scholarly journals CONTENT OF HEAVY METALS IN SOILS OF OIL-POLLUTED AREAS OF PRE-CARPATHIAN

2021 ◽  
pp. 83-88
Author(s):  
V. Lopushnyak ◽  
H. Hrytsulyak ◽  
O. Tonkha ◽  
O. Menshov ◽  
O. Pikovsʹka ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Heavy Metal Contamination ◽  
Petroleum Products ◽  
Podzolic Soils ◽  
Mobile Forms ◽  
Test Soil ◽  
Contamination Of Soils ◽  
Lead Nickel ◽  
Heavy Metals In Soils

The article highlights the results of research on the content of heavy metals in sod-podzolic soils of oil-contaminated areas of Ivano-Frankivsk region. Contamination of soils with petroleum products causes severe ecological consequences for ecosystems. The aim of the research was to study the peculiarities of the accumulation of heavy metals in the soil, underground part and vegetative mass of sylphia perforated in the conditions of cultivation in oil-contaminated areas. The content of mobile forms of heavy metals in soils did not exceed the norms in all variants of the experiment. During the cultivation of Sylphia perfoliatum, it grew in a number: cadmium → nickel → cobalt → lead. The concentration of heavy metals in the soil was determined, which reflects the change in the content of the element in the test soil relative to the content of metals in the background soil. The coefficients of concentration of mobile forms of heavy metals in oil-contaminated soil for the cultivation of perforated sylphia for the application of fertilizers based on sewage sludge and compost based on them increased in a number: cobalt → lead → nickel → cadmium. Peculiarities of heavy metals accumulation in the vegetative mass of perforated sylphia have been established. Indices of intra-tissue heavy metal contamination of the root system of sylphia perforated with the introduction of sewage sludge increase in the following series: cadmium → nickel → lead → cobalt. The maximum indices of contamination of sylphia roots permeated with cadmium, nickel and cobalt are observed for the introduction into the soil of ERUs at a rate of 40 t / ha and N10P14K58, lead – for the application of compost at a rate of 30 t/ha and N30K55. The lowest indices of intratissue contamination with heavy metals of the roots of sylphia perfoliatum were noted for the application of fertilizer N60P60K60.

scholarly journals HEAVY METAL CONTAMINATION OF SOILS IN THE NALAIKH REGION (MONGOLIA)

2021 ◽  
Author(s):  
B. Jargalsaihan ◽  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Human Health ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Long Period ◽  
Contamination Of Soils ◽  
Heavy Metals In Soils

The content of heavy metals in soils of the Nalaikh region, in which coal was mined for a long period, was investigated. The purpose of the work was to assess the possibility of ecological safe renovation of this territory. According to the results obtained, the level of contamination of most areas of the Nalaikh region with heavy metals is insignificant and cannot pose a threat to human health.

scholarly journals Bioavailability of heavy metals in soils amended with sewage sludge

2002 ◽  
Vol 82 (4) ◽  
pp. 433-438 ◽  
Author(s):  
M T Morera ◽  
J. Echeverría ◽  
J. Garrido
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Agricultural Land ◽  
Organic Matter Content ◽  
Dry Weight ◽  
Matter Content ◽  
Alkaline Soils ◽  
Toxic Heavy Metals ◽  
Heavy Metals Bioavailability ◽  
Heavy Metals In Soils

The recycling of sewage sludge to agricultural land results in the slow accumulation of potentially toxic heavy metals in soils. A greenhouse experiment was conducted to determine the bioavailability of Cu, Ni, Pb and Zn applied to soils in urban anaerobically stabilized sewage sludge. The soils were Lithic Haplumbrept (Lh), Calcixerollic Xerochrept (Cx1 and Cx2) and Paralithic Xerorthent (Px). Sunflower plants (Helianthus annuus L) were grown in the soils following amendment with the sludge. The addition of sewage sludge markedly increased the average dry weight of the plants in the soils that had lower yields without sludge addition (Lh, Cx2, and Px). The acid pH of the Lh soil favoured the bioavailability of Zn from sewage sludge. The bioavailability of Cu was greater in the alkaline soils than in the acidic soil (Lh), which can be attributed to the high organic matter content of the Lh soil which complexes Cu and impairs its uptake by the plants. The concentration of metals in the plants increased with the sewage sludge dose. The effect of the soil type on the metal concentration in plants was greater that the effect of the dose. Key words: Soils, sewage sludge, heavy metals, bioavailability, sunflower

Evolution of Available Heavy Metals in Soils Amended with Sewage Sludge Cocompost

2012 ◽  
Vol 20 (2) ◽  
pp. 105-119 ◽  
Author(s):  
G. Delgado ◽  
V. Aranda ◽  
A.L. Pérez-Lomas ◽  
J.M. Martín-García ◽  
J. Calero ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Heavy Metals In Soils

scholarly journals Heavy Metals Concentration in Contaminated Soils from Southern Part of Romania

2011 ◽  
Vol 68 (2) ◽  
Author(s):  
Diana FLORESCU ◽  
Andreea IORDACHE ◽  
Claudia SANDRU ◽  
Elena HORJ ◽  
Roxana IONETE ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Contaminated Soils ◽  
Metal Contamination ◽  
Industrial Waste ◽  
Heavy Metal Contamination ◽  
Land Application ◽  
Industrial Wastes ◽  
Treatment Processes ◽  
Contamination Of Soils

As a result of accidental spills or leaks, industrial wastes may enter in soil and in streams. Some of the contaminants may not be completely removed by treatment processes; therefore, they could become a problem for these sources. The use of synthetic products (e.g. pesticides, paints, batteries, industrial waste, and land application of industrial or domestic sludge) can result in heavy metal contamination of soils.

