Journal Article
Assessing the Performance of Shipboard Instruments Used to Monitor Total Residual Oxidants
Matthew R. First; Gregory Ziegler; Stephanie H. Robbins-Wamsley; Janet M. Barnes; Mario N. Tamburri
Journal of Marine Science and Engineering · Vol. 13, Issue 11 · pp. 2068 · 2025
Abstract
Shipboard ballast water management systems (BWMS) commonly employ chlorine or other oxidants to treat ballast. Oxidant-based BWMS inject these biocides to meet a concentration threshold or target value that is lethal to most aquatic organisms. Resulting concentrations of total residual oxidant (TRO) may span two orders of magnitude between initial doses (e.g., ~10 mg L−1) and discharged ballast, which must meet discharge limits (e.g.,