The role of filter media in removing suspended and colloidal particles in an anaerobic reactor treating domestic sewage

被引：40
作者：
Elmitwalli, TA [1 ]
van Dun, M [1 ]
Bruning, H [1 ]
Zeeman, G [1 ]
Lettinga, G [1 ]
机构：
[1] Agr Univ Wageningen, Dept Agr Environm & Syst Technol, Sub Dept Environm Technol, NL-6700 EV Wageningen, Netherlands
来源：
BIORESOURCE TECHNOLOGY | 2000年 / 72卷 / 03期
关键词：
anaerobic treatment; domestic sewage; suspended solids; colloidal particles; polyurethane filter;
D O I：
10.1016/S0960-8524(99)00120-0
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
A column packed with clean sheets of reticulated polyurethane foam was fed with either raw sewage, synthetic sewage or skimmed milk for a short time to evaluate the mechanism of physical entrapment and filtration of particles. The results revealed that clean media were effective in the removal of suspended chemical oxygen demand (COD) (>75%) even with hydraulic retention time (HRT) as low as 0.5 h or upflow velocity as high as 10 m/h. However, the removal of colloidal COD remained poor under all experimental conditions. The treatment of raw sewage and paper-filtered sewage in a fed-batch recirculation system under anaerobic conditions resulted in average removal efficiencies for colloidal COD of 63% and 81%, respectively at a temperature of 24 +/- 1 degrees C. Therefore, the presence of an anaerobic biofilm and the removal of suspended solids (SS) from the influent increased the removal efficiency of colloidal COD in the treatment of domestic sewage in an anaerobic polyurethane-foam filter. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：235 / 242
页数：8
相关论文
共 27 条
  • [1] COMPARISON OF POROUS AND NONPOROUS MEDIA IN UPFLOW ANAEROBIC FILTERS WHEN TREATING DAIRY WASTE-WATER
    ANDERSON, GK
    KASAPGIL, B
    INCE, O
    [J]. WATER RESEARCH, 1994, 28 (07) : 1619 - 1624
  • [2] [Anonymous], WASTEWATER TREATMENT, DOI DOI 10.1016/j.apm.2007.09.009
  • [3] deSousa JT, 1996, WATER SCI TECHNOL, V33, P73, DOI 10.1016/0273-1223(96)00323-X
  • [4] Dugan P. R., 1987, FLOCCULATION BIOTECH, P337
  • [5] Low temperature treatment of domestic sewage in upflow anaerobic sludge blanket and anaerobic hybrid reactors
    Elmitwalli, TA
    Zandvoort, MH
    Zeeman, G
    Bruning, H
    Lettinga, G
    [J]. WATER SCIENCE AND TECHNOLOGY, 1999, 39 (05) : 177 - 185
  • [6] FACTORS AFFECTING THE COLONIZATION OF NON POROUS AND POROUS PACKING MATERIALS IN MODEL UPFLOW METHANE REACTORS
    HUYSMAN, P
    VANMEENEN, P
    VANASSCHE, P
    VERSTRAETE, W
    [J]. BIOTECHNOLOGY LETTERS, 1983, 5 (09) : 643 - 648
  • [7] JEWELL WJ, 1985, P SEMINAR WORKSHOP A, P17
  • [8] MICRO SEMIAUTOMATED ANALYSIS OF SURFACE AND WASTEWATERS FOR CHEMICAL OXYGEN DEMAND
    JIRKA, AM
    CARTER, MJ
    [J]. ANALYTICAL CHEMISTRY, 1975, 47 (08) : 1397 - 1402
  • [9] ANAEROBIC WASTE-WATER TREATMENT IN DOWNFLOW STATIONARY FIXED FILM REACTORS
    KENNEDY, KJ
    DROSTE, RL
    [J]. WATER SCIENCE AND TECHNOLOGY, 1991, 24 (08) : 157 - 177
  • [10] Lettinga G, 1996, WATER SCI TECHNOL, V33, P85, DOI 10.1016/0273-1223(96)00303-4
123