Tannery is one of the most polluting industries. In order to recover the process water and costly chemicals, membrane based processes can be effectively used to treat the effluent emerging from each of the tannery units. This book presents a systematic and comprehensive study to develop a greener route to treat such effluents. It is to be emphasised that no such book dealing with application of membrane filtration in tannery waste exists currently. Therefore, this book obviously has significant advancement compared to existing books on membrane technology. This book will have two fold impacts. Firstly, its academic value is quite high, Secondly, it will have remarkable impact of scaling up such system in actual industrial scale from pilot plant data in an emerging area. This book presents detailed description of the membrane based processes to treat the effluent from various units operations of a tannery. The results are analysed in full detail. This book is a first kind of its own in this emerging field.