Brown and Caldwell Home Page
Technical Papers RECENT PAPERS    ALL PAPERS

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      


Low-Quality Wastewater UV Disinfection at Sand Island WWTP: Part 1 - Bench-Scale Evaluation and First-Year Operation
Author: Victor Moreland and Peter Ono
Date: 10/08
Preprint WEFTEC ’08, Chicago, IL, October 18-22, 2008

The Sand Island Wastewater Treatment Plant (SIWWTP) is the largest wastewater treatment facility in the State of Hawaii. It provides primary treatment of municipal wastewater from metropolitan Honolulu, with disposal through a deep ocean outfall. The SIWWTP operates under a NPDES permit which includes a 301(h) waiver that allows for less than secondary treatment levels. Under the 1998 renewal of the NPDES permit EPA added a bacterial limit that would require disinfection. The City and County of Honolulu evaluated various disinfection methods and selected UV disinfection, primarily due to less risk and greatest reliability meeting the disinfection goals compared to other disinfection methods. This resulted in the construction of the largest primary effluent/low quality water UV disinfection facility in the world. The facility has been in operation for over a year and has been reliably providing disinfection of the effluent to meet bacterial permit limits.

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.