Grey without treatment can ...
Published by Majed Murad
Grey without treatment can pose health risk.
With regard to grading e.g. flowers, it could be used in restricted area (fenced area) where no access allowed. However you have to bear in your mind that by time the concentration of detergents and other elements will have a detrimental impact on soil and plant's growth.
For toilet flushing you need at least residual chorine -0.5 to 1mg/l to ensure some safety. The danger of not treating and disinfection grey water, by time, will encourage growth in the e.g. toilet tank and toilet tank will be an incubator to microbiological pathogens.
In some country using unauthorized grey water is illegal.
Should you required further clarification, please do not hesitate to contact me.
Regards,
Majed Murad, BSc, MSc, CEng, C.WEM, FCIWEM, CEnv.
Email: majedmurad@hotmail.com
1 Comment
In Belgium it is mandatory to re-use rain water (which is considered 'grey') without problems.
Published by vincent de Laat, Brabant Water NV - Business development analist