کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8093976 | 1522058 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Turning municipal solid waste incineration into a cleaner cement production
ترجمه فارسی عنوان
تبدیل سموم دفع زباله های جامد شهری به تولید سیمان پاک کننده
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
The incineration of Municipal Solid Wastes (MSW) presents the added advantage of recovering energy from the wastes' residual calorific content. However, the process also generates by-products of ash and carbon emissions. This study evaluates the feasibility of using the outputs of energy, ash, and carbon dioxide in the making of a cementing material through novel steps tailored to allow replicating the process within an incinerator facility. The cementing material was synthesized using more than 85% ash residues and a clinkering temperature of 1000â¯Â°C, congruous to the operating conditions of a typical incinerator. Cement so produced is cleaner than traditional Portland cement for not being intensive in resource, energy and carbon footprints. It exhibited no hydraulicity but could be rapidly activated by carbon dioxide. Benched against Portland cement, paste specimens recorded an average compressive strength of 53â¯MPa and a CO2 sequestering uptake of 6.7â¯wt. % after undergoing only 2â¯h of carbonation activation. Mineral analyses identified the active cementing components to be chloro-ellestadite (Ca10(SiO4)3(SO4)3Cl2) and belite (Ca2SiO4), which upon reacting with CO2 rapidly formed a hardened binding matrix. Standardized leaching tests deemed the clinker product stable. This work presents first step of a broader scope to ultimately turn MSW incineration into a cleaner cement production, where locally-sourced heat, ash, and emitted CO2 can be used to generate products for building applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cleaner Production - Volume 195, 10 September 2018, Pages 268-279
Journal: Journal of Cleaner Production - Volume 195, 10 September 2018, Pages 268-279
نویسندگان
Zaid Ghouleh, Yixin Shao,