Effect of oxygen dosing point and mixing on the microaerobic removal of hydrogen sulphide in sludge digesters

被引：89
作者：
Diaz, I. [1 ]
Perez, S. I. [1 ]
Ferrero, E. M. [1 ]
Fdz-Polanco, M. [1 ]
机构：
[1] Univ Valladolid, Dept Chem Engn & Environm Technol, Escuela Ingn Ind, E-47011 Valladolid, Spain
来源：
BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 04期
关键词：
Biogas; Sulphide; Microaerobic; Sulphide-oxidising bacteria; Sludge digestion; ANAEROBIC-DIGESTION; HIGH-SULFATE; SULFUR-COMPOUNDS; WASTE-WATER; SP-NOV;
D O I：
10.1016/j.biortech.2010.12.016
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Limited oxygen supply to anaerobic sludge digesters to remove hydrogen sulphide from biogas was studied. Micro-oxygenation showed competitive performance to reduce considerably the additional equipment necessary to perform biogas desulphurization. Two pilot-plant digesters with an HRT of similar to 20 d were micro-oxygenated at a rate of 0.25 NL per L of feed sludge with a removal efficiency higher than 98%. The way of mixing (sludge or biogas recirculation) and the point of oxygen supply (headspace or liquid phase) played an important role on hydrogen sulphide oxidation. While micro-oxygenation with sludge recirculation removed only hydrogen sulphide from the biogas, dissolved sulphide was removed if micro-oxygenation was performed with biogas recirculation. Dosage in the headspace resulted in a more stable operation. The result of the hydrogen sulphide oxidation was mostly elemental sulphur, partially accumulated in the headspace of the digester, where different sulphide-oxidising bacteria were found. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3768 / 3775
页数：8
相关论文
共 31 条
  • [1] A review of biogas purification processes
    Abatzoglou, Nicolas
    Boivin, Steve
    [J]. BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR, 2009, 3 (01): : 42 - 71
  • [2] [Anonymous], BIOGAS WASTE RENEWAB
  • [3] Principles and potential of the anaerobic digestion of waste-activated sludge
    Appels, Lise
    Baeyens, Jan
    Degreve, Jan
    Dewil, Raf
    [J]. PROGRESS IN ENERGY AND COMBUSTION SCIENCE, 2008, 34 (06) : 755 - 781
  • [4] Clesceri L, 1998, STANDARD METHODS EXA
  • [5] Distribution of sulphur compounds in sewage sludge treatment
    Dewil, Raf
    Baeyens, Jan
    Roels, Joris
    Van de Steene, Boudewijn
    [J]. ENVIRONMENTAL ENGINEERING SCIENCE, 2008, 25 (06) : 879 - 886
  • [6] Performance evaluation of oxygen, air and nitrate for the microaerobic removal of hydrogen sulphide in biogas from sludge digestion
    Diaz, I.
    Lopes, A. C.
    Perez, S. I.
    Fdz-Polanco, M.
    [J]. BIORESOURCE TECHNOLOGY, 2010, 101 (20) : 7724 - 7730
  • [7] The effect of the supplementation with a primary carbon source on the resistance to oxygen exposure of methanogenic sludge
    Estrada-Vázquez, C
    Macarie, H
    Kato, MT
    Rodríguez-Vázquez, R
    Esparza-García, F
    Poggi-Varaldo, HM
    [J]. WATER SCIENCE AND TECHNOLOGY, 2003, 48 (06) : 119 - 124
  • [8] Hydrogen sulphide removal in the anaerobic digestion of sludge by micro-aerobic processes: pilot plant experience
    Fdz-Polanco, M.
    Diaz, I.
    Perez, S. I.
    Lopes, A. C.
    Fdz-Polanco, F.
    [J]. WATER SCIENCE AND TECHNOLOGY, 2009, 60 (12) : 3045 - 3050
  • [9] Fox P, 1996, WATER SCI TECHNOL, V34, P359, DOI 10.2166/wst.1996.0571
  • [10] Enhanced Biofiltration Using Cell Attachment Promotors
    Goncalves, Juan J.
    Govind, Rakesh
    [J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2009, 43 (04) : 1049 - 1054
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