Header
About this publication
Preface
1 Scope and general
1.1 Scope of standard
1.2 Exclusions
1.3 Objective
1.4 Application
1.4.1 General
1.4.2 Legislation
1.5 Normative references
1.6 Definitions
1.7 Test requirements
1.8 Abbreviations
2 Performance criteria and design requirements
2.1 Scope of section
2.2 Performance criteria
2.2.1 General
2.2.2 Treatment level and end uses
2.2.3 Level 1 performance and effluent compliance criteria
2.2.4 Level 2 performance and effluent compliance criteria
2.2.5 Level 3 performance and effluent compliance criteria
2.2.6 Nutrient reduction testing
2.2.7 Noise
2.2.8 Service life
2.3 Design requirements
2.3.1 Design flows
2.3.2 Design considerations
2.3.3 Temperature range
2.3.4 Tanks, vessels and fittings
2.3.5 Selection of materials
2.3.6 Design and construction of tanks
2.3.6.1 Polymer tanks
2.3.6.2 Other tanks
2.3.7 Mechanical and electrical equipment
2.3.8 Access hatches
2.3.9 Sampling points
2.3.10 Pumps
2.3.11 Alarm system
2.3.12 Diversion mechanisms
2.3.13 Modifications
2.3.13.1 General
2.3.13.2 Modifications triggering system retest
2.3.13.3 Modifications not requiring retest
2.3.14 Disinfection
2.3.14.1 General
2.3.14.2 Disinfection apparatus
2.3.15 Electricity consumption
2.4 Installation
2.5 Operation and maintenance
3 Marking of domestic greywater treatment systems
3.1 Scope of section
3.2 Requirements
3.2.1 Minimal information
3.2.2 Permanence and visibility
4 Information to be provided with a DGTS
4.1 Scope of section
4.2 DGTS documentation
4.2.1 DGTS data
4.2.2 Installation and maintenance instructions
4.2.2.1 General
4.2.2.2 Installation instructions
4.2.2.3 Operating and maintenance instructions
Appendix A
A1 Scope of Appendix
A2 General
A3 Test site
A4 Preliminary check
A5 Installation
A6 Raw influent quality
A6.1 General
A6.2 Influent collection
A6.3 Effluent compliance criteria
A7 Commissioning
A8 Testing and sampling regime
A8.1 Testing procedure
A8.2 Temperature
A8.3 Maintenance servicing
A8.4 Sampling
A8.5 Sample analysis
A8.6 Method of analysis
A8.7 Outcomes of testing
A9 Alternative disinfection system testing
A10 Reporting
A11 Decommissioning the DGTS
Appendix B
B1 Scope of Appendix
B2 Stress test sampling
B3 Laundry day stress test (recovery from high flows)
B3.1 Principle
B3.2 Influent
B3.3 Procedure
B4 Power failure stress test (recovery from short-term no flows)
B4.1 Principle
B4.2 Procedure
B5 Holiday stress test (recovery from extended no flows)
B5.1 Principle
B5.2 Procedure
B6 Peak flow stress test (recovery from surge flows)
B6.1 Principle
B6.2 Procedure
B7 Chemical stress test (recovery from chemical overload)
B7.1 Principle
B7.2 Procedure
Appendix C
C1 Scope of Appendix
C2 General
C3 Principle
C4 Preliminary check
C5 Influent greywater characteristics
C6 Preparation of synthetic greywater
C7 Commissioning
C8 Challenge test requirements
C9 Operational monitoring during challenge test
C10 Reporting
C11 Outcomes of testing
Appendix D
D1 Scope of Appendix
D2 Disinfection purpose
D3 Chlorine disinfection apparatus
D4 Chlorine application apparatus
D4.1 Liquid chlorine dosing
D4.2 Solid chlorine disinfection
D5 Ultraviolet disinfection
D5.1 General
D5.2 Apparatus
D5.3 Ultraviolet lamps
Appendix E
E1 Scope of Appendix
E2 Installation
E3 Site considerations
E3.1 Near buildings
E3.2 Desludging access
E3.3 Geotechnical
E3.4 Surface or subsurface water
E3.5 Sanitary drainage
E3.6 Cross-connection control and backflow prevention
E3.7 Signage and colour coding of pipework and fittings
E4 Installation instructions
E4.1 Manufacturer
E5 Installation verification
Appendix F
F1 Scope of Appendix
F2 Operation and maintenance procedures
F2.1 General
F2.2 Procedures
F2.3 Manuals
F3 Operational monitoring
F3.1 General
F3.2 Additional operational monitoring for Level 1 DGTS
F3.3 Additional operational monitoring for Level 2 DGTS
F3.4 Additional operational monitoring for Level 3 DGTS
Appendix G
G1 Scope of Appendix
G2 Relevance
G3 Testing and product certification
G4 Definitions
G5 Minimum sampling and testing frequency plan
G5.1 General
G5.2 Quality plan
Appendix H
H1 Scope of Appendix
H2 List of example brands
Bibliography
