Results 171 to 180 of about 42,267 (215)

Adsorption of heavy metals on kaolinite and montmorillonite: a review

Physical Chemistry Chemical Physics, 2012
The process of adsorption is considered to be one of the best water treatment technologies around the world. Different heavy metals, due to their toxic and hazardous nature, are possibly the most widespread groundwater contaminants imposing a serious threat to human health.
Susmita, Sen Gupta, Krishna G, Bhattacharyya   +1 more
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Adsorption of heavy metal ions by immobilized phytic acid

Applied Biochemistry and Biotechnology, 1997
Phytic acid (myoinositol hexaphosphate) or its calcium salt, phytate, is an important plant constituent. It accounts for up to 85% of total phosphorus in cereals and legumes. Phytic acid has 12 replaceable protons in the phytic molecule, rendering it the ability to complex with multivalent cations and positively charged proteins. Poly 4-vinyl pyridine (
G T, Tsao, Y, Zheng, J, Lu, C S, Gong
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Adsorption of Heavy Metals–A Review

Materials Today: Proceedings, 2019
Abstract Many researchers have used coal fly ash; rice husk ash, nano material and conducting polymer- as adsorbents to remove water pollutants including Cr, Pb, Hg, Zn, Mn and Cu, heavy metal. The main objective in this study to identify the nano materials used for heavy metal adsorption process effectively.
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The Adsorption of Heavy Metal Ions

Advances in Science and Technology
The aim of the study is to research of the adsorption properties of heavy metal ions Pb2+, Cd2+ and Ni2+ from industrial wastewater. For the adsorption of heavy metal ions, natural clinoptilolite was used, which belongs to the Ai-Dag deposit of the Tovuz-Kazakh region of Azerbaijan.
Fakhraddin Yusubov, Miryusif Mirbabayev, Gulahmad Talibov, Ilham Aliyev, Govhar Valiyeva   +4 more
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Competitive Adsorption of Heavy Metals by Soils

Journal of Environmental Quality, 1986
AbstractThe competitive adsorption of Cd, Cu, Pb, and Zn from 0.025 M NaClO4 solutions onto four soils with differing chemical properties was investigated with batch adsorption experiments. For two mineral soils, adsorption under acidic conditions (pH 5.0) followed the sequence Pb > Cu > Zn > Cd, which corresponds to the order of increasing pK
H. A. Elliott, M. R. Liberati, C. P. Huang   +2 more
openaire   +1 more source

Heavy metal adsorption to tea waste

Bolgoda Plains, 2022
When the cool morning breeze seeps through the window, sipping a warm cup of tea breathes life into your body and heart. Yet, the tea dregs that remain are a mere afterthought miserably lying at the bottom of a waste basket. However, the dregs that we consider waste can be used to address a significant problem in the country—heavy metal contamination.
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Insights into the role of extracellular DNA in heavy metal adsorption

Science of The Total Environment, 2022
Extracellular polymeric substances (EPS) participate in heavy metal adsorption in the aquatic environments. Extracellular DNA (eDNA) is an essential component of EPS, but its involvement in metal binding remains ambiguous. Herein, the role of eDNA in Cd(II) and Ni(II) adsorption was described using a combination of semi-quantitative and qualitative ...
Tangjian, Peng, Wanqing, Liao, Guohua, Gu, Guanzhou, Qiu, Xueling, Wu, Fei, Yang, Weimin, Zeng   +6 more
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Adsorption of Heavy Metals to Microbial Biomass

2003
The finding that several microorganisms are able to bind and accumulate heavy metals suggested the possibility to use them for removal of metals from solutions by the process called biosorption. Although biosorption of heavy metals was studied also with plants (mosses, leaves of trees) and marine macroalgae, microorganisms seem to be the most promising
P. Baldrian, J. Gabriel
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THE EFFECT OF HYDRATION ON ADSORPTION AND DESORPTION OF HEAVY METALS IN SOILS

Journal of Environmental Science and Health, Part A, 2001
Cr, Ni, and Cd adsorption-desorption on five characterized Taiwan soils was studied. The potential for toxicity and the fate of metals in the soils is dependent upon the ability of the metals to desorb into the aqueous phase. To simulate field conditions, the soils were subjected to wet-dry cycles.
S Z, Lee, L, Chang, C M, Chen, H H, Yang, P Y, Hu   +4 more
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Adsorption of heavy metal ions by sawdust of deciduous trees

Journal of Hazardous Materials, 2009
The adsorption of heavy metal ions from synthetic solutions was performed using sawdust of beech, linden and poplar trees. The adsorption depends on the process time, pH of the solution, type of ions, initial concentration of metals and the sawdust concentration in suspension.
D, Bozić, V, Stanković, M, Gorgievski, G, Bogdanović, R, Kovacević   +4 more
openaire   +2 more sources