کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8092100 1522004 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Greenhouse gas emission by wastewater treatment plants of the pulp and paper industry - Modeling and simulation
ترجمه فارسی عنوان
انتشار گازهای گلخانه ای توسط گیاهان تصفیه پساب صنایع کاغذ و کاغذ - مدل سازی و شبیه سازی
کلمات کلیدی
انتشار گازهای گلخانه ای، تصفیه خانه فاضلاب، نسل اکسید نیتروژن، مصرف انرژی، صنعت کاغذ و کاغذ مدل سازی،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی
Greenhouse gas (GHG) emission and energy consumption in wastewater treatment plants (WWTPs) of the pulp and paper industry were modeled and estimated. Aerobic, anaerobic, and hybrid biological processes were used for the removal of contaminants. In addition to the removal of carbonaceous compounds, anaerobic digestion of the produced sludge and the removal of excess nitrogen in the effluent of treatment plants by nitrification/denitrification processes were incorporated in the model. Carbon dioxide, methane, and nitrous oxide were the major GHGs generated during the biological treatment, combustion, energy generation, and transportation. The generated biogas from the anaerobic processes was assumed to be recovered and used as a source of energy for the treatment plant, in an effort to reduce GHG emissions while decreasing the total energy needs of the WWTP. The established kinetic relationships of wastewater treatment processes along with mass and energy balances were employed for the simulation of different treatment systems and estimation of GHG emissions. Various sources of GHG emission were divided into on-site and off-site sources to simplify the modeling and simulation procedure. The overall GHG generation in the presence of biogas recovery was equal to 1.576, 3.026, and 3.271 kg CO2-equivalent/kg BOD by the three examined systems. The energy produced by the recovery and combustion of biogas could exceed the energy demands of all different treatment plants examined in this study and reduce off-site GHG emission. The generation of GHGs from aerobic and hybrid processes increased by 27% and 33.2%, respectively, when N2O emission from nitrogen removal processes was taken into consideration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Greenhouse Gas Control - Volume 17, September 2013, Pages 462-472
نویسندگان
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