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In low carbon waste landfills the availability of water or a carbon source, or the
build up of toxic compounds appears to limit anaerobic gas generation. Thus oxygen consuming
chemical/biological reactions occur immediately after the waste is placed, but factors required
for anaerobic degradation become exhausted, perhaps because of limited permeability that also
appears to be a feature of this waste. Oxygen and its reaction products, principally carbon
dioxide, are removed by phase change from the gas filled pore space of the waste. This results in
the proportion of nitrogen in the pore gas rising to more than the 80% typical of atmospheric
composition. Nitrogen gas enrichment through oxygen removal can mean either negative
pressure within the landfill, or slow air ingress into the waste. New gas management and
monitoring techniques at such sites should reflect this different conceptual model.
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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.