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Journal articles on the topic 'Heavy metals salts'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Polozova, Elena V., V. V. Shilov, A. S. Bogacheva, and I. N. Klyushkin. "THE POSSIBILITY OF USING CYANOBACTERIA SYNECHOCYSTIS SP. FOR THE ASSESSMENT OF THE DEGREE OF WATER POLLUTION WITH HEAVY METAL SALTS." Hygiene and sanitation 96, no. 7 (2019): 656–60. http://dx.doi.org/10.18821/0016-9900-2017-96-7-656-660.

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For the first time there are provided data on the toxicity of salts of heavy metals to the cyanobacteria Synechocystis sp. CALU 713 and PCC 6803. Changes of light and temperature conditions were shown to modify cyanobacteria sensitivity to the toxic effect of salts of heavy metals. The toxicity of salts of heavy metals is determined by the dose-dependent effect of the reducing the growth rate of cyanobacteria in the incubation medium on water basis. Changes of light and temperature culture conditions modify the sensitivity of the cyanobacteria Synechocystis sp. to toxic effect of salts of heav

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2

Hryntsova, N. B., and A. M. Romanyuk. "Long-term Effect of Water Pollutants (Heavy Metals) on the Morphofunctional State of the Adult Rat's Pituitary Gland." Ukraïnsʹkij žurnal medicini, bìologìï ta sportu 6, no. 4 (2021): 172–78. http://dx.doi.org/10.26693/jmbs06.04.172.

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In some northern regions of Ukraine there is an increased accumulation of salts of heavy metals in soil and drinking water, which negatively affect the health of the population and become a risk factor for many diseases. The role of the pituitary gland in the regulation of functional disorders of hormonal homeostasis in various pathological conditions is extremely important. The purpose of the study is to study the morphological, morphometric and biochemical rearrangements of the structural components of the adenohypophysis of adult male rats under conditions of long-term exposure to salts of

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3

Shukla, Abhimati, Zainab Mahmood, and Lalit Kumar Singh. "Studies on recovery of heavy metals from tannery wastewater." International Journal of Engineering, Science and Technology 13, no. 1 (2021): 76–80. http://dx.doi.org/10.4314/ijest.v13i1.11s.

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Heavy metal salts are widely used in the tanning process in the form of Chrome alum and Chromium[III] sulfate. It is a highly toxic metal and cannot be degraded thus deposited and incorporated in water, sediment and aquatic ecosystems which poses various respiratory, skin and other health issues to humans and also cause serious issues to microbial, plant and aquatic life. The cost of these heavy metal salts is high due to which the tanners need a lot of investment for the tanning process because of its abundant use. So, to overcome such issues numerous techniques have been developed for the re

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4

Al-Shdidi, Ahmed M. S. "Study of Pollution Levels of heavy metals residues in the locally produced cheese & emulsifying salts." Iraqi Journal of Veterinary Medicine 34, no. 2 (2010): 188–93. http://dx.doi.org/10.30539/iraqijvm.v34i2.650.

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The study was conducted to indicate the compartive measurements of heavy metals residues levels were detected by Atomic Absorption Spectrophotometer in 10 random samples of locally processed cheeses and in 20 random samples of emulsifying salts collectd from different areas in Baghdad , results showed that such cheese of low quality and did not meet both local and international Dairy products standards , Such findings of high concentration of heavy metals residues indicate that the emulsifying salts used in processing were not nutritional but of industrial origin and unfit for human consumptio

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5

Zharykbasov, Ye, S. Toleubekova, M. Jumazhanova, G. Baibalinova, and A. Kabdenova. "ANALYSIS OF THE CONTENT OF HEAVY METAL SALTS IN MILK AND THEIR INTERACTION WITH ENZYMES." Bulletin of Shakarim University. Technical Sciences, no. 1(17) (March 29, 2025): 141–49. https://doi.org/10.53360/2788-7995-2025-1(17)-18.

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The article substantiates the relevance of the application aimed at studying the content of heavy metals in milk and their interaction with enzymes. It should be noted that research is currently underway to study the interaction of enzymes with heavy metals in environmental objects and in a living organism. It is known that certain heavy metals both inhibit the activity of individual enzymes and stimulate their activity. For example, studies have been conducted proving that cadmium stimulates peroxidase activity, but inhibits catalase activity regardless of the concentration of this element in

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6

Awan, Bilal Ahmed, Kashf Mehmood, Asif Ali, et al. "Increase Potential of Environmental Stresses and Climatic Risk of Heavy Metals in Plants and Control through Nanotechnology Advances." Haya: The Saudi Journal of Life Sciences 7, no. 2 (2022): 51–55. http://dx.doi.org/10.36348/sjls.2022.v07i02.005.

