T/CAQI 148-2020 Active Group standards

T/CAQI 148-2020 Technical Regulations for the Application of Chlorine Dioxide in Urban Water Supply

T/CAQI 148-2020

Publish Date: 2020-12-30 Implement Date: 2021-03-30 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CAQI 148-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Outdoor water supply and drainage projects

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2020-12-30

Implement Date: 2021-03-30

Scope

Scope: This standard specifies the design, installation, inspection and evaluation, operation and maintenance, and safety management of chlorine dioxide applications in urban water supply systems. This standard applies to the use of chlorine dioxide for disinfection and pre-oxidation in urban water supply systems. This standard applies to the inspection of technical performance indicators of chlorine dioxide generators using chlorite and chlorate as the main raw materials. This standard applies to the determination of the chlorine dioxide dosage when using pure chlorine dioxide generators in water supply systems. In addition to this standard, the application of chlorine dioxide in urban water supply systems shall also comply with the provisions of relevant national and industry standards currently in force. For the application of chlorine dioxide in rural water supply systems, this standard can be used as a reference. Main technical contents: 4.1 For water supply systems using chlorine dioxide, it is recommended to adopt on-site preparation and addition. 4.2 Chlorine dioxide generators shall comply with the requirements of GB 28931 and obtain the "Health Permit for Products Involving Drinking Water Hygiene and Safety". They shall be equipped with online monitoring devices for raw material flow, alarm devices for raw material interruption, monitoring devices for temperature and pressure, and addition control devices. 4.3 Chlorine dioxide generators shall provide performance parameters such as rated output and suitable operating range. 4.4 The reaction raw materials for chlorine dioxide generators shall comply with the relevant requirements of GB 28931. 4.5 Raw material storage tanks, generators, piping materials, and fittings in chlorine dioxide systems shall have good sealing and corrosion resistance.