Possibility of using granular iron slag by-product as permeable reactive barrier for remediation of simulated water contaminated with lead ions

This study was aimed to investigate the possibility of using iron slag by product as reactive materials in the porous reactive barriers technologies to achieve the principles of sustainability. Results reveal that the maximum adsorption capacity of iron slag (=2.309 mg/g) can be calculated by Langmuir model because it is more representative for adsorption data. This means that the chem-sorption is predominant mechanism for sorption of lead ions where the dissolution of calcium oxide by hydrolysis and ion exchange can enhance the removal of lead ions by iron oxide surface sites. In addition, the results of continuous tests conducted for 140 hours certified that the longevities of the barriers is proportional straightforwardly with the bed depth but it changed inversely with initial concentration of metal ions and flowrate. Hydraulic conductivity was recognized to remain approximately constant and this certify that there is no precipitation occurred through the removal process. The COMSOL software was proved its ability in the description of the measured breakthrough curves with high agreement.

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Evaluation of permeable reactive barrier (PRB) integrity using electrical imaging methods

Geophysics ◽

10.1190/1.1581043 ◽

2003 ◽

Vol 68 (3) ◽

pp. 911-921 ◽

Cited By ~ 33

Author(s):

Lee Slater ◽

Andrew Binley

Keyword(s):

Geophysical Methods ◽

Permeable Reactive Barrier ◽

Electrical Measurements ◽

Cross Sectional ◽

Imaging Methods ◽

Reactive Barrier ◽

Electrical Imaging ◽

Granular Iron

The permeable reactive barrier (PRB) is a promising in‐situ technology for treatment of hydrocarbon‐contaminated groundwater. A PRB is typically composed of granular iron which degrades chlorinated organics into potentially nontoxic dehalogenated organic compounds and inorganic chloride. Geophysical methods may assist assessment of in‐situ barrier integrity and evaluation of long‐term barrier performance. The highly conductive granular iron makes the PRB an excellent target for conductivity imaging methods. In addition, electrochemical storage of charge at the iron–solution interface generates an impedance that decreases with frequency. The PRB is thus a potential induced polarization (IP) target. Surface and cross‐borehole electrical imaging (conductivity and IP) was conducted at a PRB installed at the U.S. Department of Energy's Kansas City plant. Poor signal strength (25% of measurements exceeding 8% reciprocal error) and insensitivity at depth, which results from current channeling in the highly conductive iron, limited surface imaging. Crosshole 2D and 3D electrical measurements were highly effective at defining an accurate, approximately 0.3‐m resolution, cross‐sectional image of the barrier in‐situ. Both the conductivity and IP images reveal the barrier geometry. Crosshole images obtained for seven panels along the barrier suggest variability in iron emplacement along the installation. On five panels the PRB structure is imaged as a conductive feature exceeding 1 S/m. However, on two panels the conductivity in the assumed vicinity of the PRB is less than 1 S/m. The images also suggest variability in the integrity of the contact between the PRB and bedrock. This noninvasive, in‐situ evaluation of barrier geometry using conductivity/IP has broad implications for the long‐term monitoring of PRB performance as a method of hydrocarbon removal.

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Waterworks sludge-filter sand permeable reactive barrier for removal of toxic lead ions from contaminated groundwater

Journal of Water Process Engineering ◽

10.1016/j.jwpe.2019.101112 ◽

2020 ◽

Vol 33 ◽

pp. 101112 ◽

Cited By ~ 55

Author(s):

Ayad A.H. Faisal ◽

Saad F.A. Al-Wakel ◽

Hussein A. Assi ◽

Laith A. Naji ◽

Mu. Naushad

Keyword(s):

Permeable Reactive Barrier ◽

Lead Ions ◽

Contaminated Groundwater ◽

Reactive Barrier ◽

Waterworks Sludge

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Evaluation of the Efficiency of a Clay Permeable Reactive Barrier for the Remediation of Groundwater Contaminated with 137Cs

Procedia Earth and Planetary Science ◽

10.1016/j.proeps.2016.12.112 ◽

2017 ◽

Vol 17 ◽

pp. 444-447 ◽

Cited By ~ 1

Author(s):

Elena Torres ◽

Paloma Gómez ◽

Antonio Garralón ◽

Belén Buil ◽

María J. Turrero ◽

...

Keyword(s):

Permeable Reactive Barrier ◽

Reactive Barrier

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Bioremediation using permeable reactive barrier and immobilization technology for MTBE and BTEX contaminated groundwater

Journal of Bioscience and Bioengineering ◽

10.1016/j.jbiosc.2009.08.271 ◽

2009 ◽

Vol 108 ◽

pp. S92-S93 ◽

Cited By ~ 1

Author(s):

Chi-Wen Lin

Keyword(s):

Permeable Reactive Barrier ◽

Contaminated Groundwater ◽

Reactive Barrier ◽

Immobilization Technology

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Hydraulic performance of a permeable reactive barrier at Casey Station, Antarctica

Chemosphere ◽

10.1016/j.chemosphere.2014.06.091 ◽

2014 ◽

Vol 117 ◽

pp. 223-231 ◽

Cited By ~ 22

Author(s):

K.A. Mumford ◽

J.L. Rayner ◽

I. Snape ◽

G.W. Stevens

Keyword(s):

Hydraulic Performance ◽

Permeable Reactive Barrier ◽

Reactive Barrier ◽

Casey Station

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Removal of ammoniacal nitrogen from contaminated groundwater using waste foundry sand in the permeable reactive barrier

10.5004/dwt.2021.27436 ◽

2021 ◽

Vol 230 ◽

pp. 227-239

Author(s):

Ayad A.H. Faisal ◽

Laith A. Naji ◽

Anis Ahmad Chaudhary ◽

B. Saleh

Keyword(s):

Permeable Reactive Barrier ◽

Contaminated Groundwater ◽

Ammoniacal Nitrogen ◽

Foundry Sand ◽

Reactive Barrier ◽

Waste Foundry Sand

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Optimizing Operational Parameters of Electrokinetic Technique Assisted by a Permeable Reactive Barrier for Remediation of Nitrate-Contaminated Soil

Iranian Journal of Science and Technology Transactions of Civil Engineering ◽

10.1007/s40996-021-00730-8 ◽

2021 ◽

Author(s):

Seyed Hossein Mousavi Alyani ◽

Nasser Talebbeydokhti ◽

Faramarz Doulati Ardejani ◽

Ayoub Karimi Jashni ◽

Reza Rakhshandehroo

Keyword(s):

Contaminated Soil ◽

Permeable Reactive Barrier ◽

Operational Parameters ◽

Reactive Barrier

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Lead (II) Removal from Contaminated Soils by Electrokinetic Remediation Coupled with Modified Eggshell Waste

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.777.256 ◽

2018 ◽

Vol 777 ◽

pp. 256-261 ◽

Cited By ~ 2

Author(s):

André Ribeiro ◽

André Mota ◽

Margarida Soares ◽

Carlos Castro ◽

Jorge Araújo ◽

...

Keyword(s):

Contaminated Soil ◽

Contaminated Soils ◽

Removal Rate ◽

Electrokinetic Remediation ◽

Permeable Reactive Barrier ◽

Inorganic Contaminants ◽

Reactive Barrier ◽

Eggshell Waste ◽

Inorganic Fraction ◽

Maximum Removal

Electrokinetic remediation deserves particular attention in soil treatment due to its peculiar advantages, including the capability of treating fine and low permeability materials, and achieving consolidation, dewatering and removal of salts and inorganic contaminants like heavy metