You can hear the passion in Dan Peterson’s voice when he speaks about his product. As superintendent of the Durham (N.H.) Wastewater Treatment Plant, he gets excited about testing technologies, making the highest-quality effluent possible, and meeting the challenges of nitrogen limits for the Great Bay, a unique salt marsh and estuary.He likes to compare influent and effluent quality in glass jars in front of college students who tour the plant. Occasionally, he adds a glass of tap water. “A lot of times, they have trouble telling the difference,” he says. “The product we produce keeps me interested in this
