T/CAQI 151-2020 Active Group standards

T/CAQI 151-2020 The Technical Specification for Application of Chemical Flocculants in Municipal Water Supply Plants

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 151-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Integrated road and waterway transportation

ICS Name: Water treatment agents

Publish Date: 2020-12-30

Implement Date: 2021-03-30

Scope

Scope: This standard specifies the general requirements for the application of coagulants in urban water supply plants, including coagulant selection, quality inspection, coagulant addition, facility maintenance, and safety management. This standard applies to the management and use of coagulants in urban water supply plants. When using coagulants in urban water supply plants, in addition to complying with the provisions of this standard, they shall also comply with the relevant national, industry, and local standards currently in force. Main Technical Content: 5.1 When selecting coagulants for urban water supply plants, the products shall meet the hygiene and safety requirements specified in GB/T 17218, and have a hygiene license for water-related products. The hygiene license for water-related products, the product quality certificate, and the product test report shall be inspected and archived. 5.2 Urban water supply plants shall select coagulants suitable for the water quality according to the requirements of 4.1. The selection of common coagulants can refer to Table 1. Water supply plants with the necessary conditions are encouraged to conduct coagulant adaptability tests. 5.3 The selected common coagulants shall comply with the relevant standards for drinking water purification agents stipulated by the state. The technical requirements for polyaluminum chloride are specified in Appendix A, the technical requirements for polysulfate iron are specified in Appendix B, the technical requirements for aluminum sulfate are specified in Appendix C, the technical requirements for ferric chloride are specified in Appendix D, and the technical requirements for polyacrylamide are specified in Appendix E. 5.4 When selecting other new coagulants, in addition to meeting the requirements of 4.1, it is recommended to conduct trials before use. 5.5 Urban water supply plants may appropriately adjust the coagulants according to the actual operating conditions, inc