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      

Regional Coupled Trickling Filter-Activated Sludge Plant for Central Valley
Author: John T. Bouey, Reed. N. Fisher

Trickling filters using rock media are a widely accepted form of biological treatment in Utah and other western states. Popular in both small- and medium-sized communities because of stable, reliable, and economical performance, these plants are capable of removing substantial amounts of those organic contaminants in wastewater that are conventionally removed -- biochemical oxygen demand (BOD) and suspended solids (SS). Recently adopted effluent limitations, however, dictate the addition of unit processes designed not only to enhance BOD and SS removal efficiency but to reduce the emissions of other pollutants such as ammonia (NH3), coliform organisms, and chlorine toxicity as well.

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.