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The results indicated the synthesized zeolites had good Hg 0 removal activity.Ma et al. (2019) used a similar method for the preparation of magnetic zeolites derived from fly ash to remove Hg 0 in ...
• Removal of water and CO 2 before methane liquefaction • Removal of water and sulfur compounds to protect gas transmission pipelines • Dehydration of natural gas liquids • Desulfurization of feed streams for ammonia and other chemical plants • Removal of mercury, preventing damage to aluminum heat exchangers Petroleum refining
Adsorption technique is a very efficient method of contaminant removal. To increase the applicability of the adsorption technique, its cost could be reduced (Karri et …
Adsorptive Removal of Mercury by Zeolites and Montmorillonite. September 2019. Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental …
5. Conclusions. The present results have shown that zeolite can be considered promising materials for the removal of toxic compounds, such as mercury, radionuclides, and petroleum substances. The results of mercury removal in pure stream of gas have shown that silver impregnation greatly improves zeolites efficiencies.
Zeolites for Mercury Removal from Wastewater Z Tauanov 1,3, D Shah, G Itskos2 and V Inglezakis1,3 1School of Engineering, Chemical Engineering Department, Environmental Science and Technology Group (ESTg), Nazarbayev University, Astana, 010000, Kazakhstan 2School of Materials Engineering, Purdue University, West …
Efficient mercury removal from water by using modified natural zeolites and comparison to commercial adsorbents. V. Inglezakis, A. Kudarova, +2 authors. Z. …
Investigation of the sorption of mercury vapour from exhaust gas by an Ag-X zeolite. Abstract The removal of gaseous mercury from flue gases from coal-fired power plants is currently an environmental challenge under investigation. Therefore, the main aim of this paper was to evaluate….
reported that zeolites are materials that can be used for mercury removal from soils (Haidouti, 1997), flue gases (Morency et al., 2002; Jurng et al., 2002) and solutions (Filippids et al., 1996; Misaelides and Godelitsas, 1995; Zamzow et al., 1990). Zeolites are considered to be, next to clays, iron-oxide-coated sands and activated carbons ...
This study applies the use of fly ash-derived zeolites X and A to capture elemental mercury from a gas stream.A novel hybrid synthesis method was developed, which included the crystallization stage of zeolites, together with silver or iron modification. The method applied resulted in obtaining the pure and high-crystalline zeolites of …
The potential application of the products synthesized from CFAs was studied and the results suggested that CFA zeolites had a good activity for Hg removal from the simulation coal gas. ... by using copper bromide modification. In this paper, CuBr 2-TCS was subjected to elemental mercury (Hg 0) removal experiment in simulated coal-fired …
Novel magnetic biochars (MBC) were prepared by one-step pyrolysis of FeCl3-laden biomass and employed for Hg0 removal in simulated combustion flue gas. The sample characterization indicated that highly dispersed Fe3O4 particles could be deposited on the MBC surface. Both enhanced surface area and excellent magnetization property …
The zeolites (Na-X, Na-P1 and clinoptilolite) needed for mercury capture were activated by silver ions; however, for the removal of petroleum substances (Na-X and Na-P1) as well as radionuclides ...
Abstract. The paper discusses the application of natural zeolites from clinoptilolite group for mercury removal from industrial effluents from copper smelter and refinery. The …
Laboratory and industrial scale experiments showed that zeolite was capable of mercury ions removal from the effluent. Currently, the company uses the proposed …
Zhan Shi & Shengqian Ma. Nature Communications 5, Article number: 5537 ( 2014 ) Cite this article. 17k Accesses. 439 Citations. 188 Altmetric. Metrics. Highly effective and highly efficient...
The synthesized materials were used for the removal of Hg 2+ from aqueous solutions. The results demonstrated that nanocomposites can remove 99% of Hg 2+, up to 10% and 90% higher than the removal achieved by the zeolite and the parent fly ash, respectively. Leaching studies further demonstrated the superiority of the …
DOI: 10.1016/j.scp.2023.101017 Corpus ID: 256532528; Efficient mercury removal from water by using modified natural zeolites and comparison to commercial adsorbents @article{Inglezakis2023EfficientMR, title={Efficient mercury removal from water by using modified natural zeolites and comparison to commercial adsorbents}, author={Vassilis …
Three different zeolites (5A, ZSM-5, and silicalite-I) chosen from two topological configurations (LTA/MFI) were modified with FeCl3 via the chemical impregnation method to remove elemental mercury (Hg0). Influence of different parameters, including zeolite topological configurations, reaction temperature, and flue …
Zeolites are three-dimensional framework of Si-O-Al network and these are highly crystalline and microporous aluminosilicate materials. Basically, zeolites are differentiated by their three-dimensional connectivity of Si-O-Al network and specific pore architecture. ... Vapor phase mercury removal using pristine adsorbents is challenging …
DOI: 10.1016/J.MINENG.2004.03.002 Corpus ID: 56041886; The application of natural zeolites for mercury removal: from laboratory tests to industrial scale @article{Chojnacki2004TheAO, title={The application of natural zeolites for mercury removal: from laboratory tests to industrial scale}, author={Andrzej Ł.
Clinoptilolite zeolites were chemically modified with chitosan (Chit) and magnetic iron oxide nanoparticles (Fe3O4NPs) were synthesized for removal of mercury from liquid condensate hydrocarbon.
This review also presents an overview of CFA zeolites application in environmental applications like water treatment, gas adsorption and soil remediation. ... Chang LP, Bao W R (2015). Supercritical hydrothermal synthesis of zeolites from coal fly ash for mercury removal from coal derived gas. Fuel Processing Technology, 136, …
However, there are limited studies on the removal of mercury from water by use of CFA-derived zeolites, as for instance this of Attari et al. [13] and only few on their silver forms, these of Czarna et al. [14] who used ion exchanged Ag-zeolites and Tauanov et al. [15, 16] who used Ag 0-zeolites.
Considering the importance of the removal of mercury from water, and the clear advantages and capabilities that zeolites present for this application, we have employed classical molecular dynamics simulations to study the exchange of Na + for Hg 2 + in zeolite Na-A (of the LTA framework topology, Si/Al = 1) and zeolite Na-Y (of …
Zeolites for Mercury Removal from Waste water . Z Tauanov 1,3, D Shah 1, G Itskos 2 and V Inglezakis 1,3. 1 School o f E ngineering, Chemical E ngineering Depar tment, Environmental Sc ience and .
Biochars can remove potentially toxic elements, such as inorganic mercury [Hg(II)] from contaminated waters. However, their performance in complex water matrices is rarely investigated, and the combined roles of natural organic matter (NOM) and ionic composition in the removal of Hg(II) by biochar remain unclear. Here, we investigate the influence of …
After months of testing zeolites in the laboratory using a high-end Agilent 7700x ICP-MS instrument, I can now publicly state that zeolites are NOT effective at capturing or eliminating most heavy metals, including lead, …
Among diverse existing mercury removal technologies, sorbent adsorption and catalytic oxidation have been deemed as the two most effective routes for reduction of Hg 0 emission [13, 14]. ... Zeolites with a much bigger specific surface area appears to be an alternative carrier for Co 3 O 4-based composites [[102], [103], [104]].
Adsorption is a superior method for removing and recycling high concentration of mercury from nonferrous metal smelting flue gas, especially adsorbents with good sulfur resistance and large adsorption capacity.In this study, Co and Mn oxide-modified layered ITQ-2 zeolites were designed to capture and recycle elemental …
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