en عمومى General پژوهشي Research Article <span style="font-size:12pt"><span style="line-height:16.0pt"><span new="" roman="" style="font-family:" times=""><b><i><span style="font-size:9.0pt">Background & Aims</span></i></b><b><span style="font-size:9.0pt">: </span></b><span style="font-size:9.0pt">Unsuitable management of municipal solid waste (MSW) is one of the main factors in environmental degradation, particularly in developing countries. This study aimed to analyze the quantitative and qualitative properties of MSW for energy recovery in the city of Mahabad, located in the West Azerbaijan&nbsp;Province, Iran. </span></span></span></span><br> <span style="font-size:12pt"><span style="line-height:16.0pt"><span new="" roman="" style="font-family:" times=""><b><i><span style="font-size:9.0pt">Materials & Methods</span></i></b><b><span style="font-size:9.0pt">:</span></b><span style="font-size:9.0pt"> Sampling from MSW was taken during the four seasons in 2014. Quality and quantity analyses included chemical composition, moisture percentage, dry weight, ash percentage, and heat value, which were performed in the lab as per the American Society for Testing and Materials Method D 5231-92. The experience modeling was used to extract chemical composition and heat value.</span></span></span></span><br> <span style="font-size:12pt"><span style="line-height:16.0pt"><span new="" roman="" style="font-family:" times=""><b><i><span style="font-size:9.0pt">Results</span></i></b><b><span style="font-size:9.0pt">:</span></b><span style="font-size:9.0pt"> The results showed that MSW was composed of 75% food waste, 12% ash, and 61% moisture. In the MSW organic fraction (</span><span lang="TR" style="font-size:9.0pt">C_28.7H_43.6O_15.3N₁S_0,065</span><span style="font-size:9.0pt">), carbon/nitrogen and heat values were found at 28.7 and 2.1 &times; 10⁴ Kj Kg^-1, respectively. Also, in the MSW biodegradable organic fraction (</span><span lang="TR" style="font-size:9.0pt">C_23.7H_37.7O_14.69N₁S_0.069</span><span style="font-size:9.0pt">), heat value and produced methane were calculated to be 10077 Kj Kg^-1 and 207 liters (148 g), respectively. Any carbon dioxide added to the atmosphere will hang around for a&nbsp;long&nbsp;time, between 200 and 200 ton day^-1, which contributes to trapping heat and warming the atmosphere. </span></span></span></span><br> <span style="font-size:12pt"><span style="line-height:16.0pt"><span new="" roman="" style="font-family:" times=""><b><i><span style="font-size:9.0pt">Conclusion</span></i></b><b><span style="font-size:9.0pt">: </span></b><span style="font-size:9.0pt">This study shows energy recovery from MSW is a good option, due to the high heat value. However, it is not an eco-friendly method as it will produce more greenhouse and poison gases and needs control systems.</span></span></span></span> Chemical composition, Municipal solid wastes, Energy recovery, Incineration, heat value, carbon/nitrogen 233 237 http://hsm.umsu.ac.ir/browse.php?a_code=A-10-141-1&slc_lang=en&sid=1 Sepideh Nemati-Mansour 10031947532846001892 10031947532846001892 No -Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran Fateme Tayebi tayebifateme1994@gmail 10031947532846001893 10031947532846001893 No Department of Water and Environmental Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran Amir Zahedi zahedi-a@shoushtarums.ac.ir 10031947532846001894 10031947532846001894 Yes Department of Environmental Health, School of Medical Sciences Shoushtar Faculty of Medical Sciences