ISO 20419:2018
(Main)Treated wastewater reuse for irrigation — Guidelines for the adaptation of irrigation systems and practices to treated wastewater
Treated wastewater reuse for irrigation — Guidelines for the adaptation of irrigation systems and practices to treated wastewater
This document provides guidelines to planners and practitioners on how to adjust irrigation equipment so as to allow direct utilization of treated wastewater (TWW) for irrigation. It deals with the adjustment of all components of irrigation systems to TWW quality in respect to physical, chemical and biological parameters. This document provides guidelines on how to protect irrigation equipment so as to guarantee water systems functionality at high levels of efficiency. This document includes recommendations for a) pumping stations, b) filtration, c) water network systems, d) irrigation equipment: emitters (drippers, sprinklers, mini sprinklers, micro sprinklers, sprayers and irrigation machine (sprinklers and sprayers), e) physical treatment of irrigation equipment, and f) chemical treatment of irrigation equipment. This document defines TWW parameters at the irrigation system inlet after a wastewater treatment plant, in order to allow optimal and continual functioning of the irrigation systems and to allow uniformity of emitters' discharge.
Réutilisation des eaux usées traitées en irrigation — Lignes directrices pour l’adaptation des systèmes et pratiques d’irrigation aux eaux usées traitées
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 20419
First edition
2018-10
Treated wastewater reuse for
irrigation — Guidelines for the
adaptation of irrigation systems and
practices to treated wastewater
Réutilisation des eaux usées traitées en irrigation — Lignes
directrices pour l’adaptation des systèmes et pratiques d’irrigation
aux eaux usées traitées
Reference number
ISO 20419:2018(E)
©
ISO 2018
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ISO 20419:2018(E)
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© ISO 2018
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ii © ISO 2018 – All rights reserved
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ISO 20419:2018(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Treated wastewater (TWW) . 2
3.2 Filtration . 2
4 TWW quality monitoring for micro-irrigation . 4
4.1 General . 4
4.2 TWW quality monitoring devices . 4
4.2.1 Flushing counter for automated filters . 4
4.2.2 pH level sensor . 4
4.2.3 Clogging capacity meter . 4
4.2.4 Chlorine demand sensor . 5
4.3 TWW quality monitoring procedure . 5
5 TWW reservoirs . 5
5.1 General . 5
5.2 TWW reservoir safety . 5
5.3 TWW reservoir design .
...
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