Suitability assessment for handling methods of municipal solid waste
سال انتشار: 1397
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 410
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شناسه ملی سند علمی:
JR_GJESM-4-2_001
تاریخ نمایه سازی: 27 مرداد 1397
چکیده مقاله:
Solid waste management is challenging in Phnom Penh city, Capital of Cambodia. The onlyone formal treatment taken is the final disposal of mixed waste into an open dumpsite. The current studyanalyses the physical and chemical characteristics of municipal solid waste disposed of in the dumpsiteto assess their suitable handling methods. The current study found that the major compositions of wasteare food waste (49.18%) and plastic (21.13%), and recyclable waste shares about 17.28% of the total. Onaverage, it contains 60.92% moisture, 35.89% combustible, 3.19% ash, 58.32% carbon and 1.05% nitrogen.High calorific value is 10.03 MJ/kg when the low calorific value is 7.77 MJ/kg. The moisture content is toohigh to meet the technology demands, especially in the rainy season. It seems workable for incinerationwithout energy recovery. Gasification for melting and incineration with energy recovery are only suitablefor the dry season. If the solid waste is well pre-separated, material recovery could be one of the suitablehandling methods. Food waste, wood and leave could be digested in the one-stage continuous wet systemand co-composted, and plastic is appropriate for refuse-derived fuel generation. The study recommends thatthe waste pre-separation should be requisite for any handling methods.
کلیدواژه ها:
نویسندگان
B Seng
Graduate School of Environmental and Life Science, Okayama University, ۳-۱-۱ Tsushima, Kita, Okayama ۷۰۰-۸۵۳۰, Japan
T Fujiwara
Waste Management Research Center, Okayama University, ۳-۱-۱ Tsushima, Kita, Okayama ۷۰۰-۸۵۳۰, Japan
B Seng
Department of Rural Engineering, Institute of Technologies of Cambodia, Russian Federation Blvd, Phnom Penh, Cambodia