scholarly journals Scientific and technological bases of creation of artificial geochemical barriers on the basis of siliceous natural materials for protection of environment against heavy metals and padionuclides

2011 ◽  
Vol 0 (4) ◽  
pp. 145
Author(s):  
S. Kozhakhmetov ◽  
G. Mamytbekov ◽  
G. Kalmenova ◽  
R. Beremzhanov
Keyword(s):  
Heavy Metals ◽  
Natural Materials ◽  
Geochemical Barriers ◽  
Artificial Geochemical Barriers

scholarly journals RESTORATION OF SOILS CONTAMINATED WITH RADIONUCLIDES BY PHYTOREDOMEDIATION METHOD

2020 ◽  
pp. 151-155
Author(s):  
I.V. Udalov ◽  
V.A. Peresadko ◽  
O.V. Polevich ◽  
A.V. Kononenko
Keyword(s):  
Model Experiment ◽  
Toxic Elements ◽  
Vegetation Period ◽  
Soil Restoration ◽  
Soil Conditions ◽  
Geochemical Barriers ◽  
Artificial Geochemical Barriers

The possibility of soil restoration by means of phytotechnology and artificial geochemical barriers (GB) from contamination by radionuclides (RN) and toxic elements (TE) is methodologically substantiated. For this purpose, a number of artificial GBs were created at a special landfill within the framework of a model experiment. The process of formation and development of barriers, their parameters are investigated. Agrophytocenosis cultures were selected for optimal phytostabilization of soil conditions. The study of phytoextraction of TE and RN by agrophytocenosis cultures during one complete vegetation period was performed. Some selectivity of the investigated plants for extraction of different TEs and RNs from soils and material of barriers was revealed.

Removal Efficiency of Heavy Metals Using Various Resins and Natural Materials

2012 ◽  
Vol 12 (19) ◽  
pp. 2065-2070 ◽  
Author(s):  
P.P. Vaughan ◽  
M.P. Bruns ◽  
C.L. Beck ◽  
M. Cochran
Keyword(s):  
Heavy Metals ◽  
Removal Efficiency ◽  
Natural Materials

scholarly journals METALS IN OILED PEAT (WESTERN SIBERIA)

2011 ◽  
pp. 67-79
Author(s):  
Yu. Vodianitsky ◽  
A. Savichev ◽  
S. Trofimov ◽  
E. Shishkonakova
Keyword(s):  
Condition Monitoring ◽  
Western Siberia ◽  
Soil Condition ◽  
The State ◽  
Peat Bog ◽  
Peat Layer ◽  
Geochemical Barriers ◽  
Artificial Geochemical Barriers

The study of metals in oil-contaminated peat has double meaning. Firstly, it is diagnostic as convenient and simple The method of soil condition monitoring, and secondly, the ecological method to predict the state of the peat bog as a biocenosis element. Every pollutant elements in contaminated peat are divided into two bands. Some of them (Ti, V, Cr, Ni, Zr, Ba, Y, La, Ce, Nd) accumulate in the upper, bituminous layer of peat. Other elements (halogen chlorine, as well as metals: Ca, Mp, Zn, Cu, Sr), on the contrary, migrate deep into the peat layer with light fractions hydrocarbons. For capturing particularly moving Cu metals, Zn needs to be equipped with artificial geochemical barriers to prevent pollutants from entering groundwater and open ponds.

scholarly journals Removal of metals from technogenic waters from abandoned coal mines using geochemical barriers

2019 ◽  
Vol 14 (3) ◽  
pp. 560-569
Author(s):  
Olga D. Arefieva ◽  
Valentina G. Tregubova ◽  
Natalya V. Gruschakova ◽  
Elena F. Grinenko
Keyword(s):  
Power Plant ◽  
Soil Column ◽  
Coal Mines ◽  
Natural Materials ◽  
Geochemical Barriers ◽  
Coal Burning ◽  
Abandoned Coal Mines ◽  
Kovdor Deposit ◽  
Cu And Zn ◽  
Technogenic Waters

Abstract A study was made of the possibility of using natural materials (vermiculites, zeolite) and wastes (ash from the Partizansk Coal-Burning Power Plant) as sorbents in geochemical barriers to manage discharges (technogenic waters) from abandoned coal mines and reduce metal concentrations to established, acceptable standards. Vermiculite from the Kovdor deposit was shown to reduce the concentrations of Fe, Co, Ni, Cu, and Zn cations, in both direct and inverse soil column models, by between two and five times.

BIOSORPTION OF HEAVY METALS IN POLLUTED WATER USING NATURAL MATERIALS AS BIO-ADSORBENT

2021 ◽  
Vol 14 (01) ◽  
pp. 333-342
Author(s):  
D. Mahilang ◽  
M. Hait ◽  
T. Pendharkar ◽  
U. Jana ◽  
S. R. Panda
Keyword(s):  
Heavy Metals ◽  
Polluted Water ◽  
Natural Materials ◽  
Biosorption Of Heavy Metals
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