کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11024465 | 1701154 | 2019 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrothermal conversion of sewage sludge: Focusing on the characterization of liquid products and their methane yields
ترجمه فارسی عنوان
تبدیل هیدروترمال لجن فاضلاب: تمرکز بر خصوصیات محصولات مایع و میزان تولید متان آنها
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
The conversion of dewatered sewage sludge (DSS) into bio-oil and hydro-char through hydrothermal conversion (HTC) has been well studied, while the treatment of wastewater (HTCWW) was overlooked. The present study aimed to investigate the organic compositions of HTCWW obtained under different temperatures and residence time (170-320â¯Â°C, 0.5-6.0â¯h) and their potentials use for methane production through anaerobic digestion (AD). Results showed that the methane yield achieved to 286â¯mL CH4/g COD when HTC temperature was 170â¯Â°C while it was decreased to only 136â¯mL CH4/g COD at 320â¯Â°C. The methane yield of HTCWW was also decreased with the increase of HTC residence time. Proteins and volatile fatty acids (VFAs) were the main products of HTCWW but more recalcitrant degradable compounds e.g. humic acid-like, melanoidins, nitrogen heterocycle, and phenols were formed through 3D-EEM and GC-MS analysis, which might result in the lower methane yield of HTCWW at increased temperatures. Furthermore, microbial analysis showed that different microbial community compositions for anaerobic degradation of the HTCWW samples were established due to the different organic compositions. Therefore, the integration of HTC and AD can be a potential complementary process for energy recovery from DSS.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 357, 1 February 2019, Pages 367-375
Journal: Chemical Engineering Journal - Volume 357, 1 February 2019, Pages 367-375
نویسندگان
Huihui Chen, Yue Rao, Leichang Cao, Yan Shi, Shilai Hao, Gang Luo, Shicheng Zhang,