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ISO 20419:2018 Treated wastewater reuse for irrigation - Guidelines for the adaptation of irrigation systems and practices to treated wastewater >
ISO 20419:2018 Treated wastewater reuse for irrigation - Guidelines for the adaptation of irrigation systems and practices to treated wastewater, 2018
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 3.1 Treated wastewater (TWW)
- 3.2 Filtration
- 4 TWW quality monitoring for micro-irrigation
- 4.1 General
- 4.2 TWW quality monitoring devices
- 4.2.1 Flushing counter for automated filters
- 4.2.2 pH level sensor
- 4.2.3 Clogging capacity meter
- 4.2.4 Chlorine demand sensor
- 4.3 TWW quality monitoring procedure
- 5 TWW reservoirs
- 5.1 General
- 5.2 TWW reservoir safety
- 5.3 TWW reservoir design
- 5.4 Type of TWW stored in the reservoir
- 5.5 Quality of TWW stored in the reservoir
- 5.6 Reservoir processes affecting TWW quality and derived reservoir operation
- 5.7 Reservoir engineering data and design
- 5.8 Biological treatment in reservoirs
- 6 Filtration systems
- 6.1 General
- 6.2 Filtration battery manifold structure
- 6.3 Filtration technology — Filtration media
- 6.4 Flow/filter area ratio
- 6.5 Filtration stations location in accordance with flow direction
- 6.6 Filtration grade
- 6.7 Manual filter cleaning
- 7 Pumping stations
- 7.1 General
- 7.1.1 Bottom pumping chamber
- 7.1.2 Floating suction head
- 7.2 Reservoir stratification prevention
- 8 Adaptation of emitters to TWW
- 8.1 General
- 8.2 Emitters classification
- 8.3 Drippers
- 8.3.1 General
- 8.3.2 On-surface dripper and sub-surface dripper
- 8.4 Durability and longevity of dripper
- 8.5 Functional features of the dripper
- 8.5.1 General
- 8.5.2 Functional features
- 8.6 Sprinkler/centre pivot/frontal pivot
- 8.6.1 General
- 8.6.2 Overhead sprinkler
- 8.6.3 Mini sprinklers
- 8.6.4 Micro sprinklers and sprayers
- 8.6.5 Center pivot sprinklers/sprayers
- 9 Design parameters for TWW irrigation
- 9.1 General
- 9.2 Design parameters for TWW irrigation systems (drippers, sprinkler irrigation machines)
- 10 Physical treatment
- 10.1 General
- 10.2 Flushing mains, sub-mains and tubes
- 10.3 Collector pipes
- 11 Chemical treatment
- Annex A (informative) Definition of TWW quality and treatment recommendations for micro-sprinkler irrigation or drip irrigation
- Annex B (informative) TWW quality parameters and test methods
- Annex C (informative) pH effect on Chlorine concentration
- Annex D (informative) Clogging capacity meter
- Annex E (informative) Sprinklers spacing according to wind conditions
- Annex F (informative) Water stratification in reservoirs
- Annex G (informative) Reservoir inspection and maintenance specification
- Annex H (informative) Chemical treatments in a reservoir
- Annex I (informative) Application of filtration systems to protect drip irrigation systems and spraying systems using TWW: the Israeli experience
- Bibliography [Go to Page]