کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8071286 | 1521393 | 2018 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancement of biogas production from sewage sludge in a wastewater treatment plant: Evaluation of pretreatment techniques and co-digestion under mesophilic and thermophilic conditions
ترجمه فارسی عنوان
افزایش تولید بیوگاز از لجن فاضلاب در یک کارخانه تصفیه فاضلاب: ارزیابی تکنیک های پیش درمان و هموگلوبین تحت شرایط مزوفیل و ترموفیلیک
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کلمات کلیدی
LFLLCOEIBRISROLRHRTElectrocoagulation - الکترو کلاژنstandard deviation - انحراف معیارAnaerobic biodegradability - تجزیه بیولوژیکی بی هوازیFood waste - زباله های مواد غذاییhydraulic retention time - زمان هیدرولیکیLandfill leachate - شیرابه محل دفن زبالهSewage sludge - لجنMunicipal sewage sludge - لجن فاضلاب شهریHeat exchanger - مبدل گرمایی یا مبدل حرارتیOrganic loading rate - نرخ بارگیری آلیInoculum to substrate ratio - نسبت انسولین به بسترLevelized cost of energy - هزینه تقسیم انرژیAnaerobic digestion - هضم بیهوازیCo-digestion - هموگلوبینHex - هگزاPretreatment - پیش تصفیهCow manure - کود گاوی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
Boosting biomethane production makes it possible to offset the required energy in a wastewater treatment plant. In this research, using batch biomethane potential assays, various techniques including pretreatment, co-digestion, and digestion temperature rise were evaluated to increase the methane productivity of municipal sewage sludge (SS). Between thermal and sonication pretreatment methods, thermal pretreatment was shown to be more efficient and there was no need to pretreat SS for more than 0.5â¯h. Thermophilic digestion of SS led to 160.8% rise in the methane productivity, compared to mesophilic digestion. The most suitable co-substrate for co-digestion with SS was food waste (FW). FW and SS had little negative synergistic effect, however higher FW concentration caused to higher specific methane yield. Thermal pretreatment was not effective on FW. To evaluate the techniques, a combined cooling, heat and power plant was suggested. The energy recovery balance was positive for all the techniques, but co-digestion was not successful to reduce the levelized cost of energy (LCOE). Unlike co-digestion, thermal pretreatment and digestion temperature rise decreased the LCOE. The thermophilic digestion of SS, pretreated at 90â¯Â°C for 0.5â¯h, resulted in the lowest amount of LCOE by 43.70% reduction, compared to the mesophilic single digestion of non-treated SS.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 157, 15 August 2018, Pages 707-717
Journal: Energy - Volume 157, 15 August 2018, Pages 707-717
نویسندگان
Siamak Mirmasoumi, Sirous Ebrahimi, Rahim Khoshbakhti Saray,