1993/04/01 by Dennis Cliford, Xiaosha Liu · 1 citation
Environmental Science · #Wastewater Treatment and Nitrogen Removal
paper · doi:10.1002/j.1551-8833.1993.tb05971.x
crossref issued 1993/04/01 · crossref published 1993/04/01 · crossref published-online 1993/04/01 · crossref published-print 1993/04/01 · openalex publication_date 1993/04/01 · crossref created 2018/02/22 · crossref deposited 2023/09/25 · openalex created_date 2025/10/10 · crossref indexed 2026/07/26 · openalex updated_date 2026/07/26
A bench‐scale ion exchange process with batch biological denitrification of the spent regenerant brine was developed to remove nitrate from drinking water. This research indicates that the combination procedure results in 50 percent reduction of regenerant consumption and 90 percent reduction in the mass of waste salt discharged. The process features a sequencing batch reactor to accomplish the biological denitrification of a 0.5 N sodium chloride spent regenerant solution. Now being pilot tested in California, the process—which is simple, flexible, and reliable—should be suitable for use by small systems.