Перегляд за Автор "Zaitseva, E."

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    Improving the technology of soil treatment, contaminated by heavy metals using soil amendments
    (2021) Zaitseva, E.; Krusir, G.
    The purpose of the study is to investigate the effect of various organic and inorganic soil amendments on the degree of purification of soils contaminated with heavy metals (HM). The focus was on biological - "soft" methods in terms of environmental impact, as a way to remediate the soil in situ in order to clean the soil from HM. The scientific novelty of the work is to determine the effectiveness of the use of soil amendments for cleaning soils from HM.
  • Документ
    Organic waste disposal with using of improvement method of vermicultification by Californian worms (Eisenia fetida)
    (2020) Zaitseva, E.
    As part of this research work, an efficient and environmentally friendly technology for the disposal of organic wastes based on vermiculture of the California worm (Eisenia fetida) has been substantiated and developed. The developed technology allows not only to fully utilize vegetable raw materials, but also to obtain a valuable fertilizer for increasing yields (biohumus) and a source of animal protein for food (worm biomass). The studies have made it possible to determine the most rational parameters of the substrate for cultivation of the California red worm (Eisenia fetida), which will significantly increase the yield of free humic acids, and therefore - to improve the quality of biohumus (pH = 6.5 -7.0, temperature - 18 -25 ° C, humidity -70-80%). It is experimentally found that the best variant of solid organic substrate on which the red worm (Eisenia fetida) is cultivated, as well as undergoing the most efficient disposal of waste is potato peel, cabbage, apple peel, tea in a ratio of 2:1:1:1:1. It is found that the best variant of the substrate based on wastewater MPP and activated sludge is the option with a weight ratio.Studies have shown that the cultivation of the California worm (Eisenia fetida) on plant substrates processes of destruction of dietary fibers. Technology for the disposal of organic food waste and WFP waste and activated sludge using the cultivation of the red California worm (Eisenia fetida) has been developed, and each step of the technological process has been described, indicating the optimal technological parameters obtained through experimental studies