Performance of wastewater treatment plants in emission of greenhouse gases

被引:11
作者
Ranieri, Ezio [1 ]
D'Onghia, Gianfranco [1 ]
Ranieri, Francesca [2 ]
Lopopolo, Luigi [1 ]
Gregorio, Sarah [1 ]
Ranieri, Ada Cristina [3 ,4 ]
机构
[1] Univ Bari, Dipartimento Biosci Biotecnol & Ambiente, Bari, Italy
[2] Univ Foggia, Dipartimento Econ Management & Terr, Foggia, Italy
[3] Politecn Bari, Dipartimento Interateneo Fis, Bari, Italy
[4] Univ Int Telemat Uninettuno, Rome, Italy
关键词
Mass balance; Nitrous oxide; Methane; Carbon dioxide; Emissions; BIOLOGICAL NUTRIENT REMOVAL; NITROUS-OXIDE EMISSIONS; METHANE EMISSIONS; ENERGY-CONSUMPTION; MUNICIPAL; FACILITIES; GENERATION; BALANCES; MASS; N2O;
D O I
10.1016/j.biortech.2024.130897
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
The present work has estimated greenhouse gas emissions in aerobic and anaerobic Wastewater Treatment Plants in Southern Italy. Greenhouse gases emissions from each treatment unit were calculated based on emission factors related to Chemical Oxygen Demand removal for biogenic CO2 and CH4 assessment and on Nitrogen removal for N2O. N2O, biogenic CO2, and CH4 emissions vary for aerobic and anaerobic-based WWTPs respectively from 73 kgCO2eq/PE*y for anaerobic plants to 91 kgCO2eq/PE*y for aerobic plants. In aerobic and anaerobic digestion systems WWTPs the contributions to CO2eq total emissions from N2O, CH4, biogenic CO2, and fossil CO2 are 30 %-33 %, 20 %-29 %, 22 %-25 %, and 26 %-16 %, respectively. N2O emissions from biological processes were found the most contributing sources of greenhouse gases while in the physical processes higher contribution is indirect carbon dioxide related to energy consumption. Compensatory measures are reported to reduce greenhouse gases emissions.
引用
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页数:9
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