کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8102911 | 1522136 | 2016 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A comparative assessment of anaerobic digestion power plants as alternative to lagoons for vinasse treatment: life cycle assessment and exergy analysis
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کلمات کلیدی
LCIALCITSCIDAUASBOLRSWWLHVCHPSugar wastewaterEDTA - اتیلن دی آمین تترا استیک اسید Ethylenediaminetetraacetic acid - اتیلینیدامین تتراستیک اسیدlower heating value - ارزش حرارت پایین ترLife cycle impact assessment - ارزیابی تاثیر چرخه زندگیLCA - ارزیابی چرخه حیاتLife Cycle Assessment - ارزیابی چرخه عمر یا چرخه حیاتIminodiacetic acid - اسید امیندیوایتیکBiogas - بیوگازExergy analysis - تحلیل اگزرژیCombined Heat and Power - ترکیب گرما و قدرتchemical oxygen demand - تقاضای اکسیژن شیمیاییEnergy generation - تولید انرژیBiogas production - تولید بیوگازSulfide removal - حذف سولفیدsludge drying - خشک کردن لجنExergy efficiency - راندمان اضافیLagooning - لانگینگOrganic ligand - لیگاند آلیLife Cycle Inventory - موجودی چرخه زندگیOrganic loading rate - نرخ بارگیری آلیPower plant - نیروگاهAnaerobic digestion - هضم بیهوازیVinasse - وینساCod - کادو
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
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چکیده انگلیسی
The treatment of vinasse in lagoons causes methane emissions during the anaerobic decomposition of the organic matter. The recovery of this methane, to produce renewable energy in anaerobic digestion power plants (ADPPs) replacing fossil fuels and reducing greenhouse gas emission, could bring environmental benefits. The aims of this work were: (1) to compare alternatives of ADPPs available for the treatment of vinasse; and (2) to evaluate the impacts of ADPPs as alternative for lagooning Cuban vinasse; both by means of Life Cycle Assessment (LCA) and exergy analysis (EA). The LCA and EA showed that the ADPPs improve the environmental profile with respect to the lagooning of vinasse, reducing up to 77% the total score and recovering up to 46% of the exergy extracted from the natural environment during the process, respectively. The highest environmental benefits for the ADPPs were observed when the subprocesses biogas production from raw vinasse, sulfide removal by biooxidation with air oxygen addition and energy generation in spark ignition engines were used. In that case, the treatment of 1072 ton of vinasse (exergy content of 740.6 GJex) can produce 175 GJex as “electricity and heat”, 191 GJex as “wastewater for fertirrigation”, 21.7 GJex as “digestate”, and 0.41 GJex as “sulfur in the filter cake”. This way, the produced 1.3 million cubic meters of vinasse (1.34·106 ton/year) reported by the Cuban Ministry of the Cane Sugar Industry can replace 485263 GJex per year as energy and bio-fertilizers, reducing the negative environmental impacts for the studied categories.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cleaner Production - Volume 113, 1 February 2016, Pages 459-471
Journal: Journal of Cleaner Production - Volume 113, 1 February 2016, Pages 459-471
نویسندگان
Ernesto L. Barrera, Elena Rosa, Henri Spanjers, Osvaldo Romero, Steven De Meester, Jo Dewulf,