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Different heavy salts accumulated in the soil causing the soil salinity and damage the biological processing occurring in plants such as photosynthesis and light reactions. Climate changes also promote the accumulation of heavy metals by promoting the chemicals substances in the leaves and roots cells that causing the chlorosis. Coal combustion release the large amount of mercury metals that acting as toxic for the plants. There is need to design the biological and mechanical processing the removal of salts and toxic wastes from surfaces in such a way that no eruptions of plant materials occur

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7

Nouri, Mohamed, Taoufik El Rasafi, and Abdelmajid Haddioui. "Responses of Two Barley Subspecies to In vitro-Induced Heavy Metal Stress: Seeds Germination, Seedlings Growth and Cytotoxicity Assay." Agriculture (Pol'nohospodárstvo) 65, no. 3 (2019): 107–18. http://dx.doi.org/10.2478/agri-2019-0011.

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Abstract In this work three heavy metals: cadmium (as CdSO4), cobalt (as CoCl2) and zinc (as ZnSO4), were used to determine and compare their toxicity towards two subspecies of barley (Hordeum vulgare subsp. vulgare L. and Hordeum vulgare subsp. distichum L.), focusing on seeds germination, seedlings growth, and cytological parameters. The results indicate that the effect of these heavy metals depends on the metal kind, the metal concentrations and the plant subspecies. Generally, in the case of H. vulgare, the heavy metal salts understudy did not influence significantly seed germination and s

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8

Stepanova, V. P., A. V. Suslov, I. N. Suslova, E. A. Sukhanova, B. F. Yarovoy, and V. N. Verbenko. "Adaptation of natural yeast strains to heavy metal and radionuclides salts." Marine Biological Journal 5, no. 3 (2020): 64–73. http://dx.doi.org/10.21072/mbj.2020.05.3.06.

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Ability of natural yeast strains to grow in conditions of high concentrations of heavy metal and radionuclides salts was studied. More than 500 strains were tested for resistance to salts of heavy metals (U, Cs, Sr, Ni, Ar, Cu, Cd, and Co) and to elevated temperature (t) (+37…+52 °C). Most of the strains tested were resistant to one or more selective factors. Combinations of (t, Cd, Cu, Co) and (Cd, Cu, Co) occurred with the highest frequencies: 36 and 26 %, respectively. Ability of isolated strains to grow in the presence of high concentrations of radioactive isotopes Cs and Ni and to bind th

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9

Amegashie, F., J. Q. Shang, E. K. Yanful, W. Ding, and S. Al-Martini. "Using complex permittivity and artificial neural networks to identify and classify copper, zinc, and lead contamination in soil." Canadian Geotechnical Journal 43, no. 1 (2006): 100–109. http://dx.doi.org/10.1139/t05-085.

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Complex permittivity measurements combined with artificial neural networks (ANNs) are investigated as a method for assessing and identifying heavy metal contamination in soil. The measurements are carried out with a custom-built device on 164 compacted samples of a natural clayey soil, artificially contaminated with various simple salts including heavy metals (Cu, Zn, and Pb). The soil samples are prepared by mixing solutions of the various salts with the soil at various concentrations and water contents. A database has been set up consisting of complex per mittivity measurements made between

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10

Alekseeva, S. I., and Zh M. Okhlopkova. "Opportunities for Biotesting of the Water Environment for Heavy Metal Pollution Using a Plant Spirodela polyrhiza (L.) Schleid." Ecology and Industry of Russia 25, no. 5 (2021): 52–57. http://dx.doi.org/10.18412/1816-0395-2021-5-52-57.

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The methods of biotesting of the aquatic environment based on the representative of the duckweed family (lat. Lemnaceae) greater duckweed (Spirodela polyrhiza (L.) Schleid) were considered. A review is presented on the use of greater duckweed as a model object in biological testing, in partic-ular, when exposed to heavy metals salts. When cultivated Spirodela polyrhiza with the addition of heavy metals salts, a change in the growth and development of plants in the experienced line of plants was revealed, as well as a decrease in the content of chlorophyll a and b.

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11

Shevchenko, A. V., I. G. Budzanivska, T. P. Shevchenko, and V. P. Polischuk. "Stress caused by plant virus infection in presence of heavy metals." Plant Protection Science 38, SI 2 - 6th Conf EFPP 2002 (2017): 455–57. http://dx.doi.org/10.17221/10522-pps.

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Due to increased heavy metal content in Ukrainian soils, purpose of the work was to study relations between presence of heavy metals in soil and their effect on development of phytoviral infection. Experiments were conducted in Nicotiana tabacum – Potato virus X model system. Soluble salts of Cu, Zn and Pb were deposited in soil separately at the limiting concentrations simultaneously with virus infection of plants. Infected plants grown on usual soil showed symptoms of disease on 16 dpi as well as plants grown on soil with metals deposited. Contrary, combined effect of heavy metals and virus

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12

Stepanova, Svetlana, and Galina Simonova. "METHOD FOR CLEANING WATER FROM SALTS OF HEAVY METALS." Interexpo GEO-Siberia 8 (2019): 104–8. http://dx.doi.org/10.33764/2618-981x-2019-8-104-108.

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The method of water purification from lead ions using a natural water purifier – eichornia is considered. Quantitative estimates of changes in the concentration of impurities depending on the time of purification were carried out.