Influence of Decreasing Supplementation to Transformation of Chemical Forms of Ni, Zn and Cu During Composting of Sewage Sludge

2021 ◽  
Vol 23 ◽  
pp. 580-593
Author(s):  
Robert Sidełko
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Organic Carbon ◽  
Ion Exchange ◽  
Beneficial Effect ◽  
Sequential Extraction ◽  
Nitrogen Concentration ◽  
Chemical Forms ◽  
N Value ◽  
Mobile Forms

This paper pertains to the influence of decreasing supplementation to transformation of chemical forms of Ni. Zn and Cu during composting of sewage sludge. A universally used supplementing material constituting a rich source of organic carbon is straw. Addition of straw to sewage sludge is aimed at increasing C/N proportion up to at least 15 due to the risk of formation of toxic forms of nitrogen, concentration of which in sewage sludge is exceptionally high. We have presented in this paper the results of speciation research of three elements applying Tessier’s sequential extraction. It’s been proven that decreasing of straw share in the composted mixture with sewage sludge down to the level of C/N value below the admissible value, has a beneficial effect on the allocation of tested heavy metals towards the forms that are permanently bound in compost matrix. A systematic increase of organic (IV) and residual (V) fractions share and decrease of mobile forms of heavy metals content in bioavailable fractions i.e. ion-exchange (I) and carbonate (II) has been ascertained.

The effect of clay amendment on speciation of heavy metals in sewage sludge

1996 ◽  
Vol 34 (7-8) ◽  
pp. 413-420 ◽  
Author(s):  
L. Qiao ◽  
Goen Ho
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Sewage Sludge ◽  
Red Mud ◽  
Heavy Metal Contamination ◽  
Metal Speciation ◽  
Metal Mobility ◽  
Potential Hazard ◽  
Application Rates ◽  
Physico Chemical

When sewage sludge is used as a soil conditioner, heavy metal contamination can limit its application rates. The potential hazard of heavy metals is, however, dependent on the physico-chemical forms of the metals in the sludge and soil. Bauxite refining residue (red mud) has been used to reduce the mobility and availability of heavy metals in municipal solid waste compost. In the present research a sequential step extraction was employed to investigate metal speciation (into exchangeable, bound to carbonate, to Mn & Fe oxides, to organic matter and in residue phase) and the effect of red mud on metal speciation in sewage sludge for Cd, Cr, Cu, Ni, Pb and Zn. The effect of red mud addition on metal distribution in sewage sludge compost was significant. Red mud addition can effectively reduce the metal mobility and the potential hazard of releasing metals from sludge due to the further breakdown of organic matter. Drying of sludge makes heavy metals more available. Red mud addition will be desirable in such a case. Plant available metals (determined by DTPA extraction) are, however, not as effectively reduced except for Pb and Zn.

Investigation of the Dynamics of Accumulation of Mobile Forms of Heavy Metals, Benz-(a)-Pyrene and Petroleum Products in Soils of Urbanized Territories

2018 ◽  
Vol 22 (8) ◽  
pp. 39-43 ◽  
Author(s):  
N.N. Roeva ◽  
S.S. Voronich ◽  
A.G. Khlopaev ◽  
D.A. Zaitsev ◽  
N.S. Voronich
Keyword(s):  
Heavy Metals ◽  
Urban Development ◽  
Soil Cover ◽  
Petroleum Products ◽  
Annual Variability ◽  
Mobile Forms ◽  
Urbanized Areas ◽  
The City

In the large urban urbanized areas, which primarily include the land of Moscow, is developing specific soil and subsoil - urbanozem, the degree of man-made pollution of them by heavy metals, benz-(a)-pyrene and petroleum products is determined by many factors. The author 's estimation of the annual variability of the concentrations of mobile forms of heavy metals, benz-(a)-pyrene and petroleum products in soils of Moscow, based on analysis in 2015 and 2016 is presented. 90 samples at 30 monitoring sites. The object of the author's observation was the soil cover of the city as a whole and some of its natural and technogenic transformed species, as well as the soil cover, which is moved in the process of urban development.

scholarly journals Leaching of Heavy Metals in Soils Conditioned with Biosolids from Sewage Sludge

2019 ◽  
Vol 26 (spe1) ◽  
Author(s):  
Thaís Campos ◽  
Guilherme Chaer ◽  
Paulo dos Santos Leles ◽  
Marcelo Silva ◽  
Felipe Santos
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Heavy Metals In Soils
Sign in / Sign up

Export Citation Format

Share Document