http://repository.iitr.ac.in/handle/123456789/15065
Title: | Hysteresis-based analysis of overland metal transport |
Authors: | Mishra, Surendra Kumar Sansalone J.J. Singh V.P. |
Published in: | Hydrological Processes |
Abstract: | Introducing a concept of equivalent mass depth of flow, this study describes the phenomenon of non-point source pollutant (metal) transport for pavement (or overland) flow in analogy with wave propagation in wide open channels. Hysteretic and normal mass rating curves are developed for runoff rate and mass of 12 dissolved and particulate-bound metal elements (pollutants) using the rainfall-runoff and water quality data of the 15 × 20 m2 instrumented pavement in Cincinnati, USA. Normal mass rating curves developed for easy computation of pollutant load are found to be of a form similar to Manning's, which is valid for open channel flows. Based on the hysteresis analysis, wave types for dissolution and mixing of particulate-bound metals are identified. The analysis finds that the second-order partial-differential equation normally used for metal transport does not have the efficacy to describe fully the strong non-linear phenomena such as is described for various metal elements by dynamic waves. In addition, the proportionality concept of the popular SCS-CN concept is extended for determining the potential maximum metal mass Mp of all the 12 elements transported by a rain storm and related to the antecedent dry period (ADP). For the primary metal zinc element, Mp is found to increase with the ADP and vice versa. Copyright © 2003 John Wiley and Sons, Ltd. |
Citation: | Hydrological Processes (2003), 17(8): 1579-1606 |
URI: | https://doi.org/10.1002/hyp.1200 http://repository.iitr.ac.in/handle/123456789/15065 |
Issue Date: | 2003 |
Keywords: | Heavy metals Hysteretic transport Mass transport Normal mass rating curves Overland flow |
ISSN: | 8856087 |
Author Scopus IDs: | 55463271000 57204999850 57211219633 |
Author Affiliations: | Mishra, S.K., National Institute of Hydrology, Roorkee 247 667, India Sansalone, J.J., Dept. of Civil/Environmental Eng., Louisiana State University, Baton Rouge, LA 70803-6405, United States Singh, V.P., Dept. of Civil/Environmental Eng., Louisiana State University, Baton Rouge, LA 70803-6405, United States |
Corresponding Author: | Mishra, S.K.; National Institute of Hydrology, Roorkee 247 667, India; email: nihr@sirnetd.ernet.in |
Appears in Collections: | Journal Publications [WR] |
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