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Tazitdinova, R. M., R. R. Beisenova, A. S. Kurmanbayeva, and A. I. Grigoryev. "Accumulation of heavy metals in rats’ body under chronic combined intoxication with zinc, copper and arsenic salts." Bulletin of the Karaganda University “Biology medicine geography Series” 93, no. 1 (2019): 36–42. https://doi.org/10.31489/2019bmg1/36-42.

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The article indicates the results of a research made on the accumulation of heavy metals in some internal organs of rats under chronic combined poisoning with heavy metals salts (zinc, copper and arsenic). The experiments were carried out on 40 white outbred pubescent rats. They were divided into four groups. Heavy metals that can accumulate in the body of animals and humans, can lead to the internal organs dysfunction and organ systems disruption. Some heavy metals are able to selectively accumulate in a living organism. Therefore, the study was conducted of certain organs on the degree of ac

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14

Aljendeel, Haider A. "REMOVAL OF HEAVY METALS USING REVERSE OSMOSIS." Journal of Engineering 17, no. 03 (2011): 647–58. http://dx.doi.org/10.31026/j.eng.2011.03.23.

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The aim of this work is to study reverse osmosis characteristics for copper sulfate hexahydrate(CuSO4.6H2O), nickel sulfate hexahydrate (NiSO4.6H2O) and zinc sulfate hexahydrate (ZnSO4.6H2O)removal from aqueous solution which discharge from some Iraqi factories such as Alnasser Company formechanical industries. The mode of operation of reverse osmosis was permeate is removed and theconcentrate of metals solution is recycled back to the feed vessel. Spiral-wound membrane is thin filmcomposite membrane (TFC) was used to conduct this study on reverse osmosis. The variables studied aremetals conce

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15

Ficek, Wanda. "Heavy Metals and the Mammalian Thymus: In Vivo and In Vitro Investigations." Toxicology and Industrial Health 10, no. 3 (1994): 191–201. http://dx.doi.org/10.1177/074823379401000308.

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This experiment was performed to investigate changes in the thymus of Wistar-strain male rats administered cadmium chloride (CdCl2), mercuric chloride (HgCl2), and lead chloride (PbCl2) salts. The study involved measurement of: 1) deoxyribonucleic acid (DNA) content; 2) ascorbic acid (vitamin C) content; 3) incorporation of 3h-thymidine during in-vitro investigation; and 4) histological and morphological changes. It was shown in investigations on DNA content that administration of heavy metal salts caused an average 76% decrease in DNA content compared to the control. Moreover, in the thymus o

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16

Yelikbayev, B. K., Marcela C. Pagano, and G. A. Jamalova. "HYPERACCUMULATOR PLANTS FOR PHYTOREMEDIATION OF SOIL CONTAMINATED WITH HEAVY METALS." BULLETIN 5, no. 387 (2020): 34–40. http://dx.doi.org/10.32014/2020.2518-1467.140.

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Environmental pollution, including pollution of urban soils by heavy metals causes serious environmental concern around the world. Heavy metals accumulate relatively quickly in soil but their removal rate is very slow. Hyperaccumulator plants help cleanse the environment from heavy metals. Phytoremediation is cleansing of soils contaminated with heavy metals, using plants that accumulate significant amounts of metals. An important environmental problem in large industrial cities is pollution by toxic compounds, including heavy metals. Due to the potential toxicity and high resistance of metals

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17

Zhytniakivska, Olga, Uliana Tarabara, Kateryna Vus, Valeriya Trusova, and Galyna Gorbenko. "Molecular Docking Study Of Protein-Functionalized Carbon Nanomaterials For Heavy Metal Detection And Removal." East European Journal of Physics, no. 3 (September 2, 2024): 484–90. http://dx.doi.org/10.26565/2312-4334-2024-3-59.

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Carbon nanomaterials (CNMs) have emerged as highly effective agents for the removal of heavy metals from contaminated water and environments, owing to their unique structural and chemical properties. However, the hydrophobic nature of CNMs and their tendency to aggregate in most solvents present significant challenges to their practical application. Functionalizing carbon-based nanomaterials with proteins offers a promising solution to these issues, potentially leading to systems with unprecedented performance. Before fabricating protein-CNM systems for heavy metal detection and removal, it is

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18

Mukhi, Senna, Biranthabail Dhanashree, Rukmini Mysore Srikantiah, Poornima Manjrekar, and Sindhu Harish. "Evaluation of Minimum Inhibitory Concentration of Heavy Metals Contained in Packaging Material Digest on Prominent Gut Microbiota." International Journal of Food Science 2023 (November 21, 2023): 1–8. http://dx.doi.org/10.1155/2023/3840795.

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Several scientific investigations have revealed that the leaching of metals from packaging material into the packed food is an unavoidable process. Hence, this study is aimed at investigating the effect of leached heavy metals from food packing materials on normal human gut flora. We analysed the effect of vanadium, arsenic, cadmium, and mercury present in digested packaging materials (DPM) on standard strains of Escherichia coli ATCC 25923, Pseudomonas aeruginosa ATCC 27853, Klebsiella pneumoniae ATCC 70063, and Enterococcus faecalis ATCC 29212. The minimum inhibitory concentration (MIC) of l

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19

Massover, William H. "On the Experimental Use of Light Metal Salts for Negative Staining." Microscopy and Microanalysis 14, no. 2 (2008): 126–37. http://dx.doi.org/10.1017/s1431927608080033.

