期刊
WATER SCIENCE AND TECHNOLOGY
卷 64, 期 1, 页码 1-6出版社
IWA PUBLISHING
DOI: 10.2166/wst.2011.625
关键词
energy optimisation; energy saving; energy self-sufficiency; municipal wastewater treatment
In Austria, two municipal WWTPs (the Strass TP and Wolfgangsee-Ischl TP) operated with nutrient removal and aerobic sludge digestion are now energy self-sufficient. This is the result of a long-standing and on-going optimisation process at both plants including optimal aeration control and control of the aerobic section of the aeration tank to optimise denitrification and prevent degradation of particulate organic matter that should be degraded in the digester. Both TPs are now equipped with energy-efficient CHP units. However, it is maybe more sustainable to use the biogas as bio-methane/bio-fuel than in conventional CHP at the WWTP. It is shown that energy self-sufficiency should be in reach at other municipal WWTPs, too.
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