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

48 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

Keywords

anaerobic upflow filter
attachment
performance
PVC
shear stress
sintered glass

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

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10.1016/0043-1354(94)90229-1

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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.

PY - 1994/7

Y1 - 1994/7

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.

KW - anaerobic upflow filter

KW - attachment

KW - performance

KW - PVC

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

Keywords

UN SDGs

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