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Journal articles on the topic 'Chromium Environmental aspects'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 January 2023

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1

Puccini, Monica, and Domenico Castiello. "Use of Glucose to Improve the Environmental Aspects of Chrome Tanning Process." Advanced Materials Research 933 (May 2014): 144–50. http://dx.doi.org/10.4028/www.scientific.net/amr.933.144.

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A tanning process based on a preliminary stabilization with glucose, followed by a chromium tannage, has been optimized on semi-industrial scale. A higher chromium content in the tanned leather and a better exhaustion of the floats indicate that the presence of glucose in the hide improves the penetration and fixation of chromium. The stabilization with glucose allows the production of chromium-free waste shavings that may be reutilized through more sustainable routes. The crust leather obtained is characterized by mechanical and technical properties comparable to those of the traditionally ch

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2

Gochfeld, M., and C. Witmer. "A research agenda for environmental health aspects of chromium." Environmental Health Perspectives 92 (May 1991): 141–44. http://dx.doi.org/10.1289/ehp.9192141.

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3

Lindström, David, Yolanda Hedberg, and Inger Odnevall Wallinder. "Chromium(III) and Chromium(VI) Surface Treated Galvanized Steel for Outdoor Constructions: Environmental Aspects." Environmental Science & Technology 44, no. 11 (June 2010): 4322–27. http://dx.doi.org/10.1021/es1003022.

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4

Franchini, I., and A. Mutti. "Selected toxicological aspects of chromium(VI) compounds." Science of The Total Environment 71, no. 3 (June 1988): 379–87. http://dx.doi.org/10.1016/0048-9697(88)90210-0.

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5

MORIKAWA, Tsutomu, and Takuo NAKADE. "Environmental Aspects and Controlling Cr⁶⁺ Emissions of Chromium Electroplating." Journal of the Surface Finishing Society of Japan 68, no. 1 (2017): 14–20. http://dx.doi.org/10.4139/sfj.68.14.

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6

Biswal, Sudhansu Sekhar, Chittaranjan Panda, Priyanka Dash, Trilochan Jena, Smruti Ranjan Parida, and Duryodhan Sahu. "Feasibility and Environmental Compatibility of Concrete using Chromium Bearing Wastewater." Asian Journal of Chemistry 34, no. 6 (2022): 1483–87. http://dx.doi.org/10.14233/ajchem.2022.23695.

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The effluents of chrome plating industry seepage contain toxic hexavalent chromium generally in the range of 100 to 300 mg/L. The said values of chromium are not advisable to dispose to surface water bodies or land and the treatment process of this wastewater is quite expensive. Herein, we found a course of action to reuse the wastewater in cement matrix in manufacturing concrete work. The M-30 grade concrete samples were casted with portland slag cement (PSC) at wastewater to binder ratio of 0.45. The technical compatibility of concrete specimen i.e. the chromium immobilization and other prop

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7

Kress, Nurit. "Chemical Aspects of Coal Fly Ash Disposal at Sea: Predicting and Monitoring Environmental Impact." Water Science and Technology 27, no. 7-8 (April 1, 1993): 449–55. http://dx.doi.org/10.2166/wst.1993.0581.

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Monitoring studies at a deep sea fly ash dumping site found that the ash accumulates at the sea bed, causing a physical change in the sediments. Partial leaching of cadmium and chromium to seawater was detected in laboratory experiments, but no evidence of it was found in the sediments or benthic fauna sampled at the dumping site.

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Farooqi, Zahoor H., Muhammad Waseem Akram, Robina Begum, Weitai Wu, and Ahmad Irfan. "Inorganic nanoparticles for reduction of hexavalent chromium: Physicochemical aspects." Journal of Hazardous Materials 402 (January 2021): 123535. http://dx.doi.org/10.1016/j.jhazmat.2020.123535.

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9

Malovanyy, Myroslav, Oleg Blazhko, Halyna Sakalova, and Tamara Vasylinych. "Ecological Aspects of Clay Sorption Materials Usage in Leather and Fur Production Technologies." Materials Science Forum 1038 (July 13, 2021): 276–81. http://dx.doi.org/10.4028/www.scientific.net/msf.1038.276.

