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Title: Polynomilalization of bhargava models for DO sag elements
Authors: Bhargava D.S.
Tyagi B.
Gakkhar S.
Published in: Journal of the Institution of Engineers (India): Environmental Engineering Division
Abstract: The existing DO sag models of Streeter-Phelps have become obsolete in the present day context o, polluted streams in which a part of the BOD removal necessarily takes place through sedimentation which aspect is not accounted for in the Streetei-Phelps models. Bhargava's theoretically deriveo models for the DO sag parameters takes account of the almost linear removal of the settleable BOL along with the exponential decay of the non-settleable BOD. However, for the DO sag elements, the Bhargava models have two expressions, one each for times less than or greater than the transition time in which all the settleable BOD is removed. Polynomial zed forms of thé Bhargava models for the DO sag elements are developed which are shorter, simpler, single expression equivalent substitute and universally applicable without any regard to the transition time. Unlike the Streeter-Phelps or Bharga va models, the presented polynomial forms of Bharga va models have an additional advantage of evaluating the critical and inflexion dissolved oxygen deficit concentration directly and without first determining the times of occurrence of such concentrations. The material presented would add to the existing litera ture on the subject.
Citation: Journal of the Institution of Engineers (India): Environmental Engineering Division (2008), 88(MAR.): 43-55
Issue Date: 2008
Keywords: Bhargava do sag models
Do sag elements
Polynomialization of do sag models
Polynomialized models
ISSN: 0251110X
Author Scopus IDs: 35568239200
Author Affiliations: Bhargava, D.S., Roorkee University, Roorkee, India
Tyagi, B., Department of Mathematics, Galgotia College of Engineering and Technology, Noida, India
Gakkhar, S., Department of Mathematics, Indian Institute of Technology, Roorkee, India
Corresponding Author: Bhargava, D.S.; Roorkee University, Roorkee, India
Appears in Collections:Journal Publications [MA]

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