Insights into the estimation of heavy metals ions sorption from aqueous environment onto natural zeolite

2018 ◽

Vol 4 (02) ◽

Author(s):

Seroor Atalah Khaleefa Alia ◽

Dr. Mohammed Ibrahimb ◽

Hussein Ali Hussein

Keyword(s):

Heavy Metals ◽

Contact Time ◽

Organic Dyes ◽

Low Cost ◽

Dye Adsorption ◽

Contaminated Water ◽

Maximum Adsorption Capacity ◽

Engineering Designs ◽

Heavy Metals Ions ◽

Coated Sand

Adsorption is most commonly applied process for the removal of pollutants such as dyes and heavy metals ions from wastewater. The present work talks about preparing graphenic material attached sand grains called graphene sand composite (GSC) by using ordinary sugar as a carbon source. Physical morphology and chemical composition of GSC was examined by using (FTIR, SEM, EDAX and XRD). Efficiency of GSC in the adsorption of organic dyes from water was investigated using reactive green dye with different parameters such as (ph, temperature, contact time and dose). Adsorption isotherm was also studied and the results showed that the maximum adsorption capacity of dye is 28.98 mg/g. This fast, low-cost process can be used to manufacture commercial filters to treat contaminated water using appropriate engineering designs.

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COPPER (Cu2+) REMOVAL FROM WATER USING NATURAL ZEOLITE FROM GEDANGSARI, GUNUNGKIDUL, YOGYAKARTA

Journal of Applied Geology ◽

10.22146/jag.7253 ◽

2015 ◽

Vol 2 (2) ◽

Author(s):

Wahyu Wilopo ◽

Septiawan Nur Haryono ◽

Doni Prakasa Eka Putra ◽

I Wayan Warmada ◽

Tsuyoshi Hirajima

Keyword(s):

Waste Water ◽

Economic Growth ◽

Heavy Metals ◽

Natural Zeolite ◽

Adsorption Equilibrium ◽

Waste Water Treatment ◽

Batch Test ◽

Maximum Capacity ◽

Geological Materials ◽

Langmuir Adsorption

Development of indusrialization and urbanization not only increase economic growth but also contribute to the environmental degradation, especially contamination of heavy metals in water. In other side, there are many geological materials have capability to immobilize heavy metals. Therefore, the objective of this research is to know the maximum capacity of natural zeolite from Trembono area, Gunung Kidul regency to immobilize copper (Cu2+) from water and to understand their mechanism. This experiment was carry out by a batch test. The result showed that the maximum capacity of zeolite to immobilize Cu (qmax) is 63,69 mmolCu/kg Zeolite according to Langmuir adsorption equilibrium model. In addition, the capability to immobilize Cu will increases due to decreasing the grain size. The result of this research can be used as an alternative for waste water treatment, especially Cu. Keywords: Removal, copper (Cu2+), natural zeolite, Langmuir isotherm

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Synthesis, characterization and heavy metal removal efficiency of nickel ferrite nanoparticles (NFN’s)

Scientific Reports ◽

10.1038/s41598-021-83363-1 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Waheed Ali Khoso ◽

Noor Haleem ◽

Muhammad Anwar Baig ◽

Yousuf Jamal

Keyword(s):

Heavy Metals ◽

Nickel Ferrite ◽

Contact Time ◽

Metal Removal ◽

Heavy Metal Removal ◽

Ferrite Nanoparticles ◽

Batch Adsorption ◽

Aqueous Environment ◽

Human Beings ◽

Nickel Ferrite Nanoparticles

AbstractThe heavy metals, such as Cr(VI), Pb(II) and Cd(II), in aqueous solutions are toxic even at trace levels and have caused adverse health impacts on human beings. Hence the removal of these heavy metals from the aqueous environment is important to protect biodiversity, hydrosphere ecosystems, and human beings. In this study, magnetic Nickel-Ferrite Nanoparticles (NFNs) were synthesized by co-precipitation method and characterized using X-Ray Diffraction (XRD), Energy Dispersive Spectroscopy (EDS) and Field Emission Scanning Electronic Microscopy (FE-SEM) techniques in order to confirm the crystalline structure, composition and morphology of the NFN’s, these were then used as adsorbent for the removal of Cr(VI), Pb(II) and Cd(II) from wastewater. The adsorption parameters under study were pH, dose and contact time. The values for optimum removal through batch-adsorption were investigated at different parameters (pH 3–7, dose: 10, 20, 30, 40 and 50 mg and contact time: 30, 60, 90, and 120 min). Removal efficiencies of Cr(VI), Pb(II) and Cd(II) were obtained 89%, 79% and 87% respectively under optimal conditions. It was found that the kinetics followed the pseudo second order model for the removal of heavy metals using Nickel ferrite nanoparticles.

