Translations:Wasseraufbereitung und Grauwassernutzung/813/en
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| Country | EU | DE | UK | CA | USA | AU |
|---|---|---|---|---|---|---|
| Standard | Bathing water quality Directive 2006/7/EC [1] | DWA-M 277 Recommendations for construction of systems for handling and usage of greywater and greywater partial flows [2] | Greywater systems – BS 8525-1:2010 for spray applications [3] | Canadian Guidelines for Domestic Reclaimed Water for Use in Toilet and Urinal Flushing [4] | NSF/ANSI 350 – 2014 Onsite Residential and Commercial Water Reuse Treatment Systems [5] | Class A reclaimed water quality objectives (EPA Victoria) [6] |
| BOD5 (mg/L) | < 5 | Median 10 Maximum 20 |
Median 10 Maximum 25 |
< 10 | ||
| TSS (mg/L) | Median ≤ 10 Maximum ≤ 20 |
Median 10 Maximum 30 |
< 5 | |||
| PH | 6.5 - 9.5 | 5 - 9.5 | 6.0 - 9.0 | 6 - 9 | ||
| UV-Transmission | > 60 % | |||||
| Turbidity (NTU) | < 2 | < 10 | Median 2 Maximum 5 |
Median 2 Maximum 5 |
< 2 | |
| Colour | Zu messen | |||||
| Odour | Non-offensive | |||||
| Oily film and foam | Non-detectable | |||||
| Dissolved oxygen %O2 | > 50 | |||||
| Residual chlorine (mg/L) | < 2.0 | ≥ 0.5 | ≥ 0.5 - ≥ 2.5 (or equivalent disinfection) |
1 (or equivalent disinfection) | ||
| Residual bromine (mg/L) | 0.0 | |||||
| Sodium adsorption ratio (SAR) | Measured and reported only | |||||
| Total coliforms | < 10,000/100 mL | 10 | Median non-detectable Maximum 200 cfu/100 mL |
|||
| E.coli | 500-1000 cfu/100 mL (Inland waters) 250-500 cfu/100 mL (Coastal and transistional waters) |
< 1,000/100 mL | Non-detectable | Median non-detectable Maximum 200 cfu/100 mL |
Median 2.2/100 mL Maximum 200/100 mL |
< 10/100 mL |
| Legionalla pneumophila | 10/100 mL | |||||
| Intestinal enterrococci | 200-400 cfu/100 mL (Inland waters) 100-200 cfu/100 mL (Coastal and transistional waters) |
Non-detectable | ||||
| Pseudomonas aeruginosa | < 100/100 mL | |||||
| Helminths | < 1 helminth/L | |||||
| Protozoa | < 1 protozoa/50 litres | |||||
| Virus | < 1 virus/50 litres |
