Web-Resol Tudo sobre Limpeza Urbana e Resíduos Sólidos!
The present study is concerned with the economic and environmental evaluation of
landfill gas exploitation system in reference to an existing study case landfill, located in Tuscany
Region (Italy). Landfill gas production, during the different life phases of the study case landfill,
has been predicted according to a mathematical model, based on first-order decay equation,
considering different behaviours for different types of biodegradable wastes. On the basis of the
landfill gas collected yearly it is possible to estimate the appropriate size and number of
reciprocating engines required every year for the landfill gas exploitation. As a matter of fact,
during the energy recovery time, different combinations of engine sizes and numbers can be
adopted to exploit the landfill gas: the selection of the final combination was carried out with the
aim of maximising the profits coming from the balance of energy system investment and
maintenance costs and electric energy selling earnings. Two scenarios were compared from an
economic point of view, highlighting the one with the maximum economic profits. The scenarios
were also compared from an environmental point of view, evaluating the overall contribution to
Greenhouse Effect from escaped landfill gas, collected and combusted landfill gas and recovered
electric energy avoided emissions.
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Egypt reviews Red Sea waste management system – Dailynewsegypt
Egypt’s Minister of Local Development and Environment, Manal Awad, and Red Sea Governor Walid El-Barqi held an extensive meeting to review the performance of the governorate’s waste management system and discuss measures to improve environmental services and operational efficiency. The meeting, held during Awad’s visit to the Red Sea Governorate to mark World Environment Day, focused on assessing current challenges facing waste collection, sorting, recycling and disposal operations, as well as identifying priority actions to strengthen the system’s performance. Awad stressed that the government places significant importance on developing an integrated waste management system in the Red Sea Governorate, given its strategic importance as one of Egypt’s leading tourism destinations. She emphasized the need to comply with environmental and technical standards governing sanitary landfills, waste treatment facilities and environmentally sound disposal practices. During the meeting, officials reviewed the current status of waste management operations in Hurghada, including collection, transportation, sorting, recycling and final disposal activities. Discussions also covered the infrastructure upgrades required to improve system efficiency and ensure the proper operation of sanitary landfill facilities. Yasser Abdullah, head of Egypt’s Waste Management Regulatory Authority, presented updates on temporary waste collection and sorting sites and outlined measures to strengthen operational management and oversight. He highlighted the importance of improving monitoring mechanisms for waste handling activities and maximizing the recovery of recyclable materials while reducing informal and unregulated practices.