Selective Removal of Heavy Metals from Drinking Water Using Titanium Dioxide Nanowire

2014 ◽  
Vol 337 (1) ◽  
pp. 96-101 ◽  
Author(s):  
Ahmed M. Youssef ◽  
Farag M. Malhat
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Titanium Dioxide ◽  
Selective Removal ◽  
Removal Of Heavy Metals

Preparation of Nanometer Titanium Dioxide Adsorbent and its Application in Industrial Wastewater Treatment

2012 ◽  
Vol 573-574 ◽  
pp. 521-525
Author(s):  
Nan Zhang ◽  
Pu Liu ◽  
Ben Quan Fu ◽  
Li Na Wang
Keyword(s):  
Heavy Metals ◽  
Titanium Dioxide ◽  
Wastewater Treatment ◽  
Hydrochloric Acid ◽  
Surface Area ◽  
Industrial Wastewater ◽  
Operating Conditions ◽  
Adsorption Condition ◽  
Removal Of Heavy Metals ◽  
Nanometer Titanium Dioxide

In this paper, nanometer titanium dioxide was synthesized by a simple reaction. The prepared adsorbent was characterized by surface area and porosimetry analyzer and it was used for the removal of heave metals in industrial wastewater. The main parameters affecting the adsorption of heavy metals including pH, adsorption condition and elution condition have been investigated in detail. Under the optimized operating conditions, most of the target heavy metals could be fast removed. The adsorbent could be simply regenerated by hydrochloric acid. Thus, the prepared nanometer titanium dioxide was an adsorbent which is suitable for the removal of heavy metals in industrial wastewater.

scholarly journals Simultaneous removal of heavy metals from drinking water by banana, orange and potato peel beads: a study of biosorption kinetics

2021 ◽  
Vol 11 (7) ◽  
Author(s):  
Risha Jasmine Nathan ◽  
Candace E. Martin ◽  
Dave Barr ◽  
Rhonda J. Rosengren
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Surface Heterogeneity ◽  
Simultaneous Removal ◽  
Potato Peel ◽  
Ph Values ◽  
Removal Of Heavy Metals ◽  
Initial Ph ◽  
Potato Peels ◽  
Experimental Values

AbstractBanana, orange and potato peels (BP, OP and PP, respectively) were immobilised to produce biosorbent beads that were employed for the biosorption of heavy metals from a cocktail solution containing As(V), Cd(II), Cr(VI), Cu(II), Hg(II) and Ni(II) ions. Drinking water conditions were maintained with neutral initial pH and low concentration of the ions. Batch experiments were performed for evaluating the effect of pH in the drinking water range (6.5–8.5). Results showed a significant increase in the biosorption capacity of the beads with respective to the uptake of As and Pb, whereas it decreased significantly for Cd, Cu, Hg and Ni ions at basic pH values. Approximate equilibrium biosorption of Cd, Cu, Hg and Ni was 89–92%, 79–87%, 84% and 71–80% by BP, OP and PP beads. The physisorption-based PFO model was the most suitable for the ions with biosorption capacities closer to the experimental values. BP and OP beads had better biosorption efficiencies relative to PP bead due to the higher surface heterogeneity observed by scanning electron microscopy coupled with energy-dispersive spectroscopy. An increase in the biosorbent concentration from one to ten BP beads significantly increased the biosorption percentage of the ions. The biosorption capacities of Cd, Hg and Ni uptake by one BP bead from a 1 mgL−1 cocktail solution were 3.4 ± 0.0, 5.3 ± 0.1 and 3.0 ± 0.0 mgg−1, respectively. Thus, BP beads were the most effective than for the simultaneous removal of heavy metals from drinking water.

Elaborate design of polymeric nanocomposites with Mg(ii)-buffering nanochannels for highly efficient and selective removal of heavy metals from water: case study for Cu(ii)

2018 ◽  
Vol 5 (10) ◽  
pp. 2440-2451 ◽  
Author(s):  
Qina Sun ◽  
Yujia Yang ◽  
Zhixue Zhao ◽  
Qingrui Zhang ◽  
Xinmei Zhao ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Metal Oxide ◽  
Selective Removal ◽  
Polymeric Nanocomposites ◽  
Highly Efficient ◽  
Removal Of Heavy Metals ◽  
Nanostructured Metal

Zr/Mg oxide-PS was designed to extend the applicability of nanostructured metal oxide bearing composites to Cu(ii) removal in acidic wastewaters.

Selective removal of heavy metals from landfill leachate by reactive granular filters

2018 ◽  
Vol 644 ◽  
pp. 335-341 ◽  
Author(s):  
Stefania Bilardi ◽  
Paolo S. Calabrò ◽  
Rosa Greco ◽  
Nicola Moraci
Keyword(s):  
Heavy Metals ◽  
Landfill Leachate ◽  
Selective Removal ◽  
Removal Of Heavy Metals ◽  
Granular Filters

2D water-stable zinc-benzimidazole framework nanosheets for ultrafast and selective removal of heavy metals

2020 ◽  
Vol 382 ◽  
pp. 122658 ◽  
Author(s):  
Rongming Xu ◽  
Meipeng Jian ◽  
Qinghua Ji ◽  
Chengzhi Hu ◽  
Chaochun Tang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Selective Removal ◽  
Removal Of Heavy Metals
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