Effluent phosphorus limits are being ratcheted down in many states, challenging clean-water plants to find cost-effective ways to meet them.In Wisconsin, for example, plants face phosphorus limits as low as 0.075 mg/L. To remove phosphorus, operators have options that include chemical and biological treatment, technology solutions and adaptive management — working with upstream landowners to limit phosphorus contributions from runoff to the receiving stream.Aqua-Aerobic Systems, which offers a variety of wastewater treatment technologies, has been pilot-testing cloth media filtration as a way for plants to hit today’s extremely low phosphorus targets. The company deployed a portable pilot plant using a
Getting To Low P
Pilot testing with cloth media filtration documents one way to achieve the strict effluent total phosphorus limits being prescribed in today’s permits.
Apr 22, 2014
| by Ted J. Rulseh |
