COMPOSITIONS AND METHODS FOR THE REDUCTION OF BIOFILM AND SPORES FROM MEMBRANES

• Main Authors: BUNDERS, CYNTHIA ANN, POWER, CALEB MYUNGHOON FORD, SCHACHT, PAUL FRAZER, SCHULTZ, NIKOLAUS NATHAN, ERICKSON, ANTHONY WAYNE
• Format: Patent
• Language: English; French
• Published: 22.08.2019
• Subjects: ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; CANDLES; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; DETERGENT COMPOSITIONS; DETERGENTS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; FATTY ACIDS THEREFROM; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; RECOVERY OF GLYCEROL; RESIN SOAPS; SEPARATION; SOAP OR SOAP-MAKING; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE; USE OF SINGLE SUBSTANCES AS DETERGENTS

Methods of cleaning and sanitizing membrane modules within a membrane system are provided. A cleaning solution is circulated through the membrane system for about (2) to about (30) minutes. The cleaning solution includes organic acid and surfactant. A sanitizing solution is added to the cleaning solution to produce a boosted antimicrobial solution comprising an oxidizer. The boosted antimicrobial solution is then circulated through the membrane system for about (1) to about (20) minutes. The methods described are effective for reducing and removing bacterial spores and biofilms from membranes and improving membrane compatibility of effective cleaning and sanitizing solutions. L'invention concerne des procédés de nettoyage et de désinfection de modules membranaires à l'intérieur d'un système membranaire. Une solution de nettoyage est mise en circulation à travers le système de membrane pendant environ (2) à environ (30) minutes. La solution de nettoyage comprend de l'acide organique et un tensioactif. Une solution désinfectante est ajoutée à la solution de nettoyage pour produire une solution antimicrobienne amplifiée comprenant un oxydant. La solution antimicrobienne amplifiée est ensuite mise en circulation à travers le système de membrane pendant environ (1) à environ (20) minutes. Les procédés décrits sont efficaces pour réduire et éliminer des spores bactériennes et des biofilms de membranes et améliorer la compatibilité de membrane de solutions de nettoyage et de désinfection efficaces.