Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Techno-economic and environmental assessment of sewage sludge wet oxidation |
| Abstract | Today, several technologies and management strategies are proposed and applied in wastewater treatment plants (WWTPs) to minimise sludge production and contamination. In order to avoid a shifting of burdens between different areas, their techno-economic and environmental performance has to be carefully evaluated. Wet oxidation (WO) is an alternative solution to incineration for recovering energy in sewage sludge while converting it to mostly inorganic residues. This paper deals with an experimentation carried out within the EU project " ROUTES" . A mass balance was made for a WWTP (500,000 person equivalents) in which a WO stage for sludge minimisation was considered to be installed. Both bench- and full-scale test results were used. Design of treatment units and estimation of capital and operational costs were then performed. Subsequently, technical and economic aspects were evaluated by means of a detailed methodology which was developed within the ROUTES project. Finally, an assessment of environmental impacts from a life cycle perspective was performed. The integrated assessment showed that for the specific upgrade considered in this study, WO technology, although requiring a certain increase of technical complexity at the WWTP, may contribute to environmental and economic advantages. The paper provides guidance in terms of which aspects need a more thorough evaluation in relation to the specific case in which an upgrade with WO is considered. © 2014 Springer-Verlag Berlin Heidelberg. |
| Source | Environmental science and pollution research international 22, pp. 7327–7338 |
| Keywords | Anaerobic digestionCostsFeasibilityLCAMass balanceTechnical issuesWastewater treatmentWet oxidation |
| Journal | Environmental science and pollution research international |
| Editor | Springer, Berlin, Germania |
| Year | 2015 |
| Type | Articolo in rivista |
| DOI | 10.1007/s11356-014-3378-6 |
| Authors | Bertanza, Giorgio; Canato, Matteo; Heimersson, Sara; Laera, Giuseppe; Salvetti, Roberta; Slavik, Edoardo; Svanström, Magdalena |
| Text | 304570 2015 10.1007/s11356 014 3378 6 Scopus 2 s2.0 84905329324 ISI Web of Science WOS 000354486800016 Anaerobic digestion Costs Feasibility LCA Mass balance Technical issues Wastewater treatment Wet oxidation Techno economic and environmental assessment of sewage sludge wet oxidation Bertanza, Giorgio; Canato, Matteo; Heimersson, Sara; Laera, Giuseppe; Salvetti, Roberta; Slavik, Edoardo; Svanstrom, Magdalena Universita degli Studi di Brescia; Chalmers Tekniska Hogskola; Istituto di Ricerca sulle Acque, Italy; 3V GREEN EAGLE S.p.A. Today, several technologies and management strategies are proposed and applied in wastewater treatment plants WWTPs to minimise sludge production and contamination. In order to avoid a shifting of burdens between different areas, their techno economic and environmental performance has to be carefully evaluated. Wet oxidation WO is an alternative solution to incineration for recovering energy in sewage sludge while converting it to mostly inorganic residues. This paper deals with an experimentation carried out within the EU project ROUTES . A mass balance was made for a WWTP 500,000 person equivalents in which a WO stage for sludge minimisation was considered to be installed. Both bench and full scale test results were used. Design of treatment units and estimation of capital and operational costs were then performed. Subsequently, technical and economic aspects were evaluated by means of a detailed methodology which was developed within the ROUTES project. Finally, an assessment of environmental impacts from a life cycle perspective was performed. The integrated assessment showed that for the specific upgrade considered in this study, WO technology, although requiring a certain increase of technical complexity at the WWTP, may contribute to environmental and economic advantages. The paper provides guidance in terms of which aspects need a more thorough evaluation in relation to the specific case in which an upgrade with WO is considered. © 2014 Springer Verlag Berlin Heidelberg. 22 Published version https //doi.org/10.1007/s11356 014 3378 6 2015 ESPR 22, 7327 7338 Bertanza et al WO Versione finale pubblicata dall Editore 2015 ESPR 22, 7327 7338 Bertanza et al WO.pdf Articolo in rivista Springer 0944 1344 Environmental science and pollution research international Environmental science and pollution research international Environ. sci. pollut. res. int. Environmental science and pollution research international. Environmental science and pollution research international Print Environmental science and pollution research Print ESPR Print giuseppe.laera LAERA GIUSEPPE ROUTES Novel processing routes for effective sewage sludge management TA.P07.002.004 Processi biotecnologici e processi a membrana TA.P07.001.004 Trattamenti per il riutilizzo e per lo smaltimento dei fanghi di depurazione |