灌溉项目处理后废水使用指南

[中文适用范围]： 本文件为评估不同处理水平的废水 (TWW) 的肥料价值提供了指导方针，以便对使用 TWW 灌溉的作物进行有效施肥。本文件涵盖： — 评估 TWW 提供的养分数量以及作物需求与 TWW 施用的养分之间的同步性； — 用 TWW 灌溉的作物的养分可用性； — 监测使用 TWW 灌溉的水、土壤和作物中的养分； — TWW 质量与肥料特性之间的匹配。在灌溉项目中安全使用 TWW 的风险评估和风险管理在 [外文原描述]： This document provides guidelines for the evaluation of the fertilizer value of treated wastewater (TWW) at different treatment levels, for an effective fertilization of crops irrigated with TWW. This document covers: — evaluation of the nutrient quantities provided by TWW and the synchronization between crop needs and the nutrients applied with TWW; — availability of nutrients to crops irrigated with TWW; — monitoring nutrients in water, soil and crops irrigated with TWW; — matching between TWW quality and fertilizer properties. Risk assessment and risk management for the safe use of TWW in irrigation projects are addressed in ISO 20426 [ 1 ] and ISO 16075-2 [ 2 ] .