Comparison of porous and non-porous media in upflow anaerobic filters when treating dairy wastewater

G. K. Anderson; B. Kasapgil; O. Ince

doi:10.1016/0043-1354(94)90229-1

Comparison of porous and non-porous media in upflow anaerobic filters when treating dairy wastewater

G. K. Anderson^*
, B. Kasapgil
, O. Ince

^*Corresponding author for this work

Newcastle University

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

49 Citations (Scopus)

Abstract

The performance of porous and non-porous media in two mesophilic anaerobic upflow filters treating a wastewater from a milk bottling factory was investigated. The results indicated that at higher OLRs the porous media had a much better performance. The reactor with non-porous packing showed instability above an OLR of 4 kg COD/m³ ·d whereas the reactor with the porous packing was still stable at OLRs of up to 21 kg COD/m³ ·d. The behaviour of the media and biomass wash-out were observed at high upflow velocities (UV) and results demonstrated that porous media was not as susceptible to shear stresses as non-porous media. At the end of the investigation, attachment studies were carried out and the results showed a heavy biomass attachment in the porous media, whereas mainly unattached biomass was retained in the voids of the non-porous media.

Original language	English
Pages (from-to)	1619-1624
Number of pages	6
Journal	Water Research
Volume	28
Issue number	7
DOIs	https://doi.org/10.1016/0043-1354(94)90229-1
Publication status	Published - Jul 1994
Externally published	Yes

Funding

Acknowledgements--The authors would like to acknowledge the support of the University of Newcastle upon Tyne, in particular the Environmental Engineering Group which has allowed the use of its facilities for this study. Bahar Kasapgil would like to acknowledge the Turkish Ministry of Education and Sport for financial support and express her gratitude to the Middle East Technical University for encouragement throughout these studies. Orhan Inee would also like to express his deep gratitude to the Istanbul Technical University, Department of Environmental Engineering for their full support.

Funders
Ministry of Sports and Education

UN SDGs

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

SDG 6 Clean Water and Sanitation

Keywords

PVC
anaerobic upflow filter
attachment
performance
shear stress
sintered glass

Access to Document

10.1016/0043-1354(94)90229-1

Cite this

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title = "Comparison of porous and non-porous media in upflow anaerobic filters when treating dairy wastewater",

abstract = "The performance of porous and non-porous media in two mesophilic anaerobic upflow filters treating a wastewater from a milk bottling factory was investigated. The results indicated that at higher OLRs the porous media had a much better performance. The reactor with non-porous packing showed instability above an OLR of 4 kg COD/m3 ·d whereas the reactor with the porous packing was still stable at OLRs of up to 21 kg COD/m3 ·d. The behaviour of the media and biomass wash-out were observed at high upflow velocities (UV) and results demonstrated that porous media was not as susceptible to shear stresses as non-porous media. At the end of the investigation, attachment studies were carried out and the results showed a heavy biomass attachment in the porous media, whereas mainly unattached biomass was retained in the voids of the non-porous media.",

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AU - Anderson, G. K.

AU - Kasapgil, B.

AU - Ince, O.

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N2 - The performance of porous and non-porous media in two mesophilic anaerobic upflow filters treating a wastewater from a milk bottling factory was investigated. The results indicated that at higher OLRs the porous media had a much better performance. The reactor with non-porous packing showed instability above an OLR of 4 kg COD/m3 ·d whereas the reactor with the porous packing was still stable at OLRs of up to 21 kg COD/m3 ·d. The behaviour of the media and biomass wash-out were observed at high upflow velocities (UV) and results demonstrated that porous media was not as susceptible to shear stresses as non-porous media. At the end of the investigation, attachment studies were carried out and the results showed a heavy biomass attachment in the porous media, whereas mainly unattached biomass was retained in the voids of the non-porous media.

AB - The performance of porous and non-porous media in two mesophilic anaerobic upflow filters treating a wastewater from a milk bottling factory was investigated. The results indicated that at higher OLRs the porous media had a much better performance. The reactor with non-porous packing showed instability above an OLR of 4 kg COD/m3 ·d whereas the reactor with the porous packing was still stable at OLRs of up to 21 kg COD/m3 ·d. The behaviour of the media and biomass wash-out were observed at high upflow velocities (UV) and results demonstrated that porous media was not as susceptible to shear stresses as non-porous media. At the end of the investigation, attachment studies were carried out and the results showed a heavy biomass attachment in the porous media, whereas mainly unattached biomass was retained in the voids of the non-porous media.

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KW - attachment

KW - performance

KW - shear stress

KW - sintered glass

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Comparison of porous and non-porous media in upflow anaerobic filters when treating dairy wastewater

Abstract

Funding

UN SDGs

Keywords

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