Most Rapid BOD Assimilation in Ganga and Yamuna Rivers

Bhargava, D. S.

doi:10.1061/(asce)0733-9372(1983)109:1(174)

Cited by 53 publications

(48 citation statements)

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“…The classical models for BOD and DO with the inclusion of bio-flocculation and settling of organic matter, were modified by Bhargava (1983), who applied the settling concept in addition to the first-order decay concept in large rivers of India having high discharges.…”

Section: Literature Reviewmentioning

confidence: 99%

“…The values of settleable BOD, p, proposed by Bhargava (1983) were used for the analysis. The sensitivity of the parameter was tested by varying the values of fraction of settleable BOD, p, and the optimum values of p for the River Kali were thus obtained.…”

Section: Physio-chemical Analysismentioning

confidence: 99%

“…Looking at the river dynamics and pollution aspects, the equations developed by , Camp (1963), Bhargava (1983), Thomann & Müller (1987) and Jolankai (1997) were found to be suitable for the simulation of BOD and DO in the River Kali. The governing equations used are as described below, apart from those for the Streeter & Phelps model, which are given as equations (1)-(2).…”

Section: Mathematical Equationsmentioning

confidence: 99%

“…Subsequent to , several other BOD-DO models and concepts were introduced in the past (Theriault, 1927;Fair, 1939;Thomas, 1948;Li, 1962Li, , 1972Camp, 1963;Gundelach & Castillo, 1976;van Genuchten & Alves, 1982;Bhargava, 1983;Thomann & Müller, 1987;Jolankai, 1997, Yu et al, 1991Adrain et al, 1994). The present study is undertaken to gain insight into existing water quality models suitable for BOD and DO simulations in the River Kali, India.…”

Section: Introductionmentioning

confidence: 99%

“…The present study is undertaken to gain insight into existing water quality models suitable for BOD and DO simulations in the River Kali, India. For this, commonly used models developed by Camp (1963), Bhargava (1983), Thomann & Müller (1987) and Jolankai (1997) have been tested for their applicability to estimate BOD and DO in the River Kali, which is one of the most polluted rivers in India (Jha et al 2005a,b). These models include the effects of non-point load, benthic oxygen demand, photosynthesis, respiration, settling of organic matter and longitudinal variation of mass flux (the product of flow and concentration) based on first-order decay kinetics of organic matter.…”

Section: Introductionmentioning

confidence: 99%

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Critical appraisal of BOD and DO models applied to a highly polluted river in India

Jha¹,

Ojha

Bhatia³

2007

Hydrological Sciences Journal

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Most commonly used biochemical oxygen demand (BOD) and dissolved oxygen (DO) models have been tested for their applicability in the River Kali, which is one of the most polluted rivers in India. A total of 732 field data sets were generated during field survey from March 1999 to February 2000. The modelling of BOD and DO in the River Kali involves derivation and solution of the governing equations that describe concentration change with time and space brought on by advective, decay, settling and loading functions. However, due to continuous discharges (e.g. from wastewater treatment plants) and steady-state flow conditions in the River Kali, the dispersion effects are found to be insignificant. In the analysis, the model parameters used in BOD-DO models were optimized using the Newton-Raphson technique and the performance of different models was evaluated using correlation statistics (r 2 ) and error estimation, viz. standard error (SE) and mean multiplicative error (MME). The results indicate that the BOD-DO models developed after Camp (1963) yielded the best agreement with the observed values as compared with several other approaches. Mots clefs demande biochimique en oxygène (DBO

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Section: Literature Reviewmentioning

confidence: 99%

Section: Physio-chemical Analysismentioning

confidence: 99%

Section: Mathematical Equationsmentioning

confidence: 99%