TY - JOUR
T1 - Using bio-mulch for dust stabilization (case study
T2 - Semnan province, Iran)
AU - Khojasteh, Davood Namdar
AU - Bahrami, Hossein Ali
AU - Kianirad, Mehran
AU - Sprigg, William
N1 - Funding Information:
This work was financially supported by Tarbiat Modares University (TMU). The authors express their deepest appreciation to A. Shojaodini and S. Rangrizi for the technical support and to the Iranian Research Organization for Science and Technology (IROST) for guidance and support.
PY - 2017
Y1 - 2017
N2 - The use of bio-mulches to stabilize dust has gained worldwide attention during the last five decades. We report herein on a study of the application of 20 new types of bio-mulches as stabilizing agents. To understand the effect of new bio-mulches on dust stabilization, several tests have been applied for strength, structural stability and wind erosion. Fourier Transforms Infrared and Scanning Electron Microscopy have been applied on untreated and treated soil samples. Bio-mulch modified mechanisms have been analysed. Wind erosion and aggregate stability test results clearly indicate that certain biomulch specimens were useful in controlling dust in relatively arid and semiarid areas. The Scanning Electron Microscopy images show that when bio-mulches were applied to sandy soil, some voids in the soil were filled, while other parts stayed on the surface of soil aggregates. The molecular structure of polyelectrolyte groups reacted chemically with positive ions of the clay grain and created physicochemical bonds between molecules and soil aggregates with ionic, hydrogen or Vander Waals bonds. Untreated samples had no bonds between molecules and soil aggregate, and the strength and erosion resistance were weak.
AB - The use of bio-mulches to stabilize dust has gained worldwide attention during the last five decades. We report herein on a study of the application of 20 new types of bio-mulches as stabilizing agents. To understand the effect of new bio-mulches on dust stabilization, several tests have been applied for strength, structural stability and wind erosion. Fourier Transforms Infrared and Scanning Electron Microscopy have been applied on untreated and treated soil samples. Bio-mulch modified mechanisms have been analysed. Wind erosion and aggregate stability test results clearly indicate that certain biomulch specimens were useful in controlling dust in relatively arid and semiarid areas. The Scanning Electron Microscopy images show that when bio-mulches were applied to sandy soil, some voids in the soil were filled, while other parts stayed on the surface of soil aggregates. The molecular structure of polyelectrolyte groups reacted chemically with positive ions of the clay grain and created physicochemical bonds between molecules and soil aggregates with ionic, hydrogen or Vander Waals bonds. Untreated samples had no bonds between molecules and soil aggregate, and the strength and erosion resistance were weak.
KW - Bio-mulch
KW - Dust stabilization
KW - Dust storm
KW - Wind erosion
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M3 - Article
AN - SCOPUS:85038599469
SN - 0972-6268
VL - 16
SP - 1313
EP - 1320
JO - Nature Environment and Pollution Technology
JF - Nature Environment and Pollution Technology
IS - 4
ER -