A comprehensive study on municipal solid waste characteristics for green energy recovery in Urta-Chirchik: A case study of Tashkent region

This study aimed to investigate the characteristics and composition of MSW generated in one of the biggest districts (Urta-Chirchik) of the Tashkent Region. The results indicated that the wood waste level was the highest among other components of MSW. Hence, the MSW samples were divided into two groups: a) mixed MSW and b) wood waste. Proximate and ultimate analyses of the samples were investigated following the ASTM and European Pn-En international standards. A study of energy recovery was conducted using a bomb calorimeter (model: V-08 MA) and ASTM standards. The energy content or calorific value of the mixed MSW was 2479.34 kcal/kg and 2190.02 kcal/kg for wood waste respectively. The elemental analysis of the samples was performed by CHNS/O elemental analyzer. The XRF results showed that MSW and wood wastes contain mainly CaO, SiO2, Fe2O3 and other 15 combining oxides. It has been observed that MSW is less reactive to combustion as compared to coal, but its reactivity can be improved through the pre-treating process so as to reduce noncombustible materials such as oxygen and ash content. In addition, an introduction of updated thermochemical conversion of MSW to value-added products and robust Waste-to-Energy technological project development is recommended. (C) 2019 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the 7th International Conference on Nanomaterials and Advanced Energy Storage Systems.