公开(公告)号：US11241658B2

公开(公告)日：2022-02-08

申请号：US16274487

申请日：2019-02-13

Applicant: Ecolab USA Inc.

Inventor： Paul Frazer Schacht ,  Nikolaus Nathan Schultz ,  Caleb Myunghoon Ford Power ,  Cynthia Ann Bunders ,  Anthony Wayne Erickson

IPC: B01D65/08 ,  C11D7/26 ,  C11D3/20 ,  C11D3/48 ,  B01D65/02 ,  A61L2/18 ,  C11D3/04 ,  C11D11/00 ,  B01D71/02 ,  B01D71/06 ,  C02F1/44 ,  C02F5/10 ,  C02F1/72 ,  B01D61/02 ,  B01D63/02 ,  B01D63/06 ,  B01D63/08 ,  B01D63/10 ,  B01D61/14

Abstract: 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.

公开(公告)号：US20190275468A1

公开(公告)日：2019-09-12

申请号：US16274487

申请日：2019-02-13

Applicant: Ecolab USA Inc.

Inventor： Paul Frazer Schacht ,  Nikolaus Nathan Schultz ,  Caleb Myunghoon Ford Power ,  Cynthia Ann Bunders ,  Anthony Wayne Erickson

IPC: B01D65/08 ,  B01D65/02 ,  B01D71/02 ,  B01D71/06

Abstract: 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.