Dietary Uptake of Cu Sorbed to Hydrous Iron Oxide is Linked to Cellular Toxicity and Feeding Inhibition in a Benthic Grazer

2016 ◽  
Vol 50 (3) ◽  
pp. 1552-1560 ◽  
Author(s):  
Daniel J. Cain ◽  
Marie-Noële Croteau ◽  
Christopher C. Fuller ◽  
Amy H. Ringwood
Keyword(s):  
Iron Oxide ◽  
Cellular Toxicity ◽  
Feeding Inhibition ◽  
Dietary Uptake ◽  
Hydrous Iron Oxide

scholarly journals Selenate Adsorption from Water Using the Hydrous Iron Oxide-Impregnated Hybrid Polymer

Metals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1630
Author(s):  
Vesna Marjanovic ◽  
Aleksandra Peric-Grujic ◽  
Mirjana Ristic ◽  
Aleksandar Marinkovic ◽  
Radmila Markovic ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Adsorption Capacity ◽  
Ph Value ◽  
Xrd Analysis ◽  
Maximum Adsorption Capacity ◽  
Solution Ph ◽  
Adsorbent Regeneration ◽  
Desorption Efficiency ◽  
Hydrous Iron Oxide ◽  
The Cross

Hybrid adsorbent, based on the cross-linked copolymer impregnated with hydrous iron oxide, was applied for the first time for Se(VI) adsorption from water. The influence of the initial solution pH, selenate concentration and contact time to adsorption capacity was investigated. Adsorbent regeneration was explored using a full factorial experimental design in order to optimize the volume, initial pH value and concentration of the applied NaCl solution as a reagent. Equilibrium state was described using the Langmuir model, while kinetics fitted the pseudo-first order. The maximum adsorption capacity was found to be 28.8 mg/g. Desorption efficiency increased up to 70%, and became statistically significant with the reagent concentration and pH increase, while the applied solution volume was found to be insignificant in the investigated range. Based on the results obtained, pH influence to the adsorption capacity, desorption efficiency, Fourier transform infrared (FTIR) and X-ray diffraction (XRD) analysis of loaded adsorbent, it was concluded that the outer- and inner-sphere complexation are mechanisms responsible for Se(VI) separation from water. In addition to the experiments with synthetic solutions, the adsorbent performances in drinking water samples were explored, showing the purification efficiency up to 25%, depending on the initial Se(VI) concentration and water pH. Determined sorption capacity of the cross-linked copolymer impregnated with hydrous iron oxide and its ability for regeneration, candidate this material for further research, as a promising anionic species sorbent.

Sorption of paddy soil-derived dissolved organic matter on hydrous iron oxide–vermiculite mineral phases

Geoderma ◽  
2016 ◽  
Vol 261 ◽  
pp. 169-177 ◽  
Author(s):  
Marcella Sodano ◽  
Daniel Said-Pullicino ◽  
Antonio F. Fiori ◽  
Marcella Catoni ◽  
Maria Martin ◽  
...  
Keyword(s):  
Organic Matter ◽  
Iron Oxide ◽  
Dissolved Organic Matter ◽  
Paddy Soil ◽  
Mineral Phases ◽  
Hydrous Iron Oxide

A Hybrid Sorbent Utilizing Nanoparticles of Hydrous Iron Oxide for Arsenic Removal from Drinking Water

2007 ◽  
Vol 24 (1) ◽  
pp. 104-112 ◽  
Author(s):  
P. Sylvester ◽  
P. Westerhoff ◽  
T. Möller ◽  
M. Badruzzaman ◽  
O. Boyd
Keyword(s):  
Drinking Water ◽  
Iron Oxide ◽  
Arsenic Removal ◽  
Hybrid Sorbent ◽  
Hydrous Iron Oxide

The Marcona Magnetite Deposit, Ica, South-Central Peru: A Product of Hydrous, Iron Oxide-Rich Melts?

2010 ◽  
Vol 105 (8) ◽  
pp. 1441-1456 ◽  
Author(s):  
H. Chen ◽  
A. H. Clark ◽  
T. K. Kyser
Keyword(s):  
Iron Oxide ◽  
South Central ◽  
Hydrous Iron Oxide
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