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All common negative stains are salts of heavy metals. To remedy several technical defects inherent in the use of heavy metal compounds, this study investigates whether salts of the light metals sodium, magnesium, and aluminum can function as negative stains. Screening criteria require aqueous solubility at pH 7.0, formation of a smooth amorphous layer upon drying, and transmission electron microscope imaging of the 87-Å (8.7-nm) lattice periodicity in thin catalase crystals. Six of 23 salts evaluated pass all three screens; detection of the protein shell in ferritin macromolecules indicates th

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20

Lee, Yun-Yeong, Soo Yeon Lee, and Kyung-Suk Cho. "Comparative Assessment of Single Extraction Methods for Evaluating Copper and Lead Bioavailability in Co-contaminated Soils with Diesel and Heavy Metals." Journal of Korean Society of Environmental Engineers 47, no. 3 (2025): 177–94. https://doi.org/10.4491/ksee.2025.47.3.177.

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Soil contamination by heavy metals and petroleum hydrocarbons (PHs) poses significant environmental and health risks. This study evaluated the extractability and bioavailability of copper (Cu) and lead (Pb) in soils co-contaminated with heavy metals and diesel using two chelating agents (EDTA and DTPA) and two neutral salts (NaNO<sub>3</sub> and CaCl<sub>2</sub>). Maize and tall fescue were cultivated for 60 days to assess heavy metal uptake. The results showed that chelating agents extracted significantly greater amounts of Cu, likely due to their strong complexation w

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21

Nilawati, A. Mukimin, and S. Djayanti. "The Effect of Geomembrane Plastic Usage on Microplastic and Heavy Metal Contamination in Salt Field." IOP Conference Series: Earth and Environmental Science 1201, no. 1 (2023): 012054. http://dx.doi.org/10.1088/1755-1315/1201/1/012054.

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Abstract Seawater is used to produce salt. For 10–15 years, geomembrane plastic has been used in salt fields in Indonesia to prevent contamination and increase quality and productivity. However, it is unfortunate that currently, seawater has been polluted by plastic waste, which has degraded gradually into small pieces about <5 mm in size called microplastics. In addition to microplastics, seawater is also polluted by heavy metals. Previous research indicated that the north coast of Central Java has been polluted by heavy metals whose content exceeded the threshold. The aim of this study wa

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Koplík, Jan, Miroslava Smolková, and Jakub Tkacz. "The Leachability of Heavy Metals from Alkali-Activated Fly Ash and Blast Furnace Slag Matrices." Materials Science Forum 851 (April 2016): 141–46. http://dx.doi.org/10.4028/www.scientific.net/msf.851.141.

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The ability of alkali-activated materials (AAMs) to fix and immobilize heavy metals was investigated. Two raw materials were used to prepare alkali-activated matrices – high-temperature fly ash and blast furnace slag (BFS). NaOH served as an alkaline activator. Two heavy metals (Mn, Ni) were added in different amounts to find out the influence of dosage of heavy metal on the mechanical properties of the matrices and the leachability. Leachability was measured as concentration of heavy metals in leachates (ČSN EN 12457-4) by inductively coupled plasma/optical emission spectrometry (ICP/OES). St

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Opriș, Ocsana, Ildiko Lung, Katalin Gméling, et al. "Responses of the Allium cepa L. to Heavy Metals from Contaminated Soil." Plants 13, no. 20 (2024): 2913. http://dx.doi.org/10.3390/plants13202913.

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Heavy metals can accumulate and migrate in soil environments and can negatively affect crops and consumers. Because an increased incidence of chronic diseases can be observed, food security has become a high-priority concern. In the present work, we evaluate the impact of heavy metals on bioactive compounds and elemental content from onions. Plants were grown in the absence and presence of various concentrations of heavy metal salts (Pb, Mn, Cu, Zn, Ni and Cd). The influence of heavy metal salts on onions was evaluated by analyzing the content of bioactive compounds, antioxidant capacity, and

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Ham, Youn-Kyung, Dong-Heon Song, and Hyun-Wook Kim. "Effects of Toxic Heavy Metal Salts on Oxidative Quality Deterioration in Ground Pork Model during Aerobic Display Storage." Antioxidants 11, no. 7 (2022): 1310. http://dx.doi.org/10.3390/antiox11071310.

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The contamination of toxic heavy metals in meat production and processing can cause the oxidative deterioration of processed meat products. Aside from the possible mechanisms of toxic heavy metals on pro-oxidative reaction, little is known about the potential impacts of toxic heavy metal contamination on meat quality attributes within permitted maximum residual levels. Therefore, the objective of this study was to determine the influence of the intentional contamination of toxic heavy metals on the oxidative deterioration in ground pork models during aerobic display storage. Four types of toxi

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Krasnikov, A. V., V. S. Selikhova, and E. S. Krasnikova. "Accumulation of heavy metals by wild and cultivated mushrooms (review)." Innovations and Food Safety, no. 1 (April 15, 2021): 61–66. http://dx.doi.org/10.31677/2072-6724-2021-31-1-61-66.

