کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7069585 | 1459923 | 2016 | 40 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced anaerobic digestion performance via combined solids- and leachate-based hydrolysis reactor inoculation
ترجمه فارسی عنوان
عملکرد هضم بی هوازی پیشرفته از طریق ترکیب جامدات و محلول رآکتور هیدرولیز مبتنی بر شیلنگ
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کلمات کلیدی
T-RFLPNon-metric multi-dimensional scalingOrganic fraction municipal solid wasteTANMDSOFMSWOLROTU - OTAmmonia - آمونیاکInoculation - تلقیحAcclimation - سازگاریSalinity - شوریLeachate - شیرابهTerminal restriction fragments - قطعات محدود کننده ترمینالterminal restriction fragment length polymorphism - قطعه قطعه قطعه قطعه polymorphismOrganic loading rate - نرخ بارگیری آلیAnaerobic digestion - هضم بیهوازیoperational taxonomic unit - واحد تاکسونومی عملیاتیMulti-stage - چند مرحله ایtotal ammonia nitrogen - کل نیتروژن آمونیاک
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Suboptimal conditions in anaerobic digesters (e.g., presence of common inhibitors ammonia and salinity) limit waste hydrolysis and lead to unstable performance and process failures. Application of inhibitor-tolerant inocula improves hydrolysis, but approaches are needed to establish and maintain these desired waste-hydrolyzing bacteria in high-solids reactors. Herein, performance was compared for leach bed reactors (LBRs) seeded with unacclimated or acclimated inoculum (0-60% by mass) at start-up and over long-term operation. High quantities of inoculum (â¼60%) increase waste hydrolysis and are beneficial at start-up or when inhibitors are increasing. After start-up (â¼112Â days) with high inoculum quantities, leachate recirculation leads to accumulation of inhibitor-tolerant hydrolyzing bacteria in leachate. During long-term operation, low inoculum quantities (â¼10%) effectively increase waste hydrolysis relative to without solids-derived inoculum. Molecular analyses indicated that combining digested solids with leachate-based inoculum doubles quantities of Bacteria contacting waste over a batch and supplies additional desirable phylotypes Bacteriodes and Clostridia.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 220, November 2016, Pages 94-103
Journal: Bioresource Technology - Volume 220, November 2016, Pages 94-103
نویسندگان
L. Paige Wilson, Sybil E. Sharvelle, Susan K. De Long,