As states push nutrient discharge limits lower for water resource recovery facilities (WRRFs), utilities must implement different technologies to make sure they comply. While many different nitrogen (N) and phosphorus (P) removal technologies can help meet these limits, WRRFs must carefully select them to avoid unintended consequences on dewatering processes and costs.
From Wastewater Treatment to Stormwater Pollution Control and Watershed Protection
By Roy Abe
Significant progress has been made in Hawaii to mitigate environmental and public health impacts from disposal of wastewater since the 1972 Clean Water Act. Much work remains, however, in improving water quality problems from stormwater runoff pollution, also referred to as nonpoint source pollution.