Abstract
In this study, the floating hood technique for gas collection has been coupled with the off-gas method to monitor greenhouse gas emissions from the chlorination unit in a municipal water resource recovery facility located in Italy. Experimental measurements of direct nitrous oxide (N2O) from chlorination step were performed in order to investigate the contribution of this unit on the net carbon footprint. Interesting results were found on the chlorination unit which proved to be the major contributor to direct N2O emissions, due to the chemical interaction between hydroxylamine and the disinfectant agent (i.e. hypochlorite). For the first time, we measured for the chlorination unit a specific emission factor of 0.008 kgCO2,eq \( {\text{kg}}_{\text{bCOD}}^{ - 1} \), proving the innovativeness of our findings.
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References
Caivano M, Bellandi G, Mancini IM, Masi S, Brienza R, Panariello S, Gori R, Caniani D (2016) Monitoring the aeration efficiency and carbon footprint of a medium-sized WWTP: experimental results on oxidation tank and aerobic digester. Environ Technol 11(6):1–10
Caniani D, Esposito G, Gori R, Mannina G (2015) Towards a new decision support system for design, management and operation of wastewater treatment plants for the reduction of greenhouse gases emission. Water 7(10):5599–5616
Chandran K (2011) Protocol for the measurement of nitrous oxide fluxes from biological wastewater treatment plants. Methods Enzymol 486:369–385 Chap. 16
Ni B, Peng L, Law Y, Guo J, Yuan Z (2014) Modeling of nitrous oxide production by autotrophic ammonia- oxidizing bacteria with multiple production pathways. Environ Sci Technol 48(7):3916–3924
Pascale R, Caivano M, Buchicchio A, Mancini IM, Bianco G, Caniani D (2017) Validation of an analytical method for simultaneous high-precision measurements of greenhouse gas emissions from wastewater treatment plants using a gas chromatography-barrier discharge detector system. J Chromatogr A 1480:62–69
Pocquet M, Wu Z, Queinnec I, Spérandio M (2016) A two pathway model for N2O emissions by ammonium oxidizing bacteria supported by the NO/N2O variation. Water Res 88(1):948–959
Redmon D, Boyle WC, Ewing L (1983) Oxygen transfer efficiency measurements in mixed liquor using off-gas techniques. Water Pollut Control Fed 55(11):1338–1347
Seike Y, Fukumori R, Senga Y, Oka H, Fujinaga K, Okumura M (2004) A simple and sensitive method for the determination of hydroxylamine in fresh-water samples using hypochlorite followed by gas chromatography. Anal Sci 20(1):139–142
Acknowledgments
This research was funded by the Italian Ministry of Education, University and Research (MIUR) through the Research project of national interest PRIN2012 (D.M. 28 dicembre 2012 n. 957/Ric—Prot. 2012PTZAMC) entitled “Energy consumption and GreenHouse Gas (GHG) emissions in the wastewater treatment plants: a decision support system for planning and management” in which Donatella Canianiis the coordinator of the University of Basilicata research unit. Part of this research was carried out in the framework of the project ‘Smart Basilicata’ (Contract n. 6386 - 3, 20 July 2016). Smart Basilicata was approved by the Italian Ministry of Education, University and Research (Notice MIUR n. 84/Ric 2012, PON 2007–2013 of 2 March 2012) and was funded with the Cohesion Fund 2007–2013 of the Basilicata Regional authority.
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Caivano, M., Pascale, R., Mazzone, G., Masi, S., Panariello, S., Caniani, D. (2017). Disinfection Unit of Water Resource Recovery Facilities: Critical Issue for N2O Emission. In: Mannina, G. (eds) Frontiers in Wastewater Treatment and Modelling. FICWTM 2017. Lecture Notes in Civil Engineering , vol 4. Springer, Cham. https://doi.org/10.1007/978-3-319-58421-8_70
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DOI: https://doi.org/10.1007/978-3-319-58421-8_70
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