کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8101297 | 1522115 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of biochar amendment on greenhouse gas emission and bio-availability of heavy metals during sewage sludge co-composting
ترجمه فارسی عنوان
اثر تغییرات زیست محیطی در انتشار گازهای گلخانه ای و در دسترس بودن فلزات سنگین در زمان کمپوست کردن لجن فاضلاب
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
In the present study, we evaluated the feasibility of biochar amended with lime (BÂ +Â L) to reduce the loss of ammonia, greenhouse gas (GHG) emissions and the bio-availability of heavy metals (HMs) during composting of dewatered fresh sewage sludge (DFSS) and to improve the end product quality. Biochar mixed with a low dosage of lime was supplemented at a 1:1 ratio into DFSS and wheat straw (dry weight basis), and compared with a lime only amendment and a control without any amendment. The CO2 emission profile clearly indicated that the BÂ +Â L addition was effectively buffered a pH â¼8.0, and the BÂ +Â L amendment experienced an enhanced the rate of decomposition compared to control and lime amended treatments. In aerobic co-composting, the BÂ +Â L amendment effectively reduced the loss of ammonia, CH4, and N2O emission. BÂ +Â L amended DFSS compost also showed significantly higher concentrations of humic-acid (17.23%) and fulvic-acid (3.79%) compounds, effectively reduced the bio-availability of HMs (34.81% Cu, 56.74% Zn, 87.96% Pb and 86.65% Ni) and improved compost maturity compared to control and lime amendments. Furthermore, the BÂ +Â L amendment increased the adsorption of ammonium ions by reducing the ammonia loss and N2O emission, resulting in compost with higher nutrient concentrations. These results can be used to formulate the initial feedstock for industrial scale composting processes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cleaner Production - Volume 135, 1 November 2016, Pages 829-835
Journal: Journal of Cleaner Production - Volume 135, 1 November 2016, Pages 829-835
نویسندگان
Mukesh Kumar Awasthi, Quan Wang, Hui Huang, Ronghua Li, Feng Shen, Altaf Hussain Lahori, Ping Wang, Di Guo, Zhanyu Guo, Shuncheng Jiang, Zengqiang Zhang,