METHANE GENERATION POTENTIAL AND BIODEGRADABILITY OF MSW COMPONENTS

As an important parameter for estimation of methane generation from landfills, we
measured ultimate methane yields (M0
VS) of various municipal solid waste (MSW) components,
which were obtained by classifying bulk waste carried into S landfill in Korea. Food wastes
exhibited the highest M0
VS of 420mL CH4/g VS. Misc. organics, paper, textile, wood, sludge,
and leather showed M0
VS as high as 295, 285, 231, 213, 154, and 150mL CH4/g VS, respectively.
M0
VS of plastics and rubber was as low as 76 and 48mL CH4/g VS, respectively. For plastics and
rubber, which are known as nondegradable components, M0
VS was considered to result from
other degradable components intermixed during collection and transportation of bulk waste.
Food wastes and paper represented the highest biodegradability of around 70%. Misc. organics,
textile, and wood showed moderate biodegradability of around 50%. Biodegradability of sludge
and leather was in the range of 25-30%. Plastics and rubber showed almost no biodegradability
with the values less than 10%. Methane generation potential of bulk waste disposed at S landfill
in Korea was in the range of 37-88m3 CH4/Mg wet waste, and fraction of the degradable organic
carbon that can anaerobically decompose (DOCf) was estimated as 0.6 by considering waste
components except for plastics and rubber/leather.

Check Also

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.