THEORETICAL CONSIDERATIONS IN THE SELECTION OF THE OPTIMAL TECHNOLOGY FOR THE DEPOLLUTION OF A CONTAMINATED SOIL WITH LIQUID PETROLEUM PRODUCTS

2019 ◽  
Vol 21 (1) ◽  
pp. 113-120
Author(s):  
Mirela COMAN ◽  
◽  
Bogdan CIORUȚA ◽  
Keyword(s):  
Contaminated Soil ◽  
Petroleum Products ◽  
Optimal Technology ◽  
Theoretical Considerations ◽  
Selection Of

scholarly journals Selection of the optimal technology for cargo delivery in international traffic

2020 ◽  
Vol 0 (47) ◽  
pp. 44
Author(s):  
Yevgen Nahorniy ◽  
Olexandra Оrda ◽  
Denys Kondratenko
Keyword(s):  
Cargo Delivery ◽  
Optimal Technology ◽  
Selection Of ◽  
International Traffic

Effects of Soil Contamination on the Selection of Remediation Method

2015 ◽  
pp. 200-227 ◽  
Author(s):  
Ivica Kisić
Keyword(s):  
Soil Contamination ◽  
Natural Resources ◽  
Human Activity ◽  
Natural Resource ◽  
Contaminated Soil ◽  
Natural Activity ◽  
Harmful Substances ◽  
The Many ◽  
Renewable Natural Resource ◽  
Selection Of

Soil is a thin (up to 50cm) loose top layer of the Earth's surface, located between the lithosphere and atmosphere. Total available land area on Earth is limited, and the soil is extremely important, and in one generation it is a non-renewable natural resource. Unfortunately, nowadays the soil is, next to water, one of the most endangered natural resources. Among the many processes of soil damage, which is not being addressed at this point, is the growing importance placed on soil contamination. Contaminated soil is the soil in which human or natural activity has increased the content of harmful substances whose concentrations may be harmful to human activity, that is, for the production of plants or animals.

scholarly journals Potential risks of antibiotic resistant bacteria and genes in bioremediation of petroleum hydrocarbon contaminated soils

2020 ◽  
Vol 22 (5) ◽  
pp. 1110-1124 ◽  
Author(s):  
Colin J. Cunningham ◽  
Maria S. Kuyukina ◽  
Irena B. Ivshina ◽  
Alexandr I. Konev ◽  
Tatyana A. Peshkur ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Petroleum Hydrocarbon ◽  
Resistant Bacteria ◽  
Careful Selection ◽  
Bacterial Strains ◽  
Antibiotic Resistant ◽  
Potential Risks ◽  
Selection Of

The problems associated with potential risks of antibiotic resistance spreading during bioremediation of oil-contaminated soil are discussed. Careful selection of bacterial strains and pretreatment of organic wastes used as fertilizers are suggested.

Study on Plant-Microbial Remediation of Antibiotic and Heavy Metal Contaminated Soil

2014 ◽  
Vol 587-589 ◽  
pp. 816-819 ◽  
Author(s):  
Ning Chen ◽  
Su Chen ◽  
Lei Chao ◽  
Li Na Sun ◽  
Dong Mei Zheng ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Contaminated Soil ◽  
Research Priorities ◽  
Influential Factors ◽  
Future Research ◽  
Advantages And Disadvantages ◽  
Microbial Remediation ◽  
Heavy Metals Pollution ◽  
Selection Of

In the recent years, antibiotics and heavy metals have become common pollutants in soil. Plant-microbial remediation is promising for the management of antibiotics and heavy metals pollution in soil. This paper talks about the mechanization of plant-microbial remediation, finds the advantages and disadvantages about plant-microbial technology, summarizes the method of selection of the plant and microbial, influential factors, and discusses the future research priorities of plant-microbial remediation.

Parasites of carabid beetles: prevalence depends on habitat selection of the host

1991 ◽  
Vol 69 (5) ◽  
pp. 1216-1220 ◽  
Author(s):  
Johan Andersen ◽  
Arne Skorping
Keyword(s):  
Habitat Selection ◽  
Contaminated Soil ◽  
Host Species ◽  
Carabid Beetles ◽  
Riparian Species ◽  
Selection Of

