AWWA MTC64513

An overview of Direct Integrity Testing defines it as a physical test applied to a membrane unit in order to identify and isolate integrity breaches. The purpose of DIT is to confirm the removal efficiency of a membrane system at a level commensurate with the log removal credit (LRC) awarded to the process. The objectives of this slide presentation include: review the requirements for direct integrity testing under LT2ESWTR; present key concepts for direct integrity testing; describe methods for establishing resolution and sensitivity for pressure- and marker-based DITs; and, describe methods for converting pressure decay results to LRVs. Includes table, figures.