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GB/T 45622-2025: Terminology of seawater desalination and multi-purpose utilization
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GB/T 45622-2025: Terminology of seawater desalination and multi-purpose utilization

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ICS 07.060 CCSA45 National Standard of the People's Republic of China Terminology of seawater desalination and comprehensive utilization Released on 2025-05-30 2025-12-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of contents

Preface III 1 Scope 1 2 Normative references 1 3 Basic terminology 1 4 Seawater desalination technical terms 2 4.1 General terms 2 4.2 Technical terms for seawater desalination by distillation 4 4.3 Terminology of membrane desalination technology 7 4.4 Other seawater desalination technology terms 10 5 Seawater Cooling Technical Terminology 11 5.1 General terms 11 5.2 Corrosion Control Technology Terminology 13 5.3 Fouling Control Technology Terminology 13 5.4 Terminology of algae control technology 14 5.5 Technical terms for seawater cooling towers 15 6 major technical terms for seawater in daily life 17 6.1 General terms 17 6.2 Terminology of pre-treatment technology for large domestic seawater 18 6.3 Technical terms for post-treatment of seawater for domestic use 18 7 Technical terms for extraction and utilization of seawater chemical resources 20 7.1 Potassium extraction technical terms 20 7.2 Technical terms for bromine extraction 22 7.3 Magnesium extraction technical terms 25 7.4 Iodine extraction technical terms 26 7.5 Lithium extraction technical terms 27 7.6 Uranium Extraction Technical Terminology 27 References 29 Index 30

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed by the Ministry of Natural Resources of the People's Republic of China. This document is under the jurisdiction of the National Technical Committee for Marine Standardization (SAC/TC283). This document was drafted by. Tianjin Institute of Seawater Desalination and Comprehensive Utilization of the Ministry of Natural Resources and National Marine Standards and Metrology Center. The main drafters of this document are. Ruan Guoling, Qi Chunhua, Jiu Lanying, Wu Haihong, Zhang Lianqiang, Kou Xiyuan, Wang Yuhong, Xu Chunhong, Wu Yunqi, Han Kexin, Yin Jianhua, Wu Yunfang, Wang Tao, Wang Liang, Zhang Yushan, Qiu Jinquan, Shi Yulian. Terminology of seawater desalination and comprehensive utilization

1 Scope

This document defines the basic terms of seawater desalination and comprehensive utilization, seawater desalination technology, seawater cooling technology, and large-scale life seawater technology. Common terms and definitions of seawater chemical resource extraction and utilization technologies. This document is applicable to the scientific research, management, design, production application, economic and trade, technical document formulation, book and periodical editing in the field of seawater desalination and comprehensive utilization. Writing and translation of literature.

2 Normative references

This document has no normative references.

3 Basic terminology

3.1 raw seawater rawseawater Untreated seawater. [Source. HY/T 203.1-2016, 2.1] 3.2 Brackish water Water with a total salt content higher than 1000 mg/L and lower than the total salt content of original seawater. Note. The total salt content is generally between 1000mg/L and 10000mg/L. 3.3 Desalination The process of removing part or most of the salt from seawater or brackish water to obtain fresh water. 3.4 seawater multi-purpose utilization Technologies and processes for effectively utilizing seawater as a resource in various ways. Note. Comprehensive utilization of seawater mainly refers to seawater cooling, large-scale domestic use of seawater, extraction and utilization of seawater chemical resources, and other technologies and processes for utilizing seawater resources. Processes, excluding seawater desalination, salt pan salt production and marine aquaculture. 3.5 Research and development, production and service activities for seawater desalination, seawater cooling, large-scale domestic seawater use, and seawater chemical resource utilization. 3.6 waterintake The process of obtaining raw seawater or brackish water from the source. 3.7 Pretreatment The process of removing particles of mud, sand, colloids, microorganisms and other substances from the original seawater (brackish water) before the desalination and deionization process. Note. Pretreatment generally includes sterilization, coagulation, sedimentation, flotation, filtration and other processes. ...