An innovative greywater treatment system for urban areas ... - SuSanA

widely, depending on the directive or standard. While restrictive standards (as in Japan and
in the USA) regulate the absence of faecal coliform bacteria, more pragmatic approaches (as
in Germany) refer to the quality of bathing water RL 2006/7/EG, (2006) and give limit values
for total coliform bacteria (Paris, 2009b).
Table 3: Directives and standards for inner-urban recycling of water; (Paris, 2009b; RL 2006/7/EG,
2006)
Parameter Unit Countries
EU USA Germany China Australia Japan
RL
BOD5 mg/l No
2006/7/
EG, 2006;
bathing
water
quality
require-
ment
Turbidity NTU No
Micro-
biological
quality
require-
ment