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RISS 인기검색어
- 검색키워드
- 저자 : Mohammed F. M. Abushammala (검색결과 3 건)
- 무료
- 기관 내 무료
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Biodrying of municipal solid waste under different ventilation periods
N. A. Ab Jalil,H. Basri,N. E. Ahmad Basri,Mohammed F. M. Abushammala 대한환경공학회 2016 Environmental Engineering Research Vol.21 No.2
Biodrying is a pre-treatment method that applies biological and mechanical concepts to drying solid waste. In Malaysia, municipal solid waste (MSW) is unseparated and contains a high level of moisture, making the use of technology such as solid waste burning unsuitable and harmful. MSW containing organic material can be processed naturally until the moisture content of the waste is reduced. This study on MSW biodrying was carried out on a laboratory scale to measure the percent moisture content reduction and to monitor temperature patterns under different ventilation periods. This work was conducted using five biodrying reactors volumes of 50 liters each. Reactors were ventilated for 5, 10, 15, 20 and 30 min every 3 h, with a 3 bar air supply. The duration of this process was 14 days for all samples. The results showed that the optimum ventilation time was 10 min, with an 81.84% reduction in moisture content, and that it required almost half of the electricity cost required for the 20 and 30 min ventilations.
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Methane Oxidation in Landfill Cover Soils: A Review
Mohammed F.M. Abushammala,Noor Ezlin Ahmad Basri,Dani Irwan,Mohammad K. Younes 한국대기환경학회 2014 Asian Journal of Atmospheric Environment (AJAE) Vol.8 No.1
Migration of methane (CH4) gas from landfills to thesurrounding environment negatively affects bothhumankind and the environment. It is thereforeessential to develop management techniques toreduce CH4 emissions from landfills to minimize globalwarming and to reduce the human risks associatedwith CH4 gas migration. Oxidation of CH4 in landfillcover soil is the most important strategy for CH4emissions mitigation. CH4 oxidation occurs naturallyin landfill cover soils due to the abundance of methanotrophicbacteria. However, the activities of thesebacteria are influenced by several controlling factors. This study attempts to review the important issuesassociated with the CH4 oxidation process in landfillcover soils. The CH4 oxidation process is highly sensitiveto environmental factors and cover soil properties. The comparison of various biotic system techniquesindicated that each technique has uniqueadvantages and disadvantages, and the choice ofthe best technique for a specific application dependson economic constraints, treatment efficiency andlandfill operations.
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Integrating approach to size and site at a sanitary landfill in Selangor state, Malaysia
Mohammad Khairi Younes,Noor Ezlin Ahmad Basri,Zulkifli Mohammad Nopiaha,Hassan Basri,Mohammed F. M. Abushammala,Khairul Nizam Abdul Maulud 대한환경공학회 2015 Environmental Engineering Research Vol.20 No.3
Solid waste production increases due to population and consumption increments. Landfill is the ultimate destination for all kinds of municipal solid waste; and is the most convenient waste disposal method in developing countries. To minimize investment and operational costs and society’s opposition towards locating landfills nearby, proper landfill sizing and siting are essential. In this study, solid waste forecasting using Autoregressive Integrating Moving Average (ARIMA) was integrated with government future plans and waste composition to estimate the required landfill area for the state of Selangor, Malaysia. Landfill siting criteria were then prioritized based on expert’s preferences. To minimize ambiguity and the uncertainty of the criteria prioritizing process, the expert’s preferences were treated using integrated Median Ranked Sample Set (MRSS) and Analytic Hierarchy Process (AHP) models. The results show that the required landfill area is 342 hectares and the environmental criteria are the most important; with a priority equal to 48%.
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