EFFECT OF NEARLY ONE HUNDRED PERCENT OF MUNICIPAL SOLID WASTE RECYCLING IN NAJAFABAD CITY ON IMPROVING OF ITS AIR QUALITY
Introduction: Now, 100% of solid waste in Najafabad is recycled. The main aim of this study is to evaluate the effect of 100% solid waste recycling on emissions of CO2, CH4 and more than 40 non-methane organic compounds from landfill to the atmosphere.
Materials and methods: To achieve this aim, it is assumed that if 100% solid waste recycling were not carried out in Najafabad, and if this city had a landfill with enough capacity to accept its solid waste for 20 years, a significant amount of the mentioned gases would have been emitted into the atmosphere. With this assumption, all necessary information about the amount of solid waste production in Najafabad was collected and the amount of gases released into the atmosphere was calculated by LandGEM software.
Results: The results show that for landfilling of Najafabad solid waste over 20 years, a landfill with capacity of 2.3 million m3 is needed. Total generated CO2 and CH4 from this imaginary landfill during 20 years of fictional landfill operation are 107206 and 39074 tons, respectively. In addition, considerable amounts of CH4 and CO2 emission would continue for an estimated 120 years after landfill closure year. Calculations show that in 2015 alone, 93.79 tons of hazardous non-methane organic compounds could have been emitted into the atmosphere, most of them toxic and carcinogenic.
Conclusions: Today’s 100% solid waste recycling in Najafabad has completely avoided these emissions. Consequently, it is recommended that nearly 100% solid waste recycling must become the final goal in all Iranian recycling organizations, to decrease landfill costs and to realize a healthier environment.
Talaie MR, Mokhtarian N, Talaei AR, Karimikhosroabadi M, Sadeghi F. Experimental and theoretical investigation of droplet dispersion in Venturi scrubbers with axial liquid injection. Chemical Engineering and Technology. 2009;32(5):798-804.
Fulazzaki MA, Talaiekhozani A, Hadibarata T. Calculation of the optimal gas retention time using the logarithmic equation applied to bio-trickling filter reactor for formaldehyde removal from synthetic contaminated air. RSC Advances. 2013;3(15):5100–7.
Fulazzaky MA, Talaiekhozani A, Abd Majid MZ, Mohanadoss P, Goli A. Evaluation of Gaseous Retention Time Effects on the Bio-trickling Filter Performance to Treat Waste Gases Contaminated with Formaldehyde. RSC Advances. 2013; 3(38):17462–8.
Jonidi jafari A, Talaiekhozani A. Introduction to Solid Waste Material. 1st ed. Tehran: Ebadifar Publisher; 2011.
Gendebin A, Pauwels, M. Landfill Gas from Environment to Energy. 1st ed. Luxembourg: Office for Official Publications of the tropean Communities;1992.
Christensen TH. Landfilling of waste: biogas. 1st ed. London: E & FN Spon;1996.
Ten steps which was ranked Isfahan number one in solid waste management. 2016. [cited 2016 Jan 8]. Available from: http://www.esfahanemrooz.ir/news/62381/index.html.
Talaiekhozani A. Landfill Gas Emissions Model (Land-GEM) Version 3.02 User’s Guide [internet]. Talaiekhozani; 2015 [updated 2015 Oct 18; cited 2016 January.
Available from Netlibrary: http://www.researchgate. net/publication/282943665___3.02___.
Omrani GA, Mohseni N, Haghighat K, Javid AH. Technical and Sanitary assessment of Methane extraction from Shiraz Landfill. Journal of Environmental Science and Technology. 2009; 10(4):175–182.
Safari E, Asadollahfardi Gh.R, Joghtaee F, Editors. Evaluation of reducing possibility of produced methane pollution in municipal landfill based on sustainable development mechanism in Rasht city. 4th National Congress on Waste Management, Mashhad, 21-22 Apr 2008.
Safari E. Reduction of Produced Methane Gas from Landfill by Applying Clean Development Mechanism (CDM) (Case Study: Mashhad Landfill). M.Sc dissertation, Tehran: Tehran University; 2012.
Environmental Protection Agency (EPA). Green Power from Landfill Gas Helping Build a Sustainable Energy Future while Improving the Environment. 2008.
Amini HR, Reinhart DR, Mackie KR. Determination of first-order landfill gas modeling parameters and uncertainties. Waste Management. 2012; 32(2):305-16.
Harris R, Methane Causes Vicious Cycle in Global Warming [internet]; Harris; 2010 [updated 2010 Jan 18; cite 2016 Jan 8]. Available from Netlibrary: http://www.npr.org/templates/story/story.php?storyId=122638800.
Agency for Toxic Substances and Disease Registry. Toxicological Profile for Benzene. U.S. Public Health Service, Atlanta: Agency for Toxic Substances and Disease Registry. U.S. Department of Health and Human Services. 2007.
Roshan A, Talaiekhozani A, Roodpeyma Sh, Editors. A Review on Removal of Pollutants from Air Using Biological Methods. The 5th Conference on Application of Chemistry in Novel Technology, Isfahan, 17 Dec 2015.
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