"Membrane technology is rapidly becoming the preferred method for water treatment. The past decade has seen an exponential growth in the number of membrane-based plants in operation and this growth seems unabated. The reasons for this are many including the recognition that membranes can provide a more complete barrier to pathogens, that the product water quality is less dependent on the feed quality and that membrane plant are compact with modest energy demand. … This book is very timely and provides a mine of information for the reader. We are sure you will find the journey a rewarding one."-Professor Tony Fane and Professor David Waite, from the foreword