کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
681879 888970 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Start-up of thermophilic–dry anaerobic digestion of OFMSW using adapted modified SEBAC inoculum
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Start-up of thermophilic–dry anaerobic digestion of OFMSW using adapted modified SEBAC inoculum
چکیده انگلیسی

The work presented here concerns the start-up and stabilization stages of a Continuous Stirred Tank Reactor (CSTR) semicontinuously fed for the treatment of the Organic Fraction of Municipal Solid Waste (OFMSW) through anaerobic digestion at thermophilic temperature range (55 °C) and dry conditions (30% Total Solids). The procedure reported involves two novel aspects with respect to other start-up and stabilization protocols reported in the literature. The novel aspects concern the adaptation of the inoculum to both the operating conditions (thermophilic and dry) and to the type of waste by employing a modified SEBAC (Sequential Batch Anaerobic Composting) system and, secondly, the direct start-up of the process in a thermophilic temperature regime and feeding of the system from the first day of operation. In this way a significant reduction in the start-up time and stabilization is achieved i.e. 110 days in comparison to 250 days for the processes reported by other authors for the same type of waste and digester. The system presents suitable operational conditions to stabilize the reactor at SRT of 35 days, with a maximum biogas production of 1.944 LR/L·d with a CH4 and CO2 percentage of 25.27% and 68.15%, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 101, Issue 23, December 2010, Pages 9031–9039
نویسندگان
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