Water is the most valuable among all the natural resources and is known as the "matrix of life" All organism contains it, some live in it; some drink it. Plant and animal require water that is moderately pure and they can not survive if the water is loaded with toxic chemicals or harmful micro-organism. If severe, water pollution can kill large number of fish, birds and other animals, in some cases killing all members of a species in an affected area. Of all natural environmental resources, water is the most severely threatened by pollution and tannery waste water is one of the major causes of water pollution. This book will provide you information regarding the sources of water pollution, environmental impact of tannery waste water and detail treatment process. Application of the treatment process in the industry and experimental results are also included in this book. The analysis should be especially useful to researchers as well as professional or any one else who may be considering working on treatment of chemically toxic water.