کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6970073 1453042 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Chemical and ecotoxicological evaluation of biochar produced from residues of biogas production
ترجمه فارسی عنوان
ارزیابی شیمیایی و زیست توده زیستی از زیست باری که از بقایای تولید بیوگاز تولید می شود
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
چکیده انگلیسی
Analyses were carried out for biochars produced at three temperatures of pyrolysis (400, 600 and 800 °C) from solid residue from biogas production (RBP). Separated and non-separated RBP from biogas plants employing different biogas production conditions were pyrolyzed. The contents of heavy metals and polycyclic aromatic hydrocarbons (PAHs) (16 PAH US EPA) were analyzed in biochars. The analyses showed that with an increased pyrolysis temperature, there was an increase in the contents of PAHs and of certain heavy metals (Cr, Cu, Cd, Pb and Mn). In the ecotoxicological tests, it was noted that the effect depended on the temperature of pyrolysis and on the feedstock from which the biochar was produced. The least harmful effect on the test organisms was from biochar produced by separated RBP in a biogas plant operating in mesophilic conditions. The most negative effect on the test organisms was characteristic of biochar produced from non-separated mesophilic RBP. This study shows that the main factors determining the level of toxicity of biochars produced from RBP towards various living organisms are both the method of feedstock production and the temperature at which the process of pyrolysis is conducted.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 318, 15 November 2016, Pages 417-424
نویسندگان
, , ,