Center of Nano-Renewable Energy Research, University of Al-Nahrain organized its 2nd online international scientific conference on the role of waste treatment in supporting sustainable energy projects and increasing national income. The online conference highlighted the axes of domestic, industrial and commercial waste management and the uses of clean energies, as well as the importance of investments in the fields of waste treatment. The online conference aimed at developing an integrated waste management system, finding a special orientation towards waste collection and disposal and innovating administrative, technical, technical and economic methods for generating of electricity. The online conference recommended the beneficiaries to invest in the studies and researches presented to produce electrical energy from wastes. It is worth motioning that a number of researchers from Turkish, Indian, Australian, British and American universities were participated in the online conference.