scholarly journals Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

10.3791/57618 ◽  
2018 ◽  
Author(s):  
Eduard Rott ◽  
Tobias Reinhardt ◽  
Stephan Wasielewski ◽  
Ellen Raith-Bausch ◽  
Ralf Minke
Keyword(s):  
Ferric Hydroxide ◽  
Determination Method ◽  
Phosphorus Determination ◽  
Granular Ferric Hydroxide

NOM removal by adsorption onto granular ferric hydroxide: Equilibrium, kinetics, filter and regeneration studies

2008 ◽  
Vol 42 (1-2) ◽  
pp. 238-248 ◽  
Author(s):  
Arne Genz ◽  
Benno Baumgarten ◽  
Mandy Goernitz ◽  
Martin Jekel
Keyword(s):  
Ferric Hydroxide ◽  
Granular Ferric Hydroxide

Investigating reductive modification of granular ferric hydroxide for enhanced chromate removal

2019 ◽  
Vol 13 ◽  
pp. 257-263 ◽  
Author(s):  
Carsten Bahr ◽  
Lukas Massa ◽  
Helge Stanjek ◽  
Martin Jekel ◽  
Aki Sebastian Ruhl
Keyword(s):  
Ferric Hydroxide ◽  
Granular Ferric Hydroxide

scholarly journals Batch studies of phosphonate adsorption on granular ferric hydroxides

2020 ◽  
Vol 81 (1) ◽  
pp. 10-20 ◽  
Author(s):  
T. Reinhardt ◽  
M. Gómez Elordi ◽  
R. Minke ◽  
H. Schönberger ◽  
E. Rott
Keyword(s):  
Contact Time ◽  
Room Temperature ◽  
Adsorption Process ◽  
Ferric Hydroxide ◽  
Batch Experiments ◽  
Batch Studies ◽  
Influence Of Temperature ◽  
Ph Values ◽  
Adsorption Desorption ◽  
Granular Ferric Hydroxide

Abstract Phosphonates are widely used in various industries. It is desirable to remove them before discharging phosphonate-containing wastewater. This study describes a large number of batch experiments with adsorbents that are likely suitable for the removal of phosphonates. For this, adsorption isotherms for four different granular ferric hydroxide (GFH) adsorbents were determined at different pH values in order to identify the best performing material. Additionally, the influence of temperature was studied for this GFH. A maximum loading for nitrilotrimethylphosphonic acid (NTMP) was found to be ∼12 mg P/g with an initial concentration of 1 mg/L NTMP-P and a contact time of 7 days at room temperature. Then, the adsorption of six different phosphonates was investigated as a function of pH. It was shown that GFH could be used to remove all investigated phosphonates from water and, with an increasing pH, the adsorption capacity decreased for all six phosphonates. Finally, five adsorption–desorption cycles were carried out to check the suitability of the material for multiple re-use. Even after five cycles, the adsorption process still performed well.

Arsenic removal - experience with the GEH® process in Germany

2002 ◽  
Vol 2 (2) ◽  
pp. 275-280 ◽  
Author(s):  
W. Driehaus
Keyword(s):  
Drinking Water ◽  
Arsenic Removal ◽  
Ferric Hydroxide ◽  
Drinking Water Treatment ◽  
Treatment Results ◽  
Design Data ◽  
Drinking Water Standard ◽  
Water Treatment Plants ◽  
Trade Name ◽  
Granular Ferric Hydroxide

The reduced German drinking water standard for arsenic of 10 μg/L initiated the development of a new adsorbent, the granular ferric hydroxide. It was introduced into the market in 1997 under the trade name GEH®. 16 drinking water treatment plants for arsenic removal are now using this technique in Germany. The article gives a brief overview over this applications, the design data and the treatment results. This technique requires only small contact times between 3 and 10 minutes, whereas the treatment capacities are up to 250,000 bed volumes. The average treatment costs, including media supply, media exchange service and disposal, are 0.04 EURO per m3 treated water.

Real-time monitoring of arsenic filtration by granular ferric hydroxide

2010 ◽  
Vol 68 (4-5) ◽  
pp. 821-824 ◽  
Author(s):  
David E.B. Fleming ◽  
Isadel S. Eddy ◽  
Mihai R. Gherase ◽  
Meaghan K. Gibbons ◽  
Graham A. Gagnon
Keyword(s):  
Real Time ◽  
Ferric Hydroxide ◽  
Real Time Monitoring ◽  
Granular Ferric Hydroxide

Defluoridation from aqueous solutions by granular ferric hydroxide (GFH)

2009 ◽  
Vol 43 (2) ◽  
pp. 490-498 ◽  
Author(s):  
Eva Kumar ◽  
Amit Bhatnagar ◽  
Minkyu Ji ◽  
Woosik Jung ◽  
Sang-Hun Lee ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Ferric Hydroxide ◽  
Granular Ferric Hydroxide

Perchlorate removal from aqueous solutions by granular ferric hydroxide (GFH)

2010 ◽  
Vol 159 (1-3) ◽  
pp. 84-90 ◽  
Author(s):  
Eva Kumar ◽  
Amit Bhatnagar ◽  
Jeong-A Choi ◽  
Umesh Kumar ◽  
Booki Min ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Ferric Hydroxide ◽  
Perchlorate Removal ◽  
Granular Ferric Hydroxide
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