The ICWWTP 2017: 19th International Conference on Water and Wastewater Treatment Plants aims to bring together leading academic scientists, researchers and research scholars to exchange and share their experiences and research results on all aspects of Water and Wastewater Treatment Plants. It also provides a premier interdisciplinary platform for researchers, practitioners and educators to present and discuss the most recent innovations, trends, and concerns as well as practical challenges encountered and solutions adopted in the fields of Water and Wastewater Treatment Plants.