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The article is devoted to the problem of consequences of anthropogenic environment pollution with heavy metals and their salts. The review presents data on food products that most actively accumulate them. It is shown that edible wild-growing and cultivated mushrooms are classified as such. At the same time, there are no normative documents regulating the maximum permissible values of heavy metals content for wild mushrooms. Herewith, among the wild-growing mushrooms, there are species that are most prone to the heavy metals accumulation. According to the authors, the issue of studying the acc

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Savchenko, O. I., T. N. Kravchuk, D. V. Tapalsky, and V. A. Filipova. "ANTIBACTERIAL EFFECT OF CATIONS ON HEAVY METALS." Health and Ecology Issues, no. 2 (June 28, 2014): 104–9. http://dx.doi.org/10.51523/2708-6011.2014-11-2-22.

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Objective: to study bactericidal properties of metal cations against Staphylococcus aureus and Pseudomonas aeruginosa . Material and methods. Minimum inhibitory and minimum bactericidal concentrations of metal salts were determined by the method of broth dilution. The kinetics of growth and dying of S.aureus and P.aeruginosa was studied in broth culture medium in the presence of metal cations in concentrations four times exceeding the minimum bactericidal concentrations. Results. The cations of silver and copper proved to possess a marked bactericidal effect. It was showed that an increase of

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Scorbach, Valentina, Yulia Kurkina, and Danil Maklakov. "Effect of increasing doses of Pb and Cd salts for growth and development of sprouts of seed peas (Pisum sativum) and soft wheat (Triticum aestivum)." BIO Web of Conferences 40 (2021): 01010. http://dx.doi.org/10.1051/bioconf/20214001010.

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The aim of the study was to study the effect of increasing doses of Cd and Pb salts on the morphometric parameters of pea and wheat seedlings. The problem of protecting the biosphere from chemical pollution, which is caused by the development of industry, transport, agricultural chemization, and intensive urbanization, is becoming increasingly important at the present time. This problem has become particularly acute due to the pollution of the environment with heavy metals. The most dangerous environmental pollutants among heavy metals are cadmium and lead. As a result, the negative impact of

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Guo, Jing Jing, and Ming De Fan. "Progress of Removing Heavy Metals by Zero Valent Iron Nanoparticles from Wastewater." Advanced Materials Research 726-731 (August 2013): 2563–66. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.2563.

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Heavy metal pollution is a serious threat to human health. Because of the development of nanotechnology, removal of heavy metal is more convenient and effective. nanozero valent iron (Fe0) particles have high activity and specific surface area. At present, Fe0 nanoparticles have been used in the processing of refractory organics, heavy metals, inorganic salts, soil restoration, and other areas of the environment. But the dispersion and stability of the Fe0 nanoparticles are poor. We can improve physical and chemical properties of Fe0 by adding carrier materials to make iron nanoparticles have

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Petrushka, Kateryna, and Ihor Petrushka. "INFLUENCE OF HEAVY METALS OXIDES ON THE POLLUTION OF THE SOIL ENVIRONMENT AS A CONSEQUENCE OF MILITARY ACTIONS." Environmental Problems 8, no. 2 (2023): 87–93. http://dx.doi.org/10.23939/ep2023.02.087.

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Heavy metals enter the soil in the form of oxides and salts (both soluble and practically insoluble in water). There is an assumption that heavy metal oxides are fixed mainly in the solid phase of the soil, especially in a neutral or alkaline pH environment. It should be noted that their toxic effect depends entirely on such factors as the type of soil and the pH of the pore solution. The behavior of heavy metals in soils is significantly different from the behavior of most cations of macroelements. The purpose of this work is to assess the anthropogenic impact of heavy metal oxides, as well a

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Tojikulova, Oysora, Muzaffar Asrarov, Baxritdin Bazarov, Nigora Rakhmatova, Shokir Turamkulov, and Shoxsanam Baratova. "The effect of Cd2+ ions on the passive permeability of the mitochondrial membrane of liver cell of Rats." BIO Web of Conferences 173 (2025): 02016. https://doi.org/10.1051/bioconf/202517302016.

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This article describes the results of a study conducted on rats on the effects of heavy metal salts, including Cd2+ ions, on mitochondrial membranes. The experiments showed that heavy metals are one of the most dangerous sources of environmental pollution, and that they have a strong genotoxic, tumor-causing and cytotoxic effect when ingested. Cd2+ poisoning occurs in the metallurgical industry through inhalation of atmospheric air, consumption of contaminated food and water, and cigarette smoke. The studies showed that the studied heavy metal salts, Cd2+ ions, negatively affect the structure

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Rożek, Piotr, Paulina Florek, Magdalena Król, and Włodzimierz Mozgawa. "Immobilization of Heavy Metals in Boroaluminosilicate Geopolymers." Materials 14, no. 1 (2021): 214. http://dx.doi.org/10.3390/ma14010214.

