Suchergebnisse

AbstractThe water and wastewater industry has been tasked with reducing its greenhouse gas (or carbon) emissions. A key component of any emissions reduction strategy is emissions measurement. While operational emissions are reported by the sector on an annual basis, there is a lack of robust data on embodied carbon. The aim of this paper was to develop a practical solution for assessing the embodied carbon in wastewater assets. The analysis revealed a linear relationship between carbon emissions and capital investment in the construction of wastewater treatment works (1.3 tCO2/£1000) and wastewater pumping stations (0.3 tCO2/£1000). Carbon emissions from sewer construction were found to increase linearly with increasing pipe diameter, with ductile iron pipelines responsible for higher emissions than polyethylene. Operational carbon is the major component in the whole life carbon of wastewater treatment works, but future decarbonisation of the electricity grid may increase the relative importance of embodied carbon.

This special issue of Renewable and Sustainable Energy Reviews is devoted to the research presented and discussed at the 10th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES) held from the 27th September to the 2nd October 2, 2015 in Dubrovnik, Croatia. The contents are in in keeping with the aims and scope of the journal which is to bring together under one roof the current advances in the ever broadening field of renewable and sustainable energy. The articles published in this special issue review, discuss and examine energy resources and technologies (e.g. biomass, hydropower, solar, geothermal and wind), applications and services (e.g. buildings, industry, electricity and transport) and policy and the environment (e.g. economic, emissions, politics, energy planning, social aspects) within the framework of sustainable development. A total of 35 extended manuscripts were invited by the guest editors of this special to submit candidate articles for consideration for publication in Renewable and Sustainable Energy Reviews. After a vigorous review process by expert reviewers overseen by the guest editors a total of 22 articles were accepted for publication.