Sus M. Research and development of the process of safe water disinfection with agents of non-oxidative action

Ability of a wide range of ion-exchange materials to sorb non-oxidizing water treatment biocides Polyhexamethyleneguanidine hydrochloride (PHMG) and Dibromonitrilopropionamide (DBNPA) was investigated. The most suitable materials for PHMG excess removal and sorbents with bactericidal effect developing were chosen. The mechanisms of interaction between biocides and selected ion-exchange resins were studied and proposed. The main recommendations for bactericidal sorbents developing and application as well as optimal conditions of PHMG removal process were formulated. Water treatment and disinfection technology for emergency situations with the use of PHMG followed by its removal on macroporous weak acid cation resin was developed. It is shown that the proposed technology allows up to 50% economy compared to the same technology based on the use of active chlorine tablets.