85% with the corresponding methane yield of 0.32-0.34 m³ CH₄/kg COD removed. The system produced approximately 770 liters CH₄/day. This would maintain all energy requirements of the feed and recirculation pumps and mixing. Approximately 35% of the energy requirement for maintaining the desired temperature of the pilot-scale anaerobic filter column would also be recovered.

Original language	English
Pages (from-to)	1219-1228
Number of pages	10
Journal	Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Volume	33
Issue number	6
DOIs	https://doi.org/10.1080/10934529809376784
Publication status	Published - 1998

Keywords

Anaerobic digestion
Dairy wastewater
Energy recovery
Methane yield
Upflow anaerobic filter

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10.1080/10934529809376784

Cite this

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abstract = "The performance of a pilot-scale upflow anaerobic filter (UFAF) treating a dairy wastewater was studied for a period of 3 months. Results showed that the UFAF system achieved over 85% chemical oxygen demand (COD) and 90% biological oxygen demand (BOD5) removal efficiencies at an organic loading rate (OLR) of 6 kg COD/m3.d with a hydraulic retention time (HRT) of 20 hours. Percent methane in the biogas produced in the UFAF was found to be in a range of 75%-85% with the corresponding methane yield of 0.32-0.34 m3 CH4/kg COD removed. The system produced approximately 770 liters CH4/day. This would maintain all energy requirements of the feed and recirculation pumps and mixing. Approximately 35% of the energy requirement for maintaining the desired temperature of the pilot-scale anaerobic filter column would also be recovered.",

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AB - The performance of a pilot-scale upflow anaerobic filter (UFAF) treating a dairy wastewater was studied for a period of 3 months. Results showed that the UFAF system achieved over 85% chemical oxygen demand (COD) and 90% biological oxygen demand (BOD5) removal efficiencies at an organic loading rate (OLR) of 6 kg COD/m3.d with a hydraulic retention time (HRT) of 20 hours. Percent methane in the biogas produced in the UFAF was found to be in a range of 75%-85% with the corresponding methane yield of 0.32-0.34 m3 CH4/kg COD removed. The system produced approximately 770 liters CH4/day. This would maintain all energy requirements of the feed and recirculation pumps and mixing. Approximately 35% of the energy requirement for maintaining the desired temperature of the pilot-scale anaerobic filter column would also be recovered.

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KW - Energy recovery

KW - Methane yield

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Potential energy production from anaerobic digestion of dairy wastewater

Abstract

Keywords

UN SDGs

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