公开(公告)号：WO2003092919A1

公开(公告)日：2003-11-13

申请号：PCT/US2003/013219

申请日：2003-04-29

Applicant: ONDEO NALCO COMPANY

Inventor： COOPER, Andrew, J. ,  GILL, Jasbir, S. ,  GUPTA, Amit ,  KELLY, Robert, F. ,  KELLY, Douglas, G. ,  MYERS, Eric, R.

IPC: B08B9/00

CPC classification number: A61L2/16 ,  A61L2/18 ,  A61L2/20 ,  A61L9/145 ,  A61L2202/17 ,  B08B9/00 ,  B08B9/032 ,  B08B9/08 ,  C02F1/50 ,  C02F1/66 ,  C02F9/00 ,  C02F2103/023 ,  C02F2303/04 ,  C02F2303/08 ,  C09K8/52 ,  C11D3/3956 ,  C11D7/08 ,  C11D7/265 ,  C11D11/0041 ,  F28F2265/20 ,  F28G9/00

Abstract: On-line and Off-line methods of simultaneously cleaning and disinfecting an industrial water system are described and claimed. The methods involve the addition to the water of the industrial water system of a Compound selected from the group consisting of the alkali salts of chlorite and chlorate and mixtures thereof; and an acid, followed by allowing the water in the industrial water system to circulate for several hours. The reaction of the alkali salts of chlorite and chlorate and acid produces chlorine dioxide in-situ in the water of the industrial water system. The chlorine dioxide kills microorganisms and the acid acts to remove deposits upon the water-contact surfaces of the equipment. An alternative method involves the use of a chelating agent and a biocide. Other possible cleaning and disinfection reagents may be added as needed including corrosion inhibitors, chelating agents, biocides, surfactants and reducing agents. These cleaning and disinfecting methods work in a variety of industrial water systems including cooling water and boiler water systems.

Abstract translation: 对工业用水系统进行同时清洗和消毒的在线和离线方法进行了描述和要求保护。 所述方法包括向工业水体系的水中加入选自亚氯酸盐和氯酸盐的碱金属盐及其混合物的化合物; 和酸，然后使工业用水系统中的水循环数小时。 亚氯酸盐和氯酸盐和酸的碱金属盐的反应在工业水系统的水中就地产生二氧化氯。 二氧化氯杀死微生物，并且酸作用以去除设备的水接触表面上的沉积物。 一种替代方法涉及使用螯合剂和杀生物剂。 可以根据需要添加其它可能的清洗和消毒试剂，包括腐蚀抑制剂，螯合剂，杀生物剂，表面活性剂和还原剂。 这些清洁和消毒方法适用于各种工业水系统，包括冷却水和锅炉水系统。