Environmental impact analysis of chemicals and energy consumption in wastewater treatment plants: case study of Oslo, Norway

被引：31
作者：
Venkatesh, G. [1 ]
Brattebo, Helge [1 ]
机构：
[1] Norwegian Univ Sci & Technol, Ind Ecol Programme, Dept Hydraul & Environm Engn, NO-7491 Trondheim, Norway
来源：
WATER SCIENCE AND TECHNOLOGY | 2011年 / 63卷 / 05期
关键词：
acidification; chemicals; energy; environmental impacts; eutrophication; global warming; life cycle environmental analysis; wastewater treatment plants; MODEL;
D O I：
10.2166/wst.2011.284
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Wastewater treatment plants, while performing the important function of treating wastewater to meet the prescribed discharge standards, consume energy and a variety of chemicals. This paper analyses the consumption of energy and chemicals by wastewater treatment plants in Oslo over eight years, and their potential environmental impacts. Global warming and acidification were the dominant impacts for chemicals and energy, respectively. Avoided impacts due to usable by-products - sludge, ammonium nitrate and biogas - play a key role in shrinking the environmental footprint of the wastewater plants. The scope for decreasing this footprint by streamlining energy and chemicals consumption is limited, however, considering that over 70% of the impact is accounted for by the eutrophication potential (thanks to the nitrogen and phosphorus which is discharged to the sink) of the treated effluent wastewater.
引用
收藏
页码：1018 / 1031
页数：14
相关论文
共 27 条
  • [1] AASEBO K, 2009, COMMUNICATION SEP
  • [2] [Anonymous], 1997, Theory and practice of water and wastewater treatment
  • [3] BEVAS - Bekkelaget Vann AS Oslo Norway, 2007, ARSR BEKK RENS
  • [4] Environmental accounting - a decision support tool in WWTP operation and management
    Clauson-Kaas, J
    Poulsen, TS
    Jacobsen, BN
    Guildal, T
    Wenzel, H
    [J]. WATER SCIENCE AND TECHNOLOGY, 2001, 44 (2-3) : 25 - 30
  • [5] CML, 2002, CML 2001 IMP ASS MET
  • [6] Eastern Research Group Inc. & Energy and Environmental Analysis Inc., 2007, OPP BEN COMB HEAT PO
  • [7] Eckard R, 2008, J AM WATER WORKS ASS, V100, P135
  • [8] Reuse of heat energy in wastewater: implementation examples in Japan
    Funamizu, N
    Iida, M
    Sakakura, Y
    Takakuwa, T
    [J]. WATER SCIENCE AND TECHNOLOGY, 2001, 43 (10) : 277 - 285
  • [9] Life cycle analysis and sewer solids
    Gouda, H
    Ashley, RM
    Gilmour, D
    Smith, H
    [J]. WATER SCIENCE AND TECHNOLOGY, 2003, 47 (04) : 185 - 192
  • [10] Upgrading our inhibited urban water systems
    Harremoes, P
    [J]. WATER SCIENCE AND TECHNOLOGY, 1998, 37 (09) : 1 - 8
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