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The work is devoted to solving the current problem of increasing the level of environmental safety of treatment industrial wastewater of leather production from chromium ions (III) through the use of natural and modified bentonite. The studies of natural and modified bentonite use in the adsorption of Cr3 + ions were conducted. The influence of the process duration on the sorption efficiency of chromium ions was studied. Studies were conducted to use spent bentonite in tanning and filling processes. The efficiency of modification of montmorillonite has been proved and the expediency of using m

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Mytych, Piotr, Andrzej Karocki, and Zofia Stasicka. "Mechanism of photochemical reduction of chromium(VI) by alcohols and its environmental aspects." Journal of Photochemistry and Photobiology A: Chemistry 160, no. 3 (August 2003): 163–70. http://dx.doi.org/10.1016/s1010-6030(03)00235-1.

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11

Korallus, U. "Chromium compounds: Occupational health, toxicological and biological monitoring aspects†." Toxicological & Environmental Chemistry 12, no. 1-2 (October 1986): 47–59. http://dx.doi.org/10.1080/02772248609357149.

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12

Needleman, Carolyn. "Social aspects of high-risk notification among chromium-exposed workers." American Journal of Industrial Medicine 23, no. 1 (January 1993): 113–23. http://dx.doi.org/10.1002/ajim.4700230117.

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13

Rajeshwar, Krishnan, C. R. Chenthamarakshan, Scott Goeringer, and Miljana Djukic. "Titania-based heterogeneous photocatalysis. Materials, mechanistic issues, and implications for environmental remediation." Pure and Applied Chemistry 73, no. 12 (January 1, 2001): 1849–60. http://dx.doi.org/10.1351/pac200173121849.

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Using hexavalent chromium [Cr(VI)] and methylene blue (MB) as model substrates, we discuss three aspects of TiO2-based heterogeneous photocatalysis. We show first that a given TiO2 sample may not be simultaneously optimal for photocatalytically driving the reduction of Cr(VI) and the oxidation of MB. We further show that a TiO2 sample that strongly adsorbs either of these substrates in the dark is not optimal as a photocatalyst. The other two aspects concern circumventing the rather poor surface catalytic properties and visible light photoresponse of TiO2, respectively. Strategies revolving ar

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Bartlett, Lauren, P. Aarne Vesilind, and P. Aarne Vesilind. "Expediency and human health: The regulation of environmental chromium." Science and Engineering Ethics 4, no. 2 (June 1998): 191–201. http://dx.doi.org/10.1007/s11948-998-0049-3.

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15

Gurumurthy Iyer, Vijayan. "Environmental health impact assessment of chrome composite leather-clad rollers used by Indian cotton roller ginning industries and design and development of Eco-friendly alternatives." International Journal of Emerging Trends in Health Sciences 4, no. 1 (April 30, 2020): 36–67. http://dx.doi.org/10.18844/ijeths.v4i1.4496.

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This research article realises the hazards of chromium contamination and pollution caused by using chrome composite leather-clad (CCLC) rollers that are commonly used in the cotton roller ginning industries and attempts to eliminate the chromium contamination and pollution during the cotton ginning process. The chromium traces found contain hexavalent chromium being adsorbed from chromium-contaminated lint, yarn, fabrics, seeds, by-products and textile effluent. Chromium acts in three ways on humans, viz. (i) local action explained as dermatitis or absorption through skin, (ii) direct inhalati

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Radjenovic, Ankica, and Gordana Medunic. "HEXAVALENT CHROMIUM ADSORPTION CAPABILITY ONTO CARBON BLACK: KINETIC AND THERMODYNAMIC ASPECTS." Environmental Engineering and Management Journal 17, no. 8 (2018): 1931–39. http://dx.doi.org/10.30638/eemj.2018.192.

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17

Aththanayake, A. M. K. C. B., I. V. N. Rathnayake, and M. P. Deeyamulla. "Detoxification and Removal of Hexavalent Chromium in Aquatic Systems: Applications of Bioremediation." Nepal Journal of Biotechnology 10, no. 2 (December 31, 2022): 57–76. http://dx.doi.org/10.54796/njb.v10i2.243.

