Advances in Environmental Technology (AET) is an international, open access, peer review, interdisciplinary and free charge publication. This journal appears four times a year and covers all aspects at the forefront of original environmental research in science, engineering and technologies. It publishes peer reviewed full length research papers, short communications, case studies, and critical review papers reporting on major advances in environmental areas. This academic journal is published jointly by the Iranian Research Organization for Science and Technology (IROST) and the Iranian Association of Chemical Engineers (IAChE).