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Edelina Rudzisha
Edelina Rudzisha
postgraduate Student
Saint Petersburg Mining University
postgraduate Student
Saint Petersburg Mining University
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Geotechnical Engineering and Engineering Geology
  • Date submitted
    2021-03-05
  • Date accepted
    2021-09-07
  • Date published
    2021-10-29

Utilization of sewage sludge as an ameliorant for reclamation of technogenically disturbed lands

When rehabilitating technogenically disturbed lands of mining facilities, fertilizers and ameliorants are to be applied due to the lack of organic matter and nutrients required for the restoration of the soil and vegetation layer. The use of unconventional fertilizers (ameliorants) based on sewage sludge is one of the actual directions of land reclamation at mining sites. The purpose of the work is to summarize and analyze up-to-date information on the effectiveness of the use of sewage sludge for the reclamation of technogenically disturbed lands of mining and processing industries. The analysis is based on a review of recent studies aimed at assessing the impact of introduced sediment on soils, plant communities, and rehabilitated areas. The introduction of sewage sludge has a positive effect on the physical and chemical parameters of the soil (optimizes density and aggregation), saturates it with nutrients, i.e. N, P, K, Ca, Mg, and Na, thus improving plant growth indicators. However, it may contain a number of heavy metals and pathogens; therefore, studies of each sediment and conditions of reclaimed areas are necessary.

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Tatyana A. Petrova, Edelina Rudzisha (2021) Utilization of sewage sludge as an ameliorant for reclamation of technogenically disturbed lands. Journal of Mining Institute. Vol 251. p. 767-776. DOI: 10.31897/PMI.2021.5.16