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Chromium is a transition metal with a wide range of applications in leather tanning, textile, electroplating, stainless steel production, inorganic chemical production and wood preservation industries due to yellow colouration, corrosion resistance, higher melting-point and crystalline structure with raging of oxidation states from 0 to +6. Trivalent and hexavalent chromium are the most abundant forms of chromium discharged into the aquatic environment by industries. It has been reported that hexavalent chromium is highly toxic than trivalent chromium due to the higher solubility, mobility and

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Yavorovskiy, Oleksandr, Sergii Omelchuk, Lyudmyla Sokurenko, Tetyana Zinchenko, Nina Solokha, Vasyl Aleksiichuk, and Roman Brukhno. "ENVIRONMENTAL AND OCCUPATIONAL HAZARDS OF METAL NANOCOMPOUNDS PRODUCTION AND APPLICATION: HYGIENIC, CLINICAL AND TOXICOLOGICAL ASPECTS." Wiadomości Lekarskie 72, no. 8 (2019): 1504–11. http://dx.doi.org/10.36740/wlek201908117.

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Introduction: Nanometals are the most common nanoobjects, used nearly in all industrial branches. Considerable advances in the nanotechnological production have led to progressive use of nanomaterials in industry, though occupational safety of the nanoindustry staff is insufficiently studied. The aim: Estimation of labor safety during production of metal nanoparticles for the purpose of defining necessary and efficient preventive measures. Materials and methods: The personnel of the hygienic departments of the O.Bogomolets National medical university have conducted numerous physiological, hygi

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Ciavatta, Claudio, Chiara Manoli, Luciano Cavani, Clizia Franceschi, and Paolo Sequi. "Chromium-Containing Organic Fertilizers from Tanned Hides and Skins: A Review on Chemical, Environmental, Agronomical and Legislative Aspects." Journal of Environmental Protection 03, no. 11 (2012): 1532–41. http://dx.doi.org/10.4236/jep.2012.311169.

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Basegio, T., C. Haas, A. Pokorny, A. M. Bernardes, and C. P. Bergmann. "Production of materials with alumina and ashes from incineration of chromium tanned leather shavings: Environmental and technical aspects." Journal of Hazardous Materials 137, no. 2 (September 21, 2006): 1156–64. http://dx.doi.org/10.1016/j.jhazmat.2006.03.059.

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21

Prado, Carolina, Mariana Rosa, Eduardo Pagano, Mirna Hilal, and Fernando E. Prado. "Seasonal variability of physiological and biochemical aspects of chromium accumulation in outdoor-grown Salvinia minima." Chemosphere 81, no. 5 (October 2010): 584–93. http://dx.doi.org/10.1016/j.chemosphere.2010.08.033.

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22

Shahtaheri, S. J., M. Khadem, F. Golbabaei, and A. Rahimi-Froushani. "Solid Phase Extraction for Monitoring of Occupational Exposure to Cr (III)." Analytical Chemistry Insights 2 (January 2007): 117739010700200. http://dx.doi.org/10.4137/117739010700200014.

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Chromium is an important constituent widely used in different industrial processes for production of various synthetic materials. For evaluation of workers' exposure to trace toxic metal of Cr (III), environmental and biological monitoring are essential processes, in which, preparation of samples is one of the most time-consuming and error-prone aspects prior to analysis. The use of solid-phase extraction (SPE) has grown and is a fertile technique of sample preparation as it provides better results than those produced by liquid-liquid extraction (LLE). SPE using mini columns filled with XAD-4

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Iov, Tatiana, Mihnea Costescu, Madalina Diac, Daniel Tabian, Sofia Mihaela David, Anton Knieling, and Simona Irina Damian. "Dangerous Chemical Agents: General and Odonto-Stomatological Aspects with Importance in Forensic Toxicology." Revista de Chimie 70, no. 5 (June 15, 2019): 1829–34. http://dx.doi.org/10.37358/rc.19.5.7225.

