Open AccessUtilization of sewage sludge as an ameliorant for reclamation of technogenically disturbed lands
Author(s) -
Т. А. Петрова,
Edelina Rudzisha
Publication year - 2021
Publication title -
zapiski gornogo instituta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.707
H-Index - 13
eISSN - 2541-9404
pISSN - 2411-3336
DOI - 10.31897/pmi.2021.5.16
Subject(s) - land reclamation , environmental science , sewage sludge , land restoration , sewage , organic matter , nutrient , biosolids , sediment , vegetation (pathology) , heavy metals , soil water , environmental engineering , waste management , agroforestry , environmental chemistry , ecology , soil science , chemistry , geology , engineering , medicine , paleontology , pathology , biology
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.