MAINTAINING SEWER SALT LOAD REDUCTIONS THROUGH CLEANER PRODUCTION

摘要

A significant impediment to water recycling in the west of Melbourne is the relatively high total dissolved solids (TDS) or salt content of sewage flowing into the Western Treatment Plant (WTP). Without specific additional treatment high TDS levels in sewage reduce the quality of recycled water produced, which limits the opportunities for reuse, especially in agricultural applications. City West Water (CWW) considered a number of options to manage and reduce both residential and industrial salt contributions to the sewage system. This paper outlines the initiatives CWW undertook and the results achieved.