In a time when resource recovery is a top priority, clean-water agencies increasingly look for biogas and biosolids solutions that are economical yet sustainable.In the view of John Willis, P.E., those two attributes go hand in hand a large share of the time. Willis, a vice president with the Brown and Caldwell engineering and construction firm, was elected to the Water Environment Research Foundation Research Council for a three-year term that began in April 2016.A nationally recognized expert in biosolids and biogas-to-energy, Willis has worked for 25 years helping utilities combat inefficiency and make the maximum use of energy. He
