Brown and Caldwell Home Page

Brown and Caldwell engineers and scientists are technical and thought leaders in the environmental sector. Meet the people who have been advancing innovation for more than 70 years.
Author      Title/Abstract      

Achieving 10 PPB, The State-of-The-Art for Phosphorus Removal
Author: Daniel P. Clark, Roger S. Copp, James A. Nissen
Date: 10/99
Presented at WEF 72nd Annual Conference and Exposition, New Orleans, Louisiana, October 9-13, 1999

Phosphorus removal technology has evolved primarily as a means of controlling nutrient discharges from wastewater treatment plants. In recent years, phosphorus control technology has been applied more and more frequently to stormwater flows to satisfy watershed discharge limits. Generally, however, most phosphorus control applications have had target concentrations of about 0.5 mg/l (500 ppb) or more. Recently, adverse impacts to the South Florida Everglades, due in part to increased phosphorus discharges from the Everglades Agricultural Area south of Lake Okeechobee, have caused researchers to look beyond what is typically required of conventional phosphorus removal technologies and to evaluate alternative technologies that may be capable of achieving much lower effluent phosphorus concentrations. This paper discusses activities that have occurred and technologies that have been identified to achieve total phosphorus concentrations as low as 10 ppb in water being discharged to the Everglades.

This library contains published materials for which copyrights may be owned by entities other than Brown and Caldwell, but which are stored for limited uses by BC employees. Technical papers authored by BC employees generally may be printed and shared electronically with clients and prospective clients outside BC. Technical papers cannot be sold, and technical papers shared outside BC must have proper attribution of the original sponsoring organization or conference where the paper was presented. This attribution is embedded in each technical paper file when it is loaded into this library. Published articles from magazines or trade journals which are stored in this library are FOR INTERNAL USE ONLY and SHOULD NOT be distributed to clients or others outside BC, without express permission of the copyright owner. For questions regarding copyrights associated with any document in this library, or questions regarding copyrights in general, contact the Legal Department.