Being green is about many things for the City of Lowell (Mass.) Regional Wastewater Utility (LRWWU), but it’s mostly about caring. “People who work at treatment plants must be aware of our impact on the environment,” says executive director Mark Young. “It’s everything we do in our jobs.”It’s an attitude that works for this 32 mgd activated sludge plant, which began focusing intently on energy and environmental initiatives in 1996, when Young took his current position. Since then, energy consumption at this ISO 14001-certified operation dropped from 10 million MWh in 1996 to less than 6.7 million MWh — all