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Combined Influence of Low-Grade Metakaolins and Natural Zeolite on Compressive Strength and Heavy Metal Adsorption of Geopolymers

Minerals ◽

10.3390/min11050486 ◽

2021 ◽

Vol 11 (5) ◽

pp. 486

Author(s):

Alcina Johnson Sudagar ◽

Slávka Andrejkovičová ◽

Fernando Rocha ◽

Carla Patinha ◽

Maria R. Soares ◽

...

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Compressive Strength ◽

Natural Zeolite ◽

Metal Adsorption ◽

Low Grade ◽

Heavy Metal Adsorption ◽

Adsorption Model ◽

X Ray ◽

Adsorption Capacities

Metakaolins (MKs) prepared from low-grade kaolins located in the Alvarães (A) and Barqueiros (B) regions of Portugal were used as the aluminosilicate source to compare their effect on the compressive strength and heavy metal adsorption of geopolymers. Natural zeolite, an inexpensive, efficient adsorbent, was used as an additive in formulations to enhance geopolymers’ adsorption capacities and reduce MK utilization’s environmental footprint. Geopolymers were synthesized with the replacement of MK by zeolite up to 75 wt.% (A25, B25—25% MK 75% zeolite; A50, B50—50% MK 50% zeolite; A75, B75—75% MK 25% zeolite; A100, B100—100% MK). The molar ratios of SiO2/Al2O3 and Na2O/Al2O3 were kept at 1 to reduce the sodium silicate and sodium hydroxide environmental impact. Geopolymers’ crystallography was identified using X-ray diffraction analysis. The surface morphology was observed by scanning electron microscopy to understand the effect of zeolite incorporation. Chemical analysis using X-ray fluorescence spectroscopy and energy dispersive X-ray spectroscopy yielded information about the geopolymers’ Si/Al ratio. Compressive strength values of geopolymers obtained after 1, 14, and 28 days of curing indicate high strengths of geopolymers with 100% MK (A100—15.4 MPa; B100—32.46 MPa). Therefore, zeolite did not aid in the improvement of the compressive strength of both MK-based geopolymers. The heavy metal (Cd2+, Cr3+, Cu2+, Pb2+, and Zn2+) adsorption tests exhibit relatively higher adsorption capacities of Barqueiros MK-based geopolymers for all the heavy metals except Cd2+. Moreover, zeolite positively influenced divalent cations’ adsorption on the geopolymers produced from Barqueiros MK as B75 exhibits the highest adsorption capacities, but such an influence is not observed for Alvarães MK-based geopolymers. The general trend of adsorption of the heavy metals of both MK-based geopolymers is Pb2+ > Cd2+ > Cu2+ > Zn2+ > Cr3+ when fitted by the Langmuir isotherm adsorption model. The MK and zeolite characteristics influence geopolymers’ structure, strength, and adsorption capacities.

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Possibilities of microscopic detection of heavy metals ions in plant tissues

Toxicology Letters ◽

10.1016/j.toxlet.2010.03.927 ◽

2010 ◽

Vol 196 ◽

pp. S294

Author(s):

R. Kizek ◽

O. Krystofova ◽

P. Babula ◽

M. Beklova ◽

L. Havel ◽

...

Keyword(s):

Heavy Metals ◽

Plant Tissues ◽

Microscopic Detection ◽

Heavy Metals Ions

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Effects of Natural Zeolite and Bentonite on the Phytoavailability of Heavy Metals in Chicory

Environmental Restoration of Metals-Contaminated Soils ◽

10.1201/9781420026269.ch13 ◽

2000 ◽

pp. 261-271 ◽

Cited By ~ 2

Author(s):

László Simon

Keyword(s):

Heavy Metals ◽

Natural Zeolite

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REDUCTION OF METAL CATIONS CONTENT FROM THE AQUEOUS SOLUTIONS BY SORBENTS

MM Science Journal ◽

10.17973/mmsj.2021_12_2021044 ◽

2021 ◽

Vol 2021 (6) ◽

pp. 5307-5311

Author(s):

IVETA PANDOVA ◽

◽

MIROSLAV RIMAR ◽

Keyword(s):

Heavy Metals ◽

Aqueous Solutions ◽

Natural Zeolite ◽

Metal Cations ◽

Sorption Kinetics ◽

Synthetic Zeolite ◽

Natural Zeolites ◽

Chemically Treated ◽

Synthetic Zeolites

The article presents the results of research on reducing the concentration of heavy metals, such as copper and nickel, on natural zeolite in comparison with synthetic zeolite and chemically treated natural zeolite. The reduction of the content of specific types of heavy metals from aqueous solutions was investigated by the method of sorption kinetics. The results indicate the ability of natural zeolites to compete with synthetic zeolites.

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