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Boroaluminosilicate geopolymers were used for the immobilization of heavy metals. Then, their mechanical properties, phase composition, structure, and microstructure were investigated. The addition of borax and boric acid did not induce the formation of any crystalline phases. Boron was incorporated into the geopolymeric network and caused the formation of N–B–A–S–H (hydrated sodium boroaluminosilicate) gel. In the range of a B/Al molar ratio of 0.015–0.075, the compressive strength slightly increased (from 16.1 to 18.7 MPa), while at a ratio of 0.150, the compressive strength decreased (to 12

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Baranov, A. N., and Т. В. Lebedeva. "Medico-ecological aspects of physical and sexual development of the adolescent girls." Journal of obstetrics and women's diseases 54, no. 1 (2005): 52–56. http://dx.doi.org/10.17816/jowd81467.

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It has been established that ecologic factors could badly influence on the development of the reproductive system. Among anthropogenic ecologic factors, metal pollutants are of special interest. In our survey, we have revealed that adolescent girls, living in the territories polluted by the salts of heavy metals, tend to have intersexual type of body build, which has manifested in enlarged shoulder width, enlarged length of the arms and decreased transverse pelvic distances. The development of the secondary sexual signs was accompanied by the retardation in development of mammas, arm-pit

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McLaughlin, Molly C., Bonnie McDevitt, Hannah Miller, et al. "Constructed wetlands for polishing oil and gas produced water releases." Environmental Science: Processes & Impacts 23, no. 12 (2021): 1961–76. http://dx.doi.org/10.1039/d1em00311a.

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Produced water (PW) is the largest waste stream associated with oil and gas (O&G) operations and contains petroleum hydrocarbons, heavy metals, salts, naturally occurring radioactive materials and any remaining chemical additives.

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Рябчиков, Б. Е., А. А. Пантелеев, А. С. Касаточкин, С. Ю. Ларионов, and М. М. Шилов. "Problems of removing heavy metals salts from wastewater: options and solutions." Vodosnabzhenie i sanitarnaia tehnika, no. 7 (July 15, 2024): 33–40. http://dx.doi.org/10.35776/vst.2024.07.04.

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На предприятиях многих отраслей промышленности образуется большой объем сточных вод, содержащих соли различных тяжелых металлов и их соединений. Разработано множество вариантов технологий, позволяющих извлекать тяжелые металлы из сточных вод: ионный обмен и мембранные технологии, а также реагентные методы. Однако в результате очистки с помощью первых двух методов образуются новые высококонцентрированные растворы токсичных компонентов, которые требуют последующего захоронения или отверждения. Реагентные методы позволяют получать отходы в виде шлама, который также необходимо обрабатывать и подве

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Baibekov, R. F., S. L. Belopukhov, V. I. Savich, and A. S. Razin. "New methods of cleaning soil from heavy metals." IOP Conference Series: Earth and Environmental Science 843, no. 1 (2021): 012048. http://dx.doi.org/10.1088/1755-1315/843/1/012048.

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Abstract The purpose of the work was to study new methods of cleaning soil from heavy metals. In this work, it was proposed to extract heavy metals Cd, Zn, Fe, Cu, Mn, Pb from soils using the method of biological purification. For this, we recommended to carry out preliminary treatment of soils with complexones and to carry out additional introduction of biophilic elements into complex compounds. The possibility of using electromechanical treatment for removing heavy metals from soils after a preliminary increase in the mobility of ions by acidification and the use of complexation reactions is

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Shamyan, Varuzhan, Armenuhi Minasyan, and Marine Kalantaryan. "Calculation Features of Vertical Settling Tanks for Heavy Metal - Containing Wastewater Treatment." Journal of Architectural and Engineering Research 7 (December 25, 2024): 31–39. https://doi.org/10.54338/27382656-2024.7-03.

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The article discusses the treatment of wastewater containing heavy metal salts before releasing it into natural water bodies or the urban drainage system. The focus is on environmental protection, human health, and the potential for recovering valuable metals from wastewater. A vertical settling tank was selected for its cost-effectiveness in treating metal-containing acidic wastewater. The article provides a general method for calculating these settling tanks during reagent sedimentation, which can be used to remove various types of heavy metal salts. For this purpose, all calculations relate

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Amjad, Zahid. "Controlling Copper-Based Fouling in Industrial Water Systems." Materials Performance 52, no. 3 (2013): 50–55. https://doi.org/10.5006/mp2013_52_3-50.

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It is important to remove heavy metals from industrial waste water because of contamination and toxicity issues. Cu2+ salts have long been used to kill algae in water systems, but they can precipitate as insoluble salts and form deposits. This article discusses the testing and effects of two types of polymers used to control copper-based fouling in industrial water systems.

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Licskó, I., and I. Takács. "Heavy Metal Removal in the Presence of Colloid-Stabilizing Organic Material and Complexing Agents." Water Science and Technology 18, no. 1 (1986): 19–29. http://dx.doi.org/10.2166/wst.1986.0003.

