ISO/TC 282/SC 2 - Water reuse in urban areas

This document provides guidelines for the planning and design of a reverse osmosis (RO) treatment system of municipal wastewater. This document is applicable to practitioners and authorities who intend to implement principles and decisions on RO treatment of municipal wastewater in a safe, reliable and sustainable manner. This document addresses RO treatment systems of municipal wastewater in their entirety and is applicable to any RO treatment system component. This document provides: — standard terms and definitions; — a description of the system components of an RO treatment system of municipal wastewater; — design principles of an RO treatment system of municipal wastewater; — statements on the feed water quality and technical requirements of an RO treatment system; — guidance for operation and maintenance of an RO treatment system; — specific aspects for consideration and emergency response. Design parameters and regulatory values of an RO treatment system of municipal wastewater are out of the scope of this document.

This document provides guidelines for the planning, design principles and considerations of a decentralized/onsite water reuse system and water reuse applications in urban areas. This document is applicable to practitioners and authorities who intend to implement principles and decisions on decentralized water reuse in a safe, reliable and sustainable manner. This document addresses decentralized/onsite water reuse systems in their entirety and is applicable to any water reclamation system component (e.g. source water collection, treatment, storage, distribution, operation and maintenance and monitoring). This document provides: — standard terms and definitions; — description of system components and possible models of a decentralized/onsite water reuse system; — design principles of a decentralized/onsite water reuse system; — common assessment criteria and related examples of water quality indicators, all without setting any target values or thresholds; — specific aspects for consideration and emergency response. Design parameters and regulatory values of a decentralized/onsite water reuse system are out of the scope of this document.

This document provides water reuse safety evaluation and public acceptance parameters and methods for users who design, manage, and/or oversee the non-potable water reuse schemes or activities in urban areas from the viewpoint of water quality. The document can be used in various stages of non-potable water reuse projects such as design, operation, and post assessment. The document is applicable to non-potable water reuse in urban areas with reclaimed water from municipal wastewater sources. The wastewater sources can also include a limited contribution of industrial wastewater input. While some communities are turning to potable reuse to meet water supply needs, discussion of safety evaluation of potable reuse is outside the scope of this document.

ISO 20760-1:2018 provides guidelines for the planning and design of centralized water reuse systems and water reuse applications in urban areas. ISO 20760-1:2018 is applicable to practitioners and authorities who intend to implement principles and decisions on centralized water reuse in a safe, reliable and sustainable manner. ISO 20760-1:2018 addresses centralized water reuse systems in their entirety and is applicable to any water reclamation system component (e.g. source water, treatment, storage, distribution, operation and maintenance and monitoring). ISO 20760-1:2018 provides: - standard terms and definitions; - system components and possible models of a centralized water reuse system; - design principles of a centralized water reuse system; - common assessment criteria and related examples of water quality indicators, all without setting any target values or thresholds; - specific aspects for consideration and emergency response. Design parameters and regulatory values of a centralized water reuse system are out of the scope of this document.

ISO 20760-2:2017 provides guidelines for the management of centralized water reuse systems and water reuse applications in urban areas. ISO 20760-2:2017 is applicable to practitioners and authorities who intend to implement management concepts, principles and supports on centralized water reuse in a safe, reliable and sustainable manner. ISO 20760-2:2017 addresses centralized water reuse systems in their entirety and is applicable to any water reclamation system component (e.g. source water, treatment, storage, distribution, operation and maintenance and monitoring). ISO 20760-2:2017 provides: - standard terms and definitions; - principles and methodology of reclaimed water management; - management issues in each system component of a centralized water reuse system; - specific aspects for consideration and emergency response. Monitoring parameters and regulatory values of a centralized water reuse system are out of the scope of this document.