کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6585577 | 456380 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dewaterability of anaerobic digestate from food waste: Relationship with extracellular polymeric substances
ترجمه فارسی عنوان
غلظت هضم بی هوازی از مواد زائد مواد غذایی: ارتباط با مواد پلیمری خارج سلولی
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کلمات کلیدی
Extracellular polymer substancesA2OEPSSFWADSTPsSRFRFWMGSBound water - آب محدودDewaterability - آبگیریWAS - بودFood waste - زباله های مواد غذاییWaste activated sludge - لجن فعال زبالهSpecific resistance to filtration - مقاومت مخصوص به فیلتراسیونExtracellular polymeric substances - مواد پلیمری خارج سلولیAnaerobic digestate - هضم بی هوازیAnaerobic digestion - هضم بیهوازیProteins - پروتئین هاPolysaccharides - پلیساکاریدها
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
This study investigated the dewaterability and extracellular polymeric substances (EPS) characteristics of food waste digestates collected from different sources and after different anaerobic digestion times. The specific resistance to filtration, normalized capillary suction time and bound water indicated that the dewaterability of the digestates from restaurant food waste was inferior to those of household kitchen waste. However, the anaerobic digestion course was more vital to digestate dewaterability than the digested materials. The dewaterability significantly deteriorated and high amounts of EPS were extracted in the fast hydrolysis period, suggesting that the accumulated hydrolysates contributed to the low dewaterability. A long digestion time of over 30Â days also led to low dewaterability. Correlation analysis and partial least square analysis indicated that EPS characteristics have an important influence on the dehydration of anaerobic digestates, with bound water being more influenced by polysaccharides and the other dewaterability indexes more affected by proteins.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 262, 15 February 2015, Pages 932-938
Journal: Chemical Engineering Journal - Volume 262, 15 February 2015, Pages 932-938
نویسندگان
Fan Lü, Qi Zhou, Duo Wu, Tianfeng Wang, Liming Shao, Pinjing He,