Reliability analysis of an advanced water treatment facility
The evaluation of wastewater treatment plant reliability is an important component in the assessment of potential impacts associated with any wastewater discharge of water reuse project. The reliability of the San Diego Aqua III Advanced Water Treatment (AWT) facility is probabilistically analyzed using data collected between October 1994 and September 1995. Reliability is evaluated in terms of the facility's ability produce a consistent effluent quality and the probability of failure of mechanical components. The analysis includes characterizing the effluent from individual unit processes in terms of magnitude and variability of concentration of a number of pollutants, and expressing the mechanical reliability of the system in terms of equipment availability. Pollutants used to characterize treatment performance include physical parameters, nitrogen compounds, anions, trace and major metals, organic compounds, and bacteriological indicators. The results show that the Aqua III AWT produced a highly consistent effluent with minimal variation, and that the mechanical systems were available nearly 100% of the time. It is demonstrated that mechanical failures did not significantly affect effluent quality. The methodology that was used for this analysis is applicable to any continuous treatment or production process in which the effectiveness of individual process units can be determined by direct measurements or by analysis of specific or indicator constituents.
- Research Organization:
- Public Health Inst., Oakland, CA (US)
- OSTI ID:
- 20014901
- Resource Relation:
- Conference: 1998 National Conference on Environmental Engineering, Chicago, IL (US), 06/07/1998--06/10/1998; Other Information: PBD: 1998; Related Information: In: Water resources and the urban environment--98, by Wilson, T.E. [ed.], 754 pages.
- Country of Publication:
- United States
- Language:
- English
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