Cadmium status in chernozem of the Krasnodar Krai (Russia) after the application of phosphogypsum

Batukaev, Abdulmalik; Endovitsky, Anatoly P.; Kalinichenko, V. P.; Mischenko, N; Minkina, Tatiana; Mandzhieva, Saglara; Sushkova, Svetlana; Bakoyev, Sirojdin Y.; Rajput, Vishnu D.; Shipkova, G.V.; Litvinov, Yuri

doi:10.3176/proc.2017.4.17

Cited by 9 publications

(7 citation statements)

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“…The data were used for calculation of Pb equilibrium concentration in the water extract based on the thermodynamic mathematical model ION-2 of the soil solution macroion equilibrium form equation system. 1 , 41 − 43…”

Section: Resultsmentioning

confidence: 99%

“…Water extract macroion analytical content data in Haplic Chernozems (South Russia) after phosphogypsum apply were obtained in the model experiment (Table ). The data were used for calculation of Pb equilibrium concentration in the water extract based on the thermodynamic mathematical model ION-2 of the soil solution macroion equilibrium form equation system. ,− …”

Section: Resultsmentioning

confidence: 99%

“…The total content of Cd 2+ in the phosphogypsum is of 2.76 mg kg −1 and the content of Cd 2+ water-soluble form is of 0.33 mg kg −1 . 41 The F total content is of 0.12%. 79 4.1.2.…”

Section: Discussionmentioning

confidence: 99%

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Chemical Soil-Biological Engineering Theoretical Foundations, Technical Means, and Technology for Safe Intrasoil Waste Recycling and Long-Term Higher Soil Productivity

et al. 2020

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The amelioration and remediation technology was developed on the basis of research of phosphogypsum and utilization in the Haplic Chernozem of South-European facies (Rostov Region). Phosphogypsum was utilized via dispersed application into a soil layer of 20–45 cm with intrasoil milling of this layer. The phosphogypsum utilization doses were 0, 10, 20, and 40 t ha –1 . The Pb analytical content in soil solution was studied in the model experiment. The soil solution Pb thermodynamic forms were calculated. The mathematical chemical–thermodynamic model ION-2 was developed to calculate the real soil solution (water extract) calcium-carbonate equilibrium (CCE) ion forms, considering the ion pair association. The associated ion pairs CaCO 3 0 , CaSO 4 0 , MgCO 3 0 , MgSO 4 0 , CaHCO 3 + , MgHCO 3 + , NaCO 3 – , NaSO 4 – , CaOH + , and MgOH + were accounted for in soil solution equilibrium macroion form calculation. The procedure for the microelement ion [including heavy metals (HMs)] equilibrium concentration in the soil solution coefficient k as calculation was proposed to account for the real soil solution CCE, macroions, and HM (including Pb) association. The Pb 2+ ion in soil solution was mostly bound to associates PbOH + , Pb(OH) 2 0 , PbCO 3 0 , Pb(CO 3 ) 2 2– , and PbHCO 3 + . The calculation of CCE and ion association in soil solution revealed 14.5–21.5 times HM passivation compared to HM water-soluble values. The calculated HM activity in the soil solution in the example of the Pb 2+ ion was less than 4% after phosphogypsum application in the target amelioration layer of 20–45 cm. The studied phosphogypsum doses were substantiated as environmentally safe. This was because the real soil solution CCE provided HM ion form association and consequent passivation. The dry steppe soil remediation after phosphogypsum application was justified as highly probable. The intrasoil milling chemical soil-biological engineering technology was developed for simultaneous soil amelioration and remediation on the basis of the biogeosystem technique (BGT*) transcendental methodology. The BGT*-based technology was tested in the long-term field experiments and is capable of ensuring the priority geophysical micro- and macroaggregate structure via intrasoil milling and mixing of soil illuvial and transitional horizons. This helps synthesize soil multilevel architecture, providing intrasoil-dispersed environm...

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Chemical Soil-Biological Engineering Theoretical Foundations, Technical Means, and Technology for Safe Intrasoil Waste Recycling and Long-Term Higher Soil Productivity

et al. 2020

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“…Environmental contamination is a serious issue that humanity is currently struggling with (Litvinov et al, 2017;Sushkova et al, 2017;Rajput et al, 2017bRajput et al, ,2018. Numbers of techniques are being used and some others are under trial for the remediation of contaminants of the environment (Song et al, 2019;Baig et al, 2021;Kumar et al, 2021;Kumari et al, 2021;Paterlini et al, 2021).…”

Section: Environmental Concerns and Future Perspectivementioning

confidence: 99%

A review on nanobioremediation approaches for restoration of contaminated soil

Rajput¹,

Minkina²,

Kumari³

et al. 2022

Eurasian Journal of Soil Science (Ejss)

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Nanotechnological approaches are emerging as one of the most contemporary restoration strategies that may be used to remove a variety of contaminants from the environment, including heavy metals, organic and inorganic pollutants. The application of nanoparticles (NPs) is entrenched with biological processes to boost up the removal of toxic compounds from contaminated soils. Many efforts have been taken to increase the effectiveness of phytoremediation such as the addition of chemical additives, application of rhizobacteria, and genetic engineering, etc. In this context, the integration of nanotechnology with bioremediation has introduced new dimensions to the reclamation methods. Thus, advanced remediation methods that combine nanotechnology with phytoremediation and bioremediation, where nanoscale process regulation aids in the absorption and breakdown of pollutants. NPs absorb/adsorb a variety of contaminants and also catalyze reactions by lowering the energy required for their breakdown due to unique surface properties. As a result, these nanobioremediation procedures decrease the accumulation of contaminants while simultaneously limiting their dispersal from one medium to another. Therefore, the present review is dealing with all the possibilities of the application of NPs for restoration of contaminated soils.

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“…The accumulation of trace elements in the soil should be monitored, depending on the purity of the phosphate ore. However in Russia, numerous studies did not reveal the accumulation of heavy metals (Cu, Zn, Pb, Ni, Cd, and Sr) and Fin soils and cereal grains in quantities higher than maximum allowable concentrations after PG application (Loktionov et al, 2015;Batukaev et al, 2017;Fedotova et al 2017). Similarly, the concentrations of various radionuclides in PG will range widely depending on the rock used in producing soluble phosphate.…”

Section: Phosphogypsum As a Nutrient Sourcementioning

confidence: 99%