The prevalence of endoparasitic nematodes (Mermithoidea and Heterotylenchus sp.) and the ectoparasitic fungi Laboulbenia spp. was examined in 14 riparian species of carabid beetles of the genus Bembidion. The values for Laboulbenia spp. and nematodes (Heterotylenchus sp) were 41.1 and 11.4%, respectively, in host species living in protected microhabitats (silty, more or less vegetated, often shady sites). In Bembidion species living in open microhabitats (open silty, sandy, or gravelly–stony sites with little or no vegetation) the prevalence of both parasites was less than 1%. The open microhabitats are more subject to floodwater scouring and erosion than the protected ones. This may explain the observed difference in prevalence, since the beetles are infected with the parasites through contact with contaminated soil.

scholarly journals Phytoremediation of Petroleum Products Contaminated Soil

2019 ◽  
pp. 1-8
Author(s):  
O. I. Akpokodje ◽  
H. Uguru
Keyword(s):  
Heavy Metals ◽  
Contaminated Soil ◽  
Agricultural Soils ◽  
Soil Analysis ◽  
Petroleum Products ◽  
Abelmoschus Esculentus ◽  
Engine Oil ◽  
Copper Level ◽  
Indiscriminate Disposal ◽  
The Impact

This study investigated the impact of petroleum products on the physiochemical properties, heavy metals and THC of soil samples; and their possible phytoremediation. Perforated plastic buckets were filled with 10 kg of sieved virgin topsoil. A mixture of 2 L of spent engine oil, 2 L of kerosene, 2 L of petrol and 2 L of diesel was gradually poured into each bucket and allowed to drain through the soil, once a day for five days, and there after left to stabilize for a period of 21 days. Fluted pumpkin (Telforia Occidentalis) and Okra (Abelmoschus esculentus, Cv. Kirikou) seeds were planted in buckets and closely monitored for 14 weeks. Soil analysis of the virgin topsoil, contaminated soil and remediated soil was done using standard methods. Tests results showed that the petroleum products significantly (p ≤0.05) altered the physicochemical properties, heavy metals and THC of the soil. From the results, the soil porosity decreased from 35% to 14%; specific gravity decreased from 2.34 to 1.35; the soil pH decreased from 7.05 to 5.34; the THC increased from 0,923 mg/kg to 964.35 mg/kg; copper level increased from 4.892 mg/kg to 7.729 mg/kg; the lead content increased from <0.0001 mg/kg to 1.128 mg/kg; while the iron content increased from 1251.2 mg/kg to 1587.9 mg/kg after the contamination. After the 14 weeks phytoremediation period, Telfairia occidentalis was able to degrade the THC in the soil from 964.35 mg/kg to 82.67 mg/kg; while Abelmoschus esculentus degraded the THC in the soil from 964.35 mg/kg to 104 mg/kg. Therefore, due to the harmful effects of the petroleum products on agricultural soils, laws banning their indiscriminate disposal of should be enforced.

scholarly journals Screening and selection of autochthonous fungi from leachate contaminated-soil for bioremediation of different types of leachate

2019 ◽  
Vol 25 (5) ◽  
pp. 722-734
Author(s):  
Yassine Zegzouti ◽  
Aziz Boutafda ◽  
Loubna El Fels ◽  
Miloud El Hadek ◽  
Fatou Ndoye ◽  
...  
Keyword(s):  
Contaminated Soil ◽  
Fusarium Solani ◽  
High Capacity ◽  
Fungal Growth ◽  
Sole Source ◽  
Fungal Species ◽  
Malt Extract ◽  
Enrichment Method ◽  
Different Types ◽  
Selection Of

This study aims to use contaminated soil with leachate to select autochthonous fungi that are able to bioremediate three types of leachate, (Young (YL), Intermediate (IL) and Old (OL)). Eleven fungal species were isolated via the enrichment method using the leachate as the sole source of carbon and energy. The isolates were evaluated for their ability to grow and remove organic pollutants at 100%, 50% and 25% (v/v) of leachate in both solid and liquid cultures that were spiked with malt extract. The results indicated that only three fungi, <i>Aspergillus flavus</i> (<i>A. flavus</i>-LC106118), <i>Aspergillus niger</i> (<i>A. niger</i>-KT192262) and <i>Fusarium solani</i> (<i>F. solani</i>-KX349467) showed significantly high capacity to grow on leachate, with maximum radial growth rates (Gr) of 7.5 mm, 4.7 mm , and 5.3 mm, respectively. In addition, 34%, 22%, and 27%, respectively of COD removal rates were obtained at 25% concentration in YL. A. flavus was the most tolerant fungus against landfill leachate, followed by <i>F. solani</i>, and finally <i>A. niger</i>. Therefore, these three fungi are good candidates for leachate bioremediation. However, for a better remediation, the combined effects of different types of fungi and leachates on the fungal growth need to be considered during the fungi selection.

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