In situ removal of arsenic from groundwater by using permeable reactive barriers of organic matter/limestone/zero-valent iron mixtures

2010 ◽  
Vol 32 (4) ◽  
pp. 373-378 ◽  
Author(s):  
O. Gibert ◽  
J. de Pablo ◽  
J.-L. Cortina ◽  
C. Ayora
Keyword(s):  
Organic Matter ◽  
Permeable Reactive Barriers ◽  
Zero Valent Iron ◽  
Reactive Barriers ◽  
Removal Of Arsenic

Evaluation of zeolite-supported microscale zero-valent iron as a potential adsorbent for Cd2+ and Pb2+ removal in permeable reactive barriers

2017 ◽  
Vol 24 (15) ◽  
pp. 13837-13844 ◽  
Author(s):  
Xiangke Kong ◽  
Guoxin Huang ◽  
Zhantao Han ◽  
Youming Xu ◽  
Ming Zhu ◽  
...  
Keyword(s):  
Permeable Reactive Barriers ◽  
Zero Valent Iron ◽  
Reactive Barriers

Biogeochemical Dynamics in Zero-Valent Iron Columns:  Implications for Permeable Reactive Barriers

1999 ◽  
Vol 33 (13) ◽  
pp. 2170-2177 ◽  
Author(s):  
B. Gu ◽  
T. J. Phelps ◽  
L. Liang ◽  
M. J. Dickey ◽  
Y. Roh ◽  
...  
Keyword(s):  
Permeable Reactive Barriers ◽  
Zero Valent Iron ◽  
Reactive Barriers

FeS-coated sand for removal of arsenic(III) under anaerobic conditions in permeable reactive barriers

2011 ◽  
Vol 45 (2) ◽  
pp. 593-604 ◽  
Author(s):  
Young-Soo Han ◽  
Tanya J. Gallegos ◽  
Avery H. Demond ◽  
Kim F. Hayes
Keyword(s):  
Permeable Reactive Barriers ◽  
Anaerobic Conditions ◽  
Reactive Barriers ◽  
Coated Sand ◽  
Removal Of Arsenic

In‐Situ Treatment of Landfill Leachate with Permeable Reactive Barriers

2016 ◽  
Author(s):  
Robert Boyes
Keyword(s):  
Landfill Leachate ◽  
Health Problems ◽  
Permeable Reactive Barriers ◽  
Permeable Reactive Barrier ◽  
Hazardous Wastes ◽  
Food Wastes ◽  
Reactive Barrier ◽  
Viable Solution ◽  
Reactive Barriers

As precipitation percolates through a landfill, it comes in contact with decomposing waste ranging from food wastes to factory wastes even to hazardous wastes. That water can then leach elements from the wastes and become contaminated forming what is typically called landfill leachate. Leachate has the potential to cause many health problems if allowed to reach the groundwater and every effort is made to slow and minimize its effect. The most common way of dealing with leachate is to pump it out of the base of the landfill with a series of pipes and pumps, but what about the treatment of the leachate in‐situ through the use of a permeable reactive barrier? Is it a viable solution?

scholarly journals Hydraulic performance of zero-valent iron and nano-sized zero-valent iron permeable reactive barriers – laboratory test

2014 ◽  
Vol 46 (1) ◽  
pp. 33-42 ◽  
Author(s):  
Joanna Fronczyk ◽  
Katarzyna Pawluk
Keyword(s):  
Heavy Metals ◽  
Hydraulic Conductivity ◽  
Laboratory Test ◽  
Hydraulic Performance ◽  
Chloride Ions ◽  
Permeable Reactive Barriers ◽  
Zero Valent Iron ◽  
Successful Implementation ◽  
Column Tests ◽  
Reactive Barriers

Abstract Hydraulic performance of zero-valent iron and nano-sized zero-valent iron permeable reactive barriers - laboratory test. The hydraulic conductivity of zero-valent iron treatment zone of permeable reactive barriers (PRBs) may be decreased by reducing the porosity caused by gas production and solids precipitation. The study was undertaken in order to evaluate the influence of chloride and heavy metals on the hydraulic conductivity of ZVI and nZVI using hydraulic conductivity tests as well as continuous column tests. Results show that the lead retention in the solution had no impact for hydraulic conductivity in ZVI sample, on the other hand the calculated hydraulic conductivity losses in nZVI sample (from 4.10·10-5 to 2.30·10-5 m·s-1) were observed. Results also indicate that liquids containing the mixture of heavy metals may cause significant decrease in hydraulic conductivity (from 1.03·10-4 to 1.51·10-6 m·s-1). During the column tests, several number of clogging of the reactive material caused by iron hydroxides precipitation was observed over the course of injection of heavy metals solution. In contrast, the hydraulic conductivity of ZVI and nZVI is unaffected when they are permeated with chloride ions solution (k = 1.03·10-4 m·s-1). Finally, the results indicate the need to take account of changes in the hydraulic conductivity of reactive materials for successful implementation of PRBs technology.

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