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It has been established in laboratory model experiments that the removal of dissolved heavyimetals from wastewaters is rendered more difficult in the presence of colloid-stabilizing agents. This unfavourable effect can be eliminated by the addition of Mg2+ ions and the adjustment to a fairly high pH. By increasing the concentration of Mg2+ ions, the pH necessary for destroying the stability of colloidal dispersion can be lowered. These findings also apply to the combined removal of different heavy metals (Cu, Zn, Cr(III), Ni, Cd). In alkaline conditions, in the presence of ammonium salts, some

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Korobov, V. V., N. V. Zharikova, and E. I. Zhurenko. "BACTERIAL REMOVAL OF HEAVY METALS IONS FROM AQUEOUS SOLUTIONS OF SALTS." ÈKOBIOTEH 7, no. 4 (2024): 260–64. https://doi.org/10.31163/2618-964x-2024-7-4-260-264.

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Bacteria isolated from industrial ecotopes of Ufa were studied for the uptake of metal ions from aqueous solutions of salts simulating the composition of wastewater. The study found that Pb(II) and Cr(VI) ions were the most accessible to the studied strains ‒ they were removed from solutions by three strains each: Bacillus megaterium 32T, Raoultella planticola 36D, Raoultella planticola 33-4CPA and Pseudomonas sp. 34DCP, B. megaterium 32T, R. planticola 36D, respectively. The ability to remove Fe(III) ions was revealed in two cultures ‒ Bacillus subtilis 19S and B. megaterium 32T, Cd(II) and C

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Kharel, Hari Lal, Ina Shrestha, Melissa Tan, Mohammad Nikookar, Negar Saraei, and Thinesh Selvaratnam. "Cyanidiales-Based Bioremediation of Heavy Metals." BioTech 12, no. 2 (2023): 29. http://dx.doi.org/10.3390/biotech12020029.

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With growing urbanization and ongoing development activities, the consumption of heavy metals has been increasing globally. Although heavy metals are vital for the survival of living beings, they can become hazardous when they surpass the permissible limit. The effect of heavy metals varies from normal to acute depending on the individual, so it is necessary to treat the heavy metals before releasing them into the environment. Various conventional treatment technologies have been used based on physical, chemical, and biological methods. However, due to technical and economic constraints and po

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Bäckström, Mattias, Stefan Karlsson, Lars Bäckman, Lennart Folkeson, and Bo Lind. "Mobilisation of heavy metals by deicing salts in a roadside environment." Water Research 38, no. 3 (2004): 720–32. http://dx.doi.org/10.1016/j.watres.2003.11.006.

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Dzagurov, Boris, Oleg Getokov, Vladimir Gukezhev, Taladin Kokov, and Vitaly Vorokov. "Biotechnological aspects of transformation of heavy metal salts and their detoxication in milk of milk cows." E3S Web of Conferences 262 (2021): 02010. http://dx.doi.org/10.1051/e3sconf/202126202010.

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Based on the results of previous studies on pigs and poultry, in which encouraging results of a significant decrease in the concentration of heavy metals in the body were obtained, respectively, in pork, poultry and eggs, the study provided for the use of the bentonite clay of the Zamankul deposit (RNO-Alania) as an enterosorbent in relation to heavy metals and detoxification of the organism of dairy cows. In order to study the feasibility of using bentonite as an enterosorbent, studies were performed on dairy cows of the Simmental breed in the Kaloyev farm located in st. Zmeyskaya, Kirovsky d

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Digarbaeva, A. M., A. N. Kaliyeva, E. A. Kirshibayev, and M. R. Bahtybaeva. "INFLUENCE OF HEAVY METALS ON THE DEVELOPMENT OF CORN VARIETIEShttps://doi.org/10.32014/2021.2518-1483.28." REPORTS 2, no. 336 (2021): 39–45. http://dx.doi.org/10.32014/2021.2518-1483.28.

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Heavy metals are some of the most harmful chemicals in the environment today. Today, many scientists believe that the main factor that negatively affects the plant in saline conditions is the osmotic effect of salts. In conditions of soil salinity, the lack of plants causes dehydration of proteins, which negatively affects the physiological and biochemical processes of plants. Plants absorb heavy metals in different ways. It absorbs heavy metals from the soil through the roots and from the air through the stomata of the leaves, mainly through dust. The aim of the research is to study the influ

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Ahmaruzzaman, Md. "Sawdust as Low-Cost Adsorbents for the Removal of Heavy Metals From Water." Asian Journal of Water, Environment and Pollution 19, no. 3 (2022): 45–50. http://dx.doi.org/10.3233/ajw220038.

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Sawdust is currently investigated as a sorbent to eliminate heavy metals from wastewater and other aqueous solutions. The raw material is relatively cheap and is available in abundance. Sawdust also helps to eradicate other contaminants, such as dyes, pesticides, phenols, toxic salts, etc. This literature discusses the elimination of heavy metals from wastewater through the help of sawdust. The composition of the sawdust, and the work done concerning the sorption of heavy metals, kinetics, adsorption isotherm, etc., are discussed in this study. The adsorption capacity of sawdust depends on the

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Urase, T., M. Salequzzaman, S. Kobayashi, T. Matsuo, K. Yamamoto, and N. Suzuki. "Effect of high concentration of organic and inorganic matters in landfill leachate on the treatment of heavy metals in very low concentration level." Water Science and Technology 36, no. 12 (1997): 349–56. http://dx.doi.org/10.2166/wst.1997.0464.

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Various heavy metals in the landfill leachates were measured up to very low concentration levels of micrograms per litre. Though no violation to Japanese effluent standards was found in respect of individual metal, leachate or treated leachate it still contains higher concentrations of total heavy metals than surrounding water environment. The effluent concentration after treatment was of the same order as raw leachate. Maximum metal solubilities in leachate were calculated taking the presence of inorganic metal complexes into account. Solubilities of metals were high enough and they were not

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Romaniuk, A., O. Tymakova, J. Lyndina, N. Gryntsova, I. Kravtsova, and V. Kust. "The morphological changes in parathyroid glands, caused simulated prolonged influence of heavy metal salts." Reports of Vinnytsia National Medical University 23, no. 1 (2019): 80–83. http://dx.doi.org/10.31393/reports-vnmedical-2019-23(1)-12.

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The main problem today is environmental pollution with heavy metal salts. Biological activity and their ability to accumulate in the environment and the body leads to the disruption of many systems and organs. Parathyroid glands are important regulators of calcium homeostasis, which affects a lot of physiological processes in the body. Therefore, the work is devoted to the study of the morphological and functional characteristics of the parathyroid glands of laboratory rats under conditions of prolonged use of a combination of heavy metal salts. Study of the peculiarities of the structure and

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Aytlesov, К., К. Aubakirova, and Z. Alikulov. "The effect of copper ions on the growth and content of proline in wheat plants (Triticum aestivum L.)." BIOLOGICAL SCIENCES OF KAZAKHSTAN 2 (June 2021): 8–17. http://dx.doi.org/10.52301/1684-940x-2021-2-8-17.

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The article presents the results of the study of the influence of copper heavy metals on the germination and growth of wheat seeds (Triticum aestirum L.) of the variety Akmola 2. The study was conducted under laboratory conditions. As a source of copper, concentrations of the CuSO4 salt of 50 μmol, 100 μmol, 150 μmol, and 300 μmol were taken. The seeds were pre-primed in a solution of molybdate (75 mM Na2MoO4*2H2O) for uniform germination. The results of the influence of primed and non-primed seeds on some physiological indicators of growth and development in these concentrations of copper are

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BOLORMAA, O., M. TSUJI, K. KAWASAKI, and T. HATTORI. "DETERMINATION OF HEAVY METALS IN SALTS BY PROTON INDUCED X-RAY EMISSIONS." International Journal of PIXE 14, no. 03n04 (2004): 115–24. http://dx.doi.org/10.1142/s0129083504000173.

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The samples of common salts available in Japan and Mongolia were analyzed for the presence of heavy elements by PIXE spectrometry using 2.5 MeV proton beam at the Tokyo Institute of Technology Van de Graaff Laboratory. The samples were dissolved in water and insoluble and soluble fractions were determined separately. The soluble constituents were treated with pre-concentration method by using DBDTC to form the complexes appropriate to percolation through a Nuclepore Track - etch Membrane. Insoluble particles were precipitated on the filter surface for subsequent direct irradiation. Combined As

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Nurgaliуev, B. E., A. K. Zhumabaуev, Zh S. Kushmukhanov, B. T. Kadralieva, Zh T. Ussenov, and A. К. Inirbayev. "STUDIES OF FISH AND FISH PRODUCTS FOR THE PRESENCE OF HEAVY METAL SALT AND RADIONUCLIDES IN WATER BODIES OF THE WEST KAZAKHSTAN REGION." HERALD OF SCIENCE OF S SEIFULLIN KAZAKH AGRO TECHNICAL RESEARCH UNIVERSITY : Veterinary sciences, no. 1(001) (March 27, 2023): 27–34. http://dx.doi.org/10.51452/kazatuvc.2023.1(001).1348.

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With the increase in production and processing industries, as well as the extraction of minerals in the territory of the Republic of Kazakhstan, it leads to pollution of the environment, ecology, wildlife and water resources of our country. All production capacities in agriculture and animal husbandry require water resources. As part of the research work, diagnostics were carried out on the content of salts of heavy metals and radioactive substances in the water bodies of the West Kazakhstan region, where they originate with transboundary rivers and an oil and gas field (KPO) is being produced

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Rao*, Juluri. "Electroremediation Methods for Removal of Excessive Salts from “Spent” Mushroom Compost." HortScience 39, no. 4 (2004): 751A—751. http://dx.doi.org/10.21273/hortsci.39.4.751a.

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There is world-wide interest in disposal technologies suitable for handling farm wastes. The Northern Ireland mushroom industry generates 200,000 tonnes/year of “spent” mushroom compost waste containing excess salts (P, K, Ca) and heavy metals. Its disposal by landspreading is restricted by EU, U.K. legislation. Farmers in Europe and the United States use this waste as a soil nutrient improver, but such operations are deleterious to the environment owing to microbial loading of soil and the release of human and animal pathogens. An ideal option is to reduce salt levels and pathogen content bef

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