BS EN 16941-2:2021
$142.49
On-site non-potable water systems – Systems for the use of treated greywater
Published By | Publication Date | Number of Pages |
BSI | 2021 | 32 |
This document specifies the principles of design, sizing, installation, identification, commissioning and maintenance of greywater systems with the purpose of use of greywater on-site.
It applies preferably for the use of treated greywater for:
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WC flushing;
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garden watering;
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laundry;
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cleaning purposes.
This document also specifies the minimum requirements for greywater systems.
Excluded from the scope of this document are:
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the use as drinking water and for food preparation;
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the use for personal hygiene purposes;
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direct use systems without treatment;
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product design for specific system components;
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industrial effluents;
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heat recovery and cooling demands.
Conformity with this document does not exempt from compliance with the obligations arising from local or national regulations.
PDF Catalog
PDF Pages | PDF Title |
---|---|
2 | National foreword |
6 | European foreword |
7 | Introduction |
8 | 1 Scope 2 Normative references |
9 | 3 Terms and definitions 4 Functional elements and greywater quality |
10 | 5 Design 5.1 General |
11 | 5.2 Collection 5.3 Treatment 5.4 Storage 5.4.1 General |
12 | 5.4.2 Materials 5.4.3 Dimensions 5.4.4 Capacity 5.4.5 Structural behaviour 5.4.6 Watertightness 5.4.7 Connections and internal pipe system |
13 | 5.4.8 Access 5.4.9 Overflow 5.5 Back-up water supply 5.5.1 General |
14 | 5.5.2 Backflow protection device |
15 | 5.6 Pumping 5.6.1 General |
16 | 5.6.2 Pumps for collected greywater 5.6.3 Pumps for treated greywater |
17 | 5.6.4 Expansion vessel 5.6.5 Pump control unit 5.7 System control with monitoring |
18 | 5.8 Metering 5.9 Distribution 6 Sizing 6.1 General 6.2 Calculation method 6.2.1 General |
19 | 6.2.2 Demand and yield hierarchies 6.2.3 Basic approach 6.2.4 Detailed approach |
21 | 7 Installation 8 Differentiation and identification |
22 | 9 Commissioning 10 Quality of non-potable water |
23 | 11 Testing of water quality 12 Maintenance |
25 | Annex A (informative) Greywater yield and demand |
26 | Annex B (informative) Types of greywater systems |
27 | Annex C (informative) Example of dye testing for distribution pipework cross-connections |
29 | Annex D (informative) Example for water quality requirements |
31 | Bibliography |