COMPARISON OF POROUS AND NONPOROUS MEDIA IN UPFLOW ANAEROBIC FILTERS WHEN TREATING DAIRY WASTE-WATER

被引：37

作者：

ANDERSON, GK

KASAPGIL, B

INCE, O

机构：

[1] Department of Civil Engineering, University of Newcastle upon Tyne, Newcastle upon Tyne

来源：

WATER RESEARCH | 1994年 / 28卷 / 07期

关键词：

SINTERED GLASS; PVC; ANAEROBIC UPFLOW FILTER; PERFORMANCE; SHEAR STRESS; ATTACHMENT;

D O I：

10.1016/0043-1354(94)90229-1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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/m(3).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.

引用

页码：1619 / 1624

页数：6

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