کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11029952 | 1646403 | 2018 | 45 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Qualitative and quantitative correlation of physicochemical characteristics and lead sorption behaviors of crop residue-derived chars
ترجمه فارسی عنوان
همبستگی کیفی و کمی از خصوصیات فیزیکوشیمیایی و رفتار جذب سرب از ارقام حاصل از محصول
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
This study investigated the key physicochemical characteristics of char that control its ability to absorb Pb2+. Three type of crop residue-derived chars and their ball milled powder were characterized using multiple approaches. The Pb2+ sorption mechanisms of biochar were caused mainly by coprecipitation reactions, which were governed by ionic minerals on chars instead of mineral crystallization (e.g., SiO2 and Al2O3), while coprecipitation reactions and Ï electronic interaction were the dominant mechanisms of activated carbon. Pearson analysis showed that adsorption quantity (Q) highly correlated with the cation exchange capacity (CEC) (Pâ¯<â¯0.01)/oxygen functional groups (OFGs) (Pâ¯<â¯0.05) and Q closely correlated with coprecipitation amount (Pâ¯<â¯0.01)/complexation amount (Pâ¯<â¯0.01). Linear regression equations of sorption amount and CEC (R2â¯ï¼â¯0.8)/OFGs (R2â¯ï¼â¯0.7) were established. CEC and OFGs of chars are the key factors controlled Pb2+ sorption. These results may promote the development of low-cost, engineered biochar with superior sorption qualities for environmental remediation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 270, December 2018, Pages 545-553
Journal: Bioresource Technology - Volume 270, December 2018, Pages 545-553
نویسندگان
Yanfei Li, Xian Liu, Peizhen Zhang, Xinlei Wang, Yaoyao Cao, Lujia Han,