A5000445867- Heavy metals in environment
- Clay minerals and soil interactions
- Chromium effects and bioremediation
- Adsorption and biosorption for pollutant removal
- Radioactive element chemistry and processing
- Microbial bioremediation and biosurfactants
- Geochemistry and Elemental Analysis
- Soil and Environmental Studies
- Marine and environmental studies
- Aquatic and Environmental Studies
- Lichen and fungal ecology
- Mining and Gasification Technologies
- Wastewater Treatment and Reuse
- Soil and Unsaturated Flow
- Microbial Fuel Cells and Bioremediation
- Coal and Its By-products
- Heavy Metal Exposure and Toxicity
- Soil Carbon and Nitrogen Dynamics
- Arsenic contamination and mitigation
- Selenium in Biological Systems
- Electrokinetic Soil Remediation Techniques
- Radioactivity and Radon Measurements
- Toxic Organic Pollutants Impact
- Adsorption, diffusion, and thermodynamic properties of materials
- Iron oxide chemistry and applications
Tula State Pedagogical University named after L.N. Tolstoy
2016-2024
Tula State University
2006-2016
In soil environments, sorption/desorption reactions as well chemical complexation with inorganic and organic ligands redox reactions, both biotic abiotic, are of great importance in controlling their bioavailability, leaching toxicity.These affected by many factors such pH, nature the sorbents, presence concentration ligands, including humic fulvic acid, root exudates, microbial metabolites nutrients.In this review, we highlight impact physical, chemical, biological interfacial interactions...
The rapid industrial development of civilization has led to the need for new materials clean up chemically contaminated wastewater and soils. Organoclays, based on smectite minerals various types surfactants, are one most effective sorbents adsorbing organic inorganic pollutants. Organoclays clay that have been modified by intercalation or grafting molecules. main mechanism interaction between substances organoclays involves adsorption onto surface mineral, which an expanded structural cell....
An important goal in environmental research for industrial activity and sites is the investigation development of effective adsorbents chemical pollutants that are widespread, inexpensive, unharmful to environment, have required adsorption selectivity. Organoclays materials can be obtained by modifying clays clay minerals with various organic compounds through intercalation surface grafting. practical applications as a wide range some inorganic contaminants. The traditional raw synthesis...
The presence of heavy metals in the soil could impose serious problems on soil-plant systems due to accumulation plants. Even vital elements such as Cu and Zn have a toxic effect case excessive intake by living organisms. present work aimed investigate content loosely bound (exchangeable, complexed, specifically sorbed) compounds their availability spring barley (Hordeum sativum distichum) contaminated Haplic Chernozem under conditions model experiment (five approximate permissible...
For many decades, natural and modified clay minerals have been used as adsorbents to clean up aquatic soil ecosystems contaminated with organic inorganic pollutants. In this study, organoclays based on bentonite various amphoteric nonionic surfactants were synthesized tested effective sorbents for lead ions. The maximum values of R obtained when describing the sorption processes using Langmuir model, which ranged from 0.97 0.99. adsorption ions by these was investigated different models...
Worldwide wastewater treatment plants generate enormous amounts of sewage sludge, and their further disposal depends on the technologies applied spontaneously occurring microbiological processes. From different ages urban 12 strains bacteria with simultaneous tolerance to two or more trace elements: Co, Ni, Cu, Zn, Cd Pb at concentration 3-5 mmol were isolated identified by PCR target genes Sanger sequencing methods. The isloated metal(loids) tolerant belong species, i.e., Serratia...
As objects for reforestation, the least studied are carbonate substrates, which have a number of specific features in terms mineral composition, exchange nutrients, and biological activity. The use preparations consortium bacteria genus Bacillus mycorrhizal fungi Glomus growing seedlings Scots pine (Pinus sylvestris L.) on substrates provides metabolic products; soluble microelement salts function as catalysts chemical reactions exudates soil greater amount plant heavy metals (HM) Cu, Zn,...
The use of nature-like technologies, leading to acceleration the processes natural destruction pollutants, is one promising directions for oil and petroleum product degradation in environment. joint oil-degrading bacteria polymers with properties surfactants humic acids (HAs) bioorganic compositions effective. In this study, from reed peat, which have a critical micelle concentration (CMC) 0.6 g/L, were used as an organic component. Oil-degrading genera Rhodococcus Pseudomonas, increased...
The study examines the antibiotic resistance of metal-tolerant bacteria isolated from wastewater treatment plant a large city to six antibiotics belonging β-lactam antibiotics, aminoglycosides and amphenicols. Resistance sewage sludge multitolerant heavy metals 18 tetracyclines, aminoglycosides, diaminopyrimidines, amphenicols ansamycins was studied also. Out 10, microorganisms facilities only Klebsiella pneumonia strain (tolerant 3 mM Cu) secondary settling tank did not show at...
1Catedra de Quimica General e Inorganica, Department of Natural Resources and Environment, School Agriculture, University Buenos Aires, Avenida San Martin 4453, C1417DSE Argentina 2University Brasilia, Caixa Postal 04.401, 70910-970 Braśilia, DF, Brazil 3Department Plant, Soil Environmental Sciences, Florence, Piazzale delle Cascine 28, 50144 Italy 4Centro Estudios Ambientales del Mediterraneo (CEAM), C/Charles R. Darwin 14, Parque Tecnologico, 46980 Paterna, Spain 5Department Biology, Tula...
Abstract The sorption of Cu and Pb added alone or in mixture the absence presence low-molecular mass aliphatic acids (LMMAAs): oxalic, citric glutamic acid onto a synthetic goethite at different pH values (from 3.0 to 5.5) was studied. Copper showed higher affinity for than lead both LMMAAs. By increasing initial organic ligand/metal molar ratio from 0 10, adsorption metals on iron oxide initially increased then decreased remained constant. In oxalic surfaces by up 2–4 decreased. Citric...
In real soils the interaction of humic substances with clay minerals often occurs participation metal cations. The adsorption fulvic acids (FA) solution and their solutions in presence heavy ions (Pb or Zn) on two (kaolinite bentonite) was investigated by measurement optical density changes equilibrium solutions. FA bentonite at concentrations 0.05–1 g/L proceeds according to polymolecular mechanism has a stepwise character. kaolinite can be described monomolecular adsorption....
The present research is focused on various pine ecotypes’ seed reproduction in the chalky substrate, challenging environmental conditions carbonate soils chalk outcrops south of Central Russian Upland relation to woods re-afforestation. winter and spring sowing methods were studied, along with a pre-seeding treatment, by biopreparations based consortium Glomales fungi, bacteria genus Bacillus, bioactive substances. seeds two ecotypes, Pinus sylvestris L.; var. cretacea Kalenicz exKom,...
Biological treatment methods are the most important part of process for domestic wastewater, amounts which increasing every year due to rapid, unregulated urbanization and rising number people living in such areas. At same time, microorganisms existing facilities should not only effectively utilize organic pollutants, but also be resistant a variety inorganic contaminants. This study’s objective is isolate identify—using molecular genetic techniques—strains bacteria that tolerate...
Polycyclic aromatic hydrocarbons (PAHs) are a major scientific challenge due to their profound impact on public and environmental health. Therefore, studying ways detoxify PAHs is important. In this research, the adsorption ability of bentonite modified with five surfactants, including amphoteric (cocoamphodiacetate disodium sodium cocoiminodipropionate) nonionic (lauramine oxide, cocamide diethanolamine, alkylpolyglucoside) substances for high-molecular benzo(a)pyrene low-molecular...