GB/T 42247-2022Water reuse guidelines—Benefits evaluation of reclaimed water use (English PDF)
水回用导则 再生水利用效益评价
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 30, 2022
Implementation date
April 1, 2023
Scope
GB/T 42247-2022 is the English-translated version of 水回用导则 再生水利用效益评价.
GB/T 42247-2022 sets out how the benefits of reusing reclaimed water are evaluated in China.
It gives the general principles, the evaluation indicators and the evaluation procedure and methods: the indicator system is built from four categories - resource, ecological and environmental, social and economic benefits - each broken into first-level and, where needed, lower-level indicators, with quantitative indicators taking priority over qualitative ones, and the evaluation is to span the whole chain from the effluent of urban sewage and industrial wastewater treatment plants through intake, treatment, transmission and distribution, storage and use.
Individual projects and use scenarios may be evaluated separately and then together. It applies to the planning, design, operation and management of reclaimed water use. Issued on 30 December 2022, it has applied since 1 April 2023.
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Document preview — GB/T 42247-2022
National Standard of the People's Republic of China
- ICS
- 13.030.20
- Classification
- Z 05
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 General requirements
- 5 Evaluation indicators
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.
1 Scope
This document specifies the general principles, evaluation indicators, evaluation procedures and methods for the evaluation of the utilization benefits of reclaimed water.
This document is applicable to the planning, design, operation and management of reclaimed water utilization.
2 Normative references
The contents of the following documents constitute the essential clauses of this document by prescriptive reference in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 21534 Water Conservation Terminology
GB/T 50125 Basic Terminology Standards for Water Supply and Sewerage Engineering
3 Terms and Definitions
The terms and definitions defined in GB/T 21534 and GB/T 50125 apply to this document.
4 General requirements
4.1 The utilization of reclaimed water shall be safe, and the water quality shall meet the requirements of national standards or relevant local standards.
4.2 The evaluation of the benefits of reclaimed water utilization should comprehensively consider the benefits of resources, ecological environment, society, and economy.
4.3 Evaluation indicators of reclaimed water utilization benefits include quantitative and qualitative indicators, with quantitative indicators being the main ones. Indicators should be set in accordance with objective facts, Words are accurate and comparable.
4.4 The benefit evaluation of reclaimed water utilization should start from the effluent discharged from urban sewage treatment plants, industrial wastewater treatment plants, etc.
Water source water intake, treatment, transmission and distribution, storage, utilization and other links.
4.5 Different projects and different utilization scenarios can be evaluated separately. On this basis, conduct overall evaluation or comprehensive evaluation.
5 Evaluation indicators
5.1 Index system
5.1.1 Evaluation indicators include the following four categories. resource benefits, ecological and environmental benefits, social benefits and economic benefits.
5.1.2 A number of first-level indicators shall be established for each evaluation indicator category, and second-level or higher-level indicators may be established if necessary, as shown in Table 1 and Appendix A.
5.1.3 Evaluation indicators can be selected according to evaluation needs and characteristics of reclaimed water utilization. Priority should be given to selecting representative and able to embody one side Conditional indicators to avoid cross-repetition.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
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GB/T 21534-2021 — Water saving - Terminology
GB/T 50125-2010 — Standard for basic terms of water and wastewater engineering
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