Using a membrane bioreactor to reclaim wastewater
Journal Article
·
· Journal of the American Water Works Association
OSTI ID:290202
- Univ. of Cincinnati, OH (United States). Dept. of Civil and Environmental Engineering
- Centre International de Recherche Sur l`Eau et l`Environnement, Le Pecq (France)
A pilot-scale membrane bioreactor sufficiently purified simulated municipal wastewater for indirect recharge to groundwater or nonpotable uses. Throughout more than 500 days of steady-state operation, total organic carbon concentrations of <1.1 mg/L and chemical oxygen demand of <3.5 mg/L were consistently achieved. No suspended solids were detected in the effluent during this period. The treated water was fully nitrified, resulting in low ammonia and organic nitrogen concentrations but high nitrate concentrations. Cyclic oxic-anoxic operation of an additional denitrification process would be necessary to meet potable water reuse standards. Phosphorus was fully used in the bioreactor for biological growth. Heterotrophic bacteria and MS-2 viruses were completely retained by the membrane system, reducing the extent of final disinfection required.
- OSTI ID:
- 290202
- Journal Information:
- Journal of the American Water Works Association, Journal Name: Journal of the American Water Works Association Journal Issue: 11 Vol. 90; ISSN 0003-150X; ISSN JAWWA5
- Country of Publication:
- United States
- Language:
- English
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