کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6308580 | 1618860 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of mixture ratio and pH to solidification/stabilization process of hospital solid waste incineration ash in Portland cement
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of mixture ratio and pH to solidification/stabilization process of hospital solid waste incineration ash in Portland cement Influence of mixture ratio and pH to solidification/stabilization process of hospital solid waste incineration ash in Portland cement](/preview/png/6308580.png)
چکیده انگلیسی
Solidification/stabilization (S/S) is an established utilization technology to treat hazardous wastes. This research explored the influence of pH (3-12) on the immobilization of heavy metals present in five mixtures of hospital solid waste incinerator ash and Portland cement, following two different processes of waste solidification/stabilization (cement hydration and granulation). In general, cement hydration process resulted in more stable products than granulation process. A high ash content in the mixture with Portland cement (60Â wt%) resulted in the highest immobilization of Pb2+ and Cu2+, while a low ash content in the mixture (10Â wt%) resulted in the lowest leachability of Zn2+. When ash and Portland cement was mixed in equal proportions (50Â wt%) the highest encapsulation was observed for Ni2+, Cd2+ and Cr3+. Neutral and weak alkaline pH values within the range pHÂ =Â 7-8 resulted in the lowest leachability of the monitored heavy metals.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 111, September 2014, Pages 18-23
Journal: Chemosphere - Volume 111, September 2014, Pages 18-23
نویسندگان
Elzbieta Sobiecka, Andrzej Obraniak, Blanca Antizar-Ladislao,