The forthcoming book, "Design and construction of phosphorus removal structures for improving water quality" is set to be published by Springer on July 4rth, 2017.
You can currently pre-order the book here at the links, from Springer and Amazon
Also, Phrog software is now available for non-profit agencies and government agencies for free from Oklahoma State University (www.phrog.okstate.edu) after obtaining a free license from them. Private companies who wish to commercialize construction of P removal structures must pay for a license for the software.
