Engineered waste materials as amendments to prevent erosion and to stabilize contaminated sites

S. P. Kakuturu, M. Xiao, L. N. Reddi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Erosion is an important consideration in remediation strategies of slopes at contaminated sites such as mine tailings. Pelletized waste materials offer the dual advantages of waste utilization and soil erosion prevention at such sites. These materials could be designed to reduce stormwater runoff by optimizing their infiltration capacities, to trap the eroded soil particles and pollutants before they get to the nearby lakes and streams, and store sufficient moisture for supporting vegetation. In this paper, we present the results of our study that focused on flow, erosion, and filtration through an erosion control blanket built with three different particle size ranges of pelletized waste materials. The finest gradation is used on the upper portion of the slope, and the medium and coarse gradations are used in the lower portions to act as graded filters for the upper portion. The density, gradation, and erodibility properties of the waste materials are used for calculating the flow, internal erosion, filtration, and moisture retention in the erosion control blanket. The model is intended to aid in the engineering design of erosion-resistant blankets on slopes. It optimizes the physicochemical and hydraulic characteristics of the pelletized waste materials to fulfill diverse functions of an erosion blanket, viz., erosion resistance, runoff inhibition, moisture retention to support vegetation, and controlled infiltration.

Original languageEnglish (US)
Title of host publicationProceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009
Subtitle of host publicationGreat Rivers
Pages1047-1054
Number of pages8
DOIs
StatePublished - Oct 26 2009
EventWorld Environmental and Water Resources Congress 2009: Great Rivers - Kansas City, MO, United States
Duration: May 17 2009May 21 2009

Publication series

NameProceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers
Volume342

Other

OtherWorld Environmental and Water Resources Congress 2009: Great Rivers
CountryUnited States
CityKansas City, MO
Period5/17/095/21/09

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)

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    Kakuturu, S. P., Xiao, M., & Reddi, L. N. (2009). Engineered waste materials as amendments to prevent erosion and to stabilize contaminated sites. In Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers (pp. 1047-1054). (Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers; Vol. 342). https://doi.org/10.1061/41036(342)105