Nanoscale iron particles for complete reduction of chlorinated ethenes

2001 ◽  
Vol 191 (1-2) ◽  
pp. 97-105 ◽  
Author(s):  
Hsing-Lung Lien ◽  
Wei-xian Zhang
Keyword(s):  
Chlorinated Ethenes ◽  
Iron Particles ◽  
Complete Reduction ◽  
Nanoscale Iron Particles

RE SULTS AND DISCUSSION Reactions with nanoscale Fe particles. Reactions of CT and CF (chloroform) with nanoscale Fe particles are shown in Figure 1. 0.103 mM (15.86 mg/L) of CT was completely reduced within 20 hours. Several intermediates and final products were observed. CF emerged very quickly and peaked (61%) around 20 hours corresponding to the disappearance of CT. Complete reduction of CF was observed around 100 hours. Both dichloromethane (DCM) (51%) and methane (41%) accumulated steadily and constituted the two major final products. Reactions with commercial grade Fe particles. Reactions of CT with the Aldrich Fe particles (98%). Three major products were identified. CF peaked (53%) around 48 hours. Complete reduction of CF was observed around 100 hours. Concentration of DCM increased rapidly corresponding to the CT reduction and leveled off around 70 hours at a yield of 71%. Methane accumulated with a final yield around 25%. Small amounts of chloromethane also observed after 72 hours and gradually accumulated to about 5% of the total carbon Figure 1. Reactions of nanoscale iron particles with CT. Initial CT concentration was 0.103 mM. Metal to solution ratio was 0.25 g/20 mL

2014 ◽  
pp. 71-71
Keyword(s):  
Total Carbon ◽  
Iron Particles ◽  
Preliminary Testing ◽  
Complete Reduction ◽  
Commercial Grade ◽  
Lower Reactivity ◽  
Nanoscale Iron Particles ◽  
Final Yield

Transport of Lactate-Modified Nanoscale Iron Particles in Sand Columns

2008 ◽  
Author(s):  
Amid P. Khodadoust ◽  
Krishna R. Reddy ◽  
Srinivasa Varadhan
Keyword(s):  
Iron Particles ◽  
Nanoscale Iron Particles

The Removal of Nitrate by Nanoscale Iron Particles Produced Using the Sodium Borohydride Method

2011 ◽  
Vol 11 (2) ◽  
pp. 1684-1687
Author(s):  
Hyoung-Chan Cho ◽  
Sung Hoon Park ◽  
Ho-Geun Ahn ◽  
Minchul Chung ◽  
Byungwhan Kim ◽  
...  
Keyword(s):  
Sodium Borohydride ◽  
Iron Particles ◽  
Nanoscale Iron Particles
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