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In the heavy and light industry, the food and pharmaceutical industry, there are chemicals that contain metals with high toxic potential. Toxicity of metals is due to the harmful effect in certain forms and doses. Some metals become toxic when they form soluble compounds or in a certain chemical structure at certain doses (eg lead, mercury and candium). Not only heavy metals are toxic metals, there are also light metals that can become toxic, some of which are essential elements (iron, selenium, copper, chromium, zinc) and metals used therapeutically in medicine (aluminum, bismuth, gold, galli

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24

Li, Junguo, Bao Liu, Yanan Zeng, and Ziming Wang. "Mineralogical determination and geo-chemical modeling of chromium release from AOD slag: Distribution and leachability aspects." Chemosphere 167 (January 2017): 360–66. http://dx.doi.org/10.1016/j.chemosphere.2016.10.020.

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25

Cherchintsev, V. D., Ye V. Nefedova, and A. S. Kozlov. "Environmental aspects of implementation of resource-saving dolomite-free technologies of sodium monochromatee production at Novotroitsk Plant of Chromium Compounds." Vestnik of Nosov Magnitogorsk State Technical University 14, no. 1 (2016): 124–29. http://dx.doi.org/10.18503/1995-2732-2016-14-1-124-129.

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26

Fytianos, Konstantinos. "Speciation Analysis of Heavy Metals in Natural Waters: A Review." Journal of AOAC INTERNATIONAL 84, no. 6 (November 1, 2001): 1763–69. http://dx.doi.org/10.1093/jaoac/84.6.1763.

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Abstract Metal speciation in natural waters is of increasing interest and importance because toxicity, bioavailability, environmental mobility, biogeochemical behavior, and potential risk in general are strongly dependent on the chemical species of metals. This paper provides an overview of the need for speciation of heavy metals in natural waters, the chemical and toxicological aspects of speciation, and the analytical procedures for separation and the different techniques for final determination that are used today. The trends and developments of speciation are also discussed. Finally, the c

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27

Miškufová, Andrea, Alexandra Medvecová, Anna Kochmanová, Dušan Olčák, and Viktor Hronský. "Problems with Solidification of Fly Ashes from the Municipal Solid Waste Incineration." Applied Mechanics and Materials 832 (April 2016): 31–38. http://dx.doi.org/10.4028/www.scientific.net/amm.832.31.

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One of the negative aspects of MSW (municipal solid waste) incineration is production of hazardous fly ashes. MSW fly ash usually contains heavy metals like for example chromium, lead, cadmium and organic substances (dioxins, furans), soluble compounds (salts) and other harmful substances. According to environmental legislative and with respect to the environment fly ash as a hazardous waste should be stabilized before landfilling. This work deals with certain problems occurring at solidification process of MSW fly ash by cementation. This work also describes efficiency of stabilization by two

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Tarraste, Marek, Jakob Kübarsepp, Kristjan Juhani, Märt Kolnes, Mart Viljus, and Arvo Mere. "Sintering of High Mn Cemented Carbides in Mn-Rich Environment." Defect and Diffusion Forum 405 (November 2020): 402–7. http://dx.doi.org/10.4028/www.scientific.net/ddf.405.402.

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The economic, environmental and healthcare aspects are pushing cemented carbide industry to reduce or even avoid the usage of conventional binder metals – nickel and cobalt. Commonly, austenitic Fe-Ni alloys have been preferred choice for substituting Co. Similar to Ni, manganese acts as austenite stabilizer and studies have shown that Fe-Mn alloys offer alternative binder metal to Co and Ni in cemented tungsten carbides. In addition, Fe-Mn as a binder potentially offers improved wear resistance due to the well-known wear properties of Fe-Mn-C steels. Addition of chromium to the binder composi

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Ni, Xiaomin, and Yingjia Shen. "Transgenerational Effects of Hexavalent Chromium on Marine Medaka (Oryzias melastigma) Reveal Complex Transgenerational Adaptation in Offspring." Biomolecules 11, no. 2 (January 22, 2021): 138. http://dx.doi.org/10.3390/biom11020138.

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Hexavalent chromium [Cr(VI)] pollution is one of most serious heavy metal pollutants in the coastal area and posed serious threats to marine organisms and human beings. Many studies have been conducted on its toxicological effects on living organisms from morphological to physiological aspects. However, there are few studies about the transgenerational toxicological of Cr(VI). In this study, we exposed adult marine medaka fishes with Cr(VI) and their offspring with Cr(VI) to examine transgenerational effects of Cr(VI). We found that there were mechanisms such as changing reproduction modes in

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Shayakhmetov, Salim F., N. M. Meshchakova, L. G. Lisetskaya, A. V. Merinov, O. M. Zhurba, A. N. Alekseyenko, and V. S. Rukavishnikov. "HYGIENIC ASPECTS OF WORKING CONDITIONS IN THE MODERN PRODUCTION OF ALUMINUM." Hygiene and sanitation 97, no. 10 (October 15, 2018): 899–904. http://dx.doi.org/10.18821/0016-9900-2018-97-10-899-904.

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Introduction. The production of primary aluminum is one of the leading and belonging to the category of an increased health hazard for workers in the economy, which requires close attention to working conditions while modernizing production technology. Material and methods. The research methodology included a comprehensive study of working conditions and assessment of priority occupational risk factors, an in-depth study of the morphology, dispersed and component composition of dust and gas components air-suspended at different technologies of electrolysis of aluminum. Results. The leading pro

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Lanovenko, O. "Autistic spectrum disorders: genetic and epigenetic aspects (review of modern foreign publications)." Visnyk of Lviv University. Biological series, no. 85 (February 25, 2021): 3–17. http://dx.doi.org/10.30970/vlubs.2021.85.01.

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Autism spectrum disorders (ASD) are diseases of a complex interaction of heredity and the environment with an estimate of heritability from 40 to 80 %, the etiology of which is multigenic and heterogeneous (people with similar pathogenetic variants have completely different phenotypes). Genetic and epigenetic factors play a key role in the onset of pathology; among them, the most important are gene copy number variations (CNV), single nucleotide polymorphisms (SNP), epigenetic modulators. Different variations in gene copy numbers have been identified in people with autism, which explains the h

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V., Anantha Rama, Prakash P., and Kiran Kumar B.V. "Impact of Hazardous Industrial Waste on Health and Environment." Mapana - Journal of Sciences 5, no. 1 (July 25, 2006): 38–46. http://dx.doi.org/10.12723/mjs.8.5.

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From the days of primitive society, human and animals have used the resource of the earth to support life and to dispose waste. Rapid population growth and uncontrolled industrial development are seriously degrading the urban and semi-urban environment in many of the developing countries placing enormous strain on natural resources and undermining efficient and sustainable development. Industrial operations lead to considerable generation of hazardous waste and in rapidly industrializing countries such as India the contribution to hazardous waste from industries are largest. Hazardous waste ge

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Nirmala, A. "On the Phytotoxicity of Waste-Water from Textile Industry on Selected Crop Seed Germination and its Treatment Using Bacteria with Zinc Oxide Nanoparticles." Bioscience Biotechnology Research Communications 14, no. 4 (December 25, 2021): 1564–70. http://dx.doi.org/10.21786/bbrc/14.4.30.

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Industrialization plays a major role for the economic development of any nation. In spite of various positive aspects of industrialization, the foremost negative aspect is pollution by discharge of more waste water in to the environment. So, the aim of the present work is to analyse the phytotoxic effect of textile industry waste water on seed germination and treating the waste water using Bacterial Species and Zinc Oxide Nanoparticle. Physico-chemical parameters of dying industry waste water such as color, temperature, pH, conductivity, turbidity, total dissolved solid, total hardness, COD, B

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Zakaria, E. S. "Kinetic aspects of the ion-exchange reactions of Cs+, Na+, Sr2+and Eu2+ ions on the H+ form of chromium hexacyanoferrate(II)." Journal of Radioanalytical and Nuclear Chemistry 264, no. 3 (May 2005): 629–35. http://dx.doi.org/10.1007/s10967-005-0763-0.

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Izydorczyk, Grzegorz, Katarzyna Mikula, Dawid Skrzypczak, Krzystof Trzaska, Konstantinos Moustakas, Anna Witek-Krowiak, and Katarzyna Chojnacka. "Agricultural and non-agricultural directions of bio-based sewage sludge valorization by chemical conditioning." Environmental Science and Pollution Research 28, no. 35 (July 19, 2021): 47725–40. http://dx.doi.org/10.1007/s11356-021-15293-4.

