Using Bio-mulch for Dust Stabilization (Case Study: Semnan Province, Iran)

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 applie...

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Bibliographic Details
Published inNature environment and pollution technology Vol. 16; no. 4; pp. 1313 - 1320
Main Authors Khojasteh, Davood Namdar, Bahrami, Hossein Ali, Kianirad, Mehran, Sprigg, William
Format Journal Article
LanguageEnglish
Published Karad Technoscience Publications 01.12.2017
Subjects
Aggregates
Air pollution
Arid regions
Biopolymers
Bonding strength
Case studies
Cellulose
Chemical bonds
Clay
Dust
Dust control
Electron microscopy
Emissions
Engineering
Erosion mechanisms
Erosion resistance
Fourier transforms
Grain
Molecular structure
Mulches
Polyelectrolytes
Polymers
Positive ions
Sandy soils
Scanning electron microscopy
Shear strength
Soil aggregates
Soil erosion
Soil sciences
Soil strength
Soil structure
Soil treatment
Soils
Stability analysis
Structural stability
Wind erosion
Iran
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Summary: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.
ISSN:0972-6268
2395-3454