Obtaining artificial soils for the biological protection system of railway and highway slopes
https://doi.org/10.52170/1815-9265_2023_65_55
Abstract
Soil is an important component in the system of biological protection of the road structure sloping part. The adaptive capacity of plants and the biological activity of soils based on peat, sand and sewage sludge were evaluated by biotesting using agricultural plants. It has been established that the use of sewage sludge does not lead to a significant increase in the accumulation of nitrates and heavy metals in the green mass of agricultural plants. Therefore, such sediments can be used as soil-improving additives in anthropogenically disturbed areas, mixed with fillers that create porosity and ensure water movement while minimizing leaching of ingredients. A variant of the technological scheme for preparing soil in the field is proposed, which provides for intensive mixing of sewage sludge with peat and sand, thermal shearing effect on the mixture, transportation, unloading and temporary storage for the purpose of the resulting soil phytoredimentation. The use of the newly developed technology will make it possible to obtain artificial soils that meet sanitary standards for pathogenic microorganisms, the content of heavy metal salts and organic ecotoxicants, and also meet the requirements for soils for the biological protection of railway and highway slopes.
About the Author
S. A. Shakhov
Siberian Transport University
Russian Federation
Russian Federation
Sergey A. Shakhov – Professor of the Hydraulics, Water Supply, Chemistry Department, Doctor of Engineering
Novosibirsk
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Review
For citations:
Shakhov S.A. Obtaining artificial soils for the biological protection system of railway and highway slopes. Bulletin of Siberian State University of Transport. 2023;(2):55-63. (In Russ.) https://doi.org/10.52170/1815-9265_2023_65_55
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