DESIGN OF WASTEWATER STORAGE PONDS AT LAND TREATMENT SITES. II: EQUILIBRIUM STORAGE PERFORMANCE FUNCTIONS

This paper presents a reliability-based method for sizing wastewater storage ponds at land application sites. The governing integral equation is derived and explained, and the wastewater inflow and outflow are treated as random, thus giving a more general solution of the pond design problem. Results from the proposed reliability-based method and from a conventional analysis are compared, and this provides new insights into conventional pond design practice. The proposed approach assumes that wastewater inflows and outflows at the pond are not known with certainty but rather must be treated as random variables with some probability distribution. Monte carlo simulation is used to estimate the steady-state cumulative distribution function of wastewater storage in the pond. A design method is presented to identify a suite of pond configurations which satisfy some prescribed reliability. Although the procedure focuses on land treatment systems using slow rate irrigation, the general principles apply to any land treatment alternative or other storage process where the probability distribution of the net inflows can be estimated.

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  • Accession Number: 00488347
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 30 1989 12:00AM