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1

Environmental impact of landfill on soils - the example of the Czech Republic

100%
Vaverkova D., Zloch J., Radziemska A., Adamcova D.
Polish Journal of Soil Science
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2017
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tom 50
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nr 1
This study focuses on the impact of a municipal solid waste (MSW) landfill on the environment. Phytotoxicity test was determined to assess ecotoxicity of landfill soil (Zdounky-Kuchyňky). White mustard (Sinapis alba L.) and barley (Hordeum vulgare L.) plants were allowed to grow in earthen pots, treated with soil samples to study the potential effect of landfill to the plant biomass production. Twenty-one days from the establishment of the experiment, sprouts and the number of growing plants occurring in the earthen pots were counted. The conducted research shows that the soil from the area of the landfill is not phytotoxic. According to the results of this research, it is possible to claim that the Zdounky-Kuchyňky MSW landfill is not a considerable source of pollution for the environment in present days.
2

Removal of landfill leachate toxicity by adsorption on white rot fungi (Pleurotus ostreatus)

100%
Adamcova D., Radziemska M., Zloch J., Vaverkova M. D.
Polish Journal of Natural Sciences
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2017
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tom 32
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nr 4
Municipal solid waste landfills are considered to be important sources of groundwater contamination due to the leakage of leachate. Landfill leachate is undoubtedly one of the most challenging wastewaters in terms of treatment. Fungi can be used to treat a landfill leachate. Therefore, the aims of this research were to evaluate the biosorption potential of Pleurotus ostreatus as low-cost adsorbent for the toxicity removal from raw landfill leachate. The objective was also to study the change of leachate toxicity before and after biosorption tests using Sinapis alba L. growth inhibition test. It can be concluded that the growth inhibition (%) of Sinapis alba L. for landfill leachate samples after biosorption tests were in the range of 31.55–96.16%. These samples were strongly toxic, but the toxicity compared to samples before biosorption tests decreased for all samples.
3
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Research of the biodegradability of degradable/biodegradable plastic material in various types of environments

88%
Adamcova D., Radziemska M., Fronczyk J., Zloch J., Vaverkova M. D.
Przegląd Naukowy. Inżynieria i Kształtowanie Środowiska
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2017
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tom 26
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nr 1[75]
Research of the biodegradability of degradable/biodegradable plastic material in various types of environments. Research was carried out in order to assess biodegradability of degradable/biodegradable materials made of HDPE and mixed with totally degradable plastic additive (TDPA additive) or made of polyethylene (PE) with the addition of pro-oxidant additive (d2w additive), advertised as 100% degradable or certified as compostable within various types of environments. Research conditions were: (i) controlled composting environment – laboratory-scale, (ii) real composting conditions – domestic compost bin, (iii) real composting conditions – industrial composting plant and (iv) landfill conditions. The results demonstrate that the materials made of HDPE and mixed with totally degradable plastic additive (TDPA additive) or made of polyethylene (PE) with the addition of pro- -oxidant additive (d2w additive) or advertised as 100% degradable did not biodegrade in any of the above-described conditions and remained completely intact at the end of the tests. Biodegradation of the certified compostable plastic bags proceeded very well in laboratory-scale conditions and in real composting conditions – industrial composting plant, however, these materials did not biodegrade in real composting conditions – domestic compost bin and landfill conditions.
4

Does the addition of soil amendments have a positive influence on landfill soils?

76%
Vaverkova M. D., Zloch J., Adamcova D., Radziemska M., Boas Berg A., Mazur Z.
Polish Journal of Soil Science
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2018
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tom 51
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nr 2
Waste disposal in landfills is one of most frequently used methods of municipal solid waste (MSW) management. Landfills disturb to a certain extent the landscape character and disposal of waste in landfils represents one of human activities that may impair natural ecosystems. Due to waste decomposition, numerous chemical, physical and biological reactions and changes occur within the landfill body that give rise to dangerous and harmful substances. One of the problems very often occurring in the landfill surrounding is soil contamination. This study is focused on the assessment of soils contamination due to the operation of sanitary MSW landfill. The aim was to determine the effect of diatomite and compost on soil phytotoxicity. Toxicity was assessed in a pot experiment with soil amendments. Soil samples (sample 1–4) for the experiment were taken from the landfill site (sample 1–3) and its surrounding (sample 4). The aim of this study was to check relation between soil amendments added to the soil sample and the amount of biomass produced by some plant species (Sinapis alba L., Hordeum vulgare L.). In this study soil amendments improved soil characteristics. The paper shows that a higher percentage of biomass weight increase was recorded in samples 1, 2, 3 and 4 with the addition of compost. As compared with the addition of diatomite, biomass weight in the samples with the added compost increased on average by 67.25%. Therefore, it can be stated that the addition of diatomite did not advance the plant growth as much as the addition of compost. The potential of using soil amendments in practice is promising.
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