Chemical engineering with focus on environmental impact and energy resources

This topical issue devoted to Chemical engineering with focus on environmental impact and energy resources. There is no non-renewable energy source, which would be a completely "clean and green" energy source. Unfortunately, while getting the energy, we usually impact our environment in some negative way. All energy sources affect the environment in different levels. Some nonrenewable energy sources, such as coal, have a greater impact than others. Fortunately, the energy industries have become gradually aware of the importance of environmental protection and are working to reduce its longterm negative effects. This special issue tends to report on critical issues of the environment, including remediation and treatment of solid or aqueous wastes, air pollution, sustainable energy, the investigation of trends in and solutions to resolving the issues of continuing increase in worldwide demand for energy, the diminishing accessibility of natural energy resources, and the growing impact of energy use on the environment. Several papers were received for this special issue and after rigorous peerreview process, three top papers were accepted for this issue. We believe that this collection of papers is a very good reflection of the standard and the variety of the research that is going on in the chemical engineering with focus on environmental impact and energy resources. We would like to thank all the authors for submitting their papers, and all the referees for their important contributions. We are grateful to Dr Anna Kowalska, the managing editor of CEJE, for her support in publishing this special issue.