Affiliations: Department of Water Pollution Control Technology,
Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences,
Beijing 100085, China
Abstract: A water quality model for water reuse was made by mathematics
induction. The relationship among the reuse rate of treated wastewater (R),
pollutant concentration of reused water (C_s), pollutant
concentration of influent (C_0), removal efficiency of
pollutant in wastewater (E), and the standard of reuse water were discussed in
this study. According to the experiment result of a toilet wastewater treatment
and reuse with membrane bioreactors, R would be set at less than 40%, on which
all the concerned parameters could meet with the reuse water standards. To
raise R of reuse water in the toilet, an important way was to improve color
removal of the wastewater.
Keywords: water quality model, reuse rate, wastewater treatment, water reuse
