It is an indisputable fact that the municipal sewage from the urban and semi-urban areas has a profound effect on the humans and other living beings on the earth and resulting in the cause of sewage pollution in the receiving water bodies. The book covers the various ways of controlling the municipal sewage pollution, including the toxic heavy metals by using the Activated sludge treatment process. The anthropological changes and the raw sewage let off from the semi-urban population has major impact on the canal waters leading to the changes in the treated effluent quality in the receiving water bodies has been included in this book covering different seasons. The research community, students and lectures can be benefitted by reading this book, which covers the broader view of controlling the municipal sewage pollution by implementing the eco- friendly technology in the form of re-use concept. This book supports the research findings with the facts, statistical data and figures in a form of a detailed discussion with latest references. It is self explanatory and it is written in a simple form, so that it can reach the wider community in the world.