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AbstractThis literature review outlines the most important—agricultural and non-agricultural—types of sewage sludge management. The potential of waste sludge protein hydrolysates obtained by chemical sludge conditioning was reported. The discussed areas include acidic and alkaline hydrolysis, lime conditioning, polyelectrolyte dewatering and other supporting techniques such as ultrasounds, microwave or thermal methods. The legislative aspects related to the indication of the development method and admission to various applications based on specified criteria were discussed. Particular attentio

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Journal, Baghdad Science. "Oilfield Produced Water Management: Treatment, Reuse and Disposal." Baghdad Science Journal 9, no. 1 (March 4, 2012): 124–32. http://dx.doi.org/10.21123/bsj.9.1.124-132.

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Produced water is accompanied with the production of oil and gas especially at the fields producing by water drive or water injection. The quantity of these waters is expected to be more complicated problem with an increasing in water cut which is expected to be 3-8 barrels water/produced barrel oil.Produced water may contain many constituents based on what is present in the subsurface at a particular location. Produced water contains dissolved solids and hydrocarbons (dissolved and suspended) and oxygen depletion. The most common dissolved solid is salt with concentrations range between a few

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Zhang, Li, Zheng Yang, Min Peng, and Xiaomeng Cheng. "Contamination Levels and the Ecological and Human Health Risks of Potentially Toxic Elements (PTEs) in Soil of Baoshan Area, Southwest China." Applied Sciences 12, no. 3 (February 7, 2022): 1693. http://dx.doi.org/10.3390/app12031693.

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The primary goals of this study were to reveal the environmental status of potentially toxic elements (PTEs) and their ecological risks, as well as their associated health risks in the Baoshan area, southwest China, which has been surveyed with the scale of 1:250,000 geochemical mapping. Based on a comparison of the PTE concentrations with the soil environmental quality of China and the enrichment factor (EF), geo-accumulation index (Igeo), contamination factor (Cf), and potential ecological risk indexes (Eri and PERI), as well as the potential non-carcinogenic hazard indices (HI and CHI) and

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Zaitseva, N. V., Irina V. May, S. V. Klein, S. S. Khankharev, and A. A. Boloshinova. "SCIENTIFIC AND METHODOLOGICAL ASPECTS AND PRACTICAL EXPERIENCE FOR THE FORMATION OF THE EVIDENTIAL BASE OF HAZARD TO HEALTH IN THE POPULATION IN THE ZONE OF INFLUENCE OF WASTE FROM THE PAST ECONOMIC ACTIVITY." Hygiene and sanitation 96, no. 11 (March 27, 2019): 1038–44. http://dx.doi.org/10.18821/0016-9900-2017-96-11-1038-1044.

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There are described an algorithm and methods for collecting the evidential base for causing hazard to the health of the population of Zakamensk (the Republic of Buryatia) in the zone of influence of the waste of the past activities of the Dzhidinsky tungsten-molybdenum combine. The source of danger is lying sands, containing a complex of toxic heavy metals - lead, cadmium, manganese, nickel, chromium, etc. The algorithm for the formation of the evidential base included: a general analysis of the sanitary and hygienic situation; assessment in the dynamics of the quality of atmospheric air, drin

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Dehghan, Saeed, Koroush Shahriar, Parviz Maarefvand, and Kamran Goshtasbi. "The Effect of Chromite Slag as a Binder Agent on Stress-Strain Behaviour of Cemented Tailing Backfill in Compression, a Case Study: Faryab Chromite Mine / Wpływ dodatku żużla zawierającego spoiwo w postaci chromitu na wytrzymałość na ściskanie materiału podsadzkowego zawierającego odpady pogórnicze z dodatkiem cementu. studium przypadku: kopalnia chromitu (żelaziaka chromowego) w faryab." Archives of Mining Sciences 58, no. 1 (March 1, 2013): 189–98. http://dx.doi.org/10.2478/amsc-2013-0013.

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Due to improving the environmental aspect and reduce the backfilling cost, the Faryab mine carry out researches into the replacement of cement by chromite slag. The test samples consisted of tailing from the washing plant of Faryab mine and different binders such as Portland cement, Pozzolanic cement and different combinations of Portland cement with chromite slag. The chromite slag produced by Ferrochromite refinery plant of this mine. The purpose of this paper is to analyze the findings from extensive laboratory test programs carried out to determine the effects of chromite slag on mechanica

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Matusiak, Jolanta, Joanna Wyciślik, and Andrzej Wyciślik. "Environmental Criteria for Shielding Gas Selection during Arc Welding of Stainless Steels." Solid State Phenomena 246 (February 2016): 275–78. http://dx.doi.org/10.4028/www.scientific.net/ssp.246.275.

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Gas-shielded arc welding of stainless steels belongs to processes which are characterized by the highest concentration of chromium (VI) and nickel in welding fume. These substances are carcinogenic to humans. Material and technological conditions of gas-shielded arc welding of stainless steels influence fume emission rates and chemical composition of welding fume. This fact creates the possibility of process optimization in aspect of emission rates and chemical composition of welding fume including carcinogenic compounds. This paper presents the correlation between shielding gas compositions a

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Ghosh, Sreejita, Amrita Jasu, and Rina Rani Ray. "Hexavalent chromium bioremediation with insight into molecular aspect: an overview." Bioremediation Journal 25, no. 3 (February 17, 2021): 225–51. http://dx.doi.org/10.1080/10889868.2021.1884529.

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Iyer, Vijayan Gurumurthy. "Social impact assessment process for an efficient socio-economic transformation towards poverty alleviation and sustainable development." New Trends and Issues Proceedings on Advances in Pure and Applied Sciences, no. 7 (November 30, 2016): 150–69. http://dx.doi.org/10.18844/gjpaas.v0i7.3175.

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   Abstract Sustainable social entrepreneurship (SSE) is a kind of entrepreneurship that meets the needs of the present without compromising the ability, efficiency and values of future generations to meet their own needs. SSE leads to sustainable development. Social entrepreneurs were developed through well-conceived and well directed training programmes around thrust areas, thus advancing the frontiers of theories and practice SSE. The concept of SSE challenges that fosters long-term protection of the society, environment and its habitants as the technological or engi

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Bhattacharya, Amrik, Anshu Gupta, Amarjeet Kaur, and Darshan Malik. "Alleviation of hexavalent chromium by using microorganisms: insight into the strategies and complications." Water Science and Technology 79, no. 3 (February 1, 2019): 411–24. http://dx.doi.org/10.2166/wst.2019.060.

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AbstractExcessive industrialization and anthropogenic activities have resulted in widespread prevalence of heavy metals including hexavalent chromium in the environment. In addition to toxic properties, Cr(VI) possesses high stability and mobility, which in total makes it included in the list of priority heavy metals; thus it needs to be managed urgently. Among different methods available for remediation of Cr(VI), bioremediation is considered as one of the sustainable methods which could effectively be utilized for controlling Cr(VI) pollution. In this aspect, the treatment of Cr(VI)-containi

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Kim, Gyung Guk, Joung Ah Kang, Seon Jin Kim, Sun Jae Kim, and Seung Han Shin. "Improved Adhesion to ABS Plastics by a Photocatalytic Reaction." Materials Science Forum 544-545 (May 2007): 75–78. http://dx.doi.org/10.4028/www.scientific.net/msf.544-545.75.

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The pretreatment of ABS (acrylonitrile-butadiene-styrene) plastics prior to metallization has been generally performed with strong acids, such as sulfuric, chromic, or potassium-permanganate acid. However, conventional wet-chemical pretreatment presents inherent environmental and safety problems to consider. In particular, the presence of Cr+6 imposes a serious environmental threat. Therefore, in this study, aspects of pretreatment, using the photocatalytic reaction in TiO2 sol, were investigated as a replacement for wet-chemical pretreatment. Surface characterization, before and after the pre

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Das, B. K., P. K. Das, and P. Dash. "Evaluation of Phenotypic Responses of Selected Rice (Oryza sativa L.) Cultivars to Hexavalent Chromium Stress in Soil." Nature Environment and Pollution Technology 21, no. 3 (September 1, 2022): 1341–47. http://dx.doi.org/10.46488/nept.2022.v21i03.041.

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The current work is designed to search for suitable rice (Oryza sativa L.) cultivars capable of growing on Cr(VI), hexavalent chromium contaminated soils. The study of tolerance and phenotypical changes of three selected rice cultivars like Bina Dhan 11, Kalachampa, and Pratikshya, at the seedling stages, was done under soil Cr(VI) concentrations up to 300 mg.kg-1 of soil. The 7-day seedlings of these rice cultivars growing on Cr(VI) treated soils were found to exhibit a significant reduction in shoot and root growth at p ≤ 0.05. The experimental results support that 7-day seedlings of Bina Dh

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Gómez-Aguilar, Dora Luz, Javier Andrés Esteban-Muñoz, Juan Pablo Rodríguez-Miranda, Deisy Baracaldo-Guzmán, and Octavio José Salcedo-Parra. "Desorption of Coffee Pulp Used as an Adsorbent Material for Cr(III and VI) Ions in Synthetic Wastewater: A Preliminary Study." Molecules 27, no. 7 (March 27, 2022): 2170. http://dx.doi.org/10.3390/molecules27072170.

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Some of the diverse agro-industrial waste generated in primary or secondary stages have proved to be promising biomaterials for treating aqueous effluents contaminated, in this case, with heavy metals. Therefore, it is necessary to know their optimal operating conditions and the regeneration or reusability of the solid by-product, an aspect related to desorption. Considering the above, this article presents the findings of a preliminary study related to the desorption process of coffee pulp without physicochemical modification (Castilla variety), an agricultural waste used as a sorbent of Cr(I

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Senthurchelvan, R., Y. Wang, S. Basak, and K. Rajeshwar. "Reduction of Hexavalent Chromium in Aqueous Solutions by Polypyrrole: II. Thermodynamic, Kinetic, and Mechanistic Aspects." Journal of The Electrochemical Society 143, no. 1 (January 1, 1996): 44–51. http://dx.doi.org/10.1149/1.1836385.

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Yamina, Benmalek, Benayad Tahar, and Fardeau Marie Laure. "Isolation and screening of heavy metal resistant bacteria from wastewater: a study of heavy metal co-resistance and antibiotics resistance." Water Science and Technology 66, no. 10 (November 1, 2012): 2041–48. http://dx.doi.org/10.2166/wst.2012.355.

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The uncontrolled discharges of wastes containing a large quantity of heavy metal create huge economical and healthcare burdens particularly for people living near that area. However, the bioremediation of metal pollutants from wastewater using metal-resistant bacteria is a very important aspect of environmental biotechnology. In this study, 13 heavy metal resistant bacteria were isolated from the wastewater of wadi El Harrach in the east of Algiers and characterized. These include zinc-, lead-, chromium- and cadmium-resistant bacteria. The metal-resistant isolates characterized include both Gr

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Xia, Lin, Ejii Akiyama, Gerald Frankel, and Richard McCreery. "Storage and Release of Soluble Hexavalent Chromium from Chromate Conversion Coatings Equilibrium Aspects of Cr[sup VI] Concentration." Journal of The Electrochemical Society 147, no. 7 (2000): 2556. http://dx.doi.org/10.1149/1.1393568.

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Diotti, Alessandra, Giovanni Plizzari, and Sabrina Sorlini. "Leaching Behaviour of Construction and Demolition Wastes and Recycled Aggregates: Statistical Analysis Applied to the Release of Contaminants." Applied Sciences 11, no. 14 (July 6, 2021): 6265. http://dx.doi.org/10.3390/app11146265.

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Construction and demolition wastes represent a primary source of new alternative materials which, if properly recovered, can be used to replace virgin raw materials partially or totally. The distrust of end-users in the use of recycled aggregates is mainly due to the environmental performance of these materials. In particular, the release of pollutants into the surrounding environment appears to be the aspect of greatest concern. This is because these materials are characterized by a strong heterogeneity which can sometimes lead to contaminant releases above the legal limits for recovery. In t

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