Remediation of PCE contaminated clay soil by coupling electrokinetics with zero-valent iron permeable reactive barrier

2016 ◽  
Vol 75 (8) ◽  
Author(s):  
Daryoush Yousefi Kebria ◽  
Maryam Taghizadeh ◽  
José Villaseñor Camacho ◽  
Nima Latifi
Keyword(s):  
Clay Soil ◽  
Zero Valent Iron ◽  
Permeable Reactive Barrier ◽  
Reactive Barrier

Permeable reactive barrier of coarse sand-supported zero valent iron for the removal of 2,4-dichlorophenol in groundwater

2015 ◽  
Vol 22 (21) ◽  
pp. 16889-16896 ◽  
Author(s):  
Weichun Gao ◽  
Yongxiang Zhang ◽  
Xiaoye Zhang ◽  
Zhilong Duan ◽  
Youhao Wang ◽  
...  
Keyword(s):  
Coarse Sand ◽  
Zero Valent Iron ◽  
Permeable Reactive Barrier ◽  
Reactive Barrier

scholarly journals Remediation of 4-Nitroaniline by Plaster-Based Permeable Reactive Barriers Containing Zero Valent Iron (ZVI): Precast Plaster Retaining Wall Blocks for Environmental Applications

2021 ◽  
Author(s):  
saliha boudia ◽  
farida fernane ◽  
patrick j sharrock ◽  
marina m.l. fiallo
Keyword(s):  
Retaining Wall ◽  
Retaining Walls ◽  
Permeable Reactive Barriers ◽  
Zero Valent Iron ◽  
Permeable Reactive Barrier ◽  
Chemical Degradation ◽  
Metal Particles ◽  
Environmental Applications ◽  
Reactive Barrier ◽  
Vis Spectroscopy

Abstract Permeable reactive barrier (PRB) containing zero valent iron (ZVI), plaster and additives to make a porous composite structure was tested to remove an organic nitro compound as model pollutant. An aqueous solution of 4-nitroaniline (PNA) was passed through a porous plaster composite column and chemical degradation quantified by UV-Vis spectroscopy. PNA was reduced to p-phenylenediamine and the rate of the reduction was strongly related to ZVI amount, pollutant volume, and the contact rate with metal particles. The parameters could be controlled by reactor design and operation. The columns were made to test the materials for making precast plaster blocks containing ZVI. The results showed that such porous plaster blocks could be efficient as retaining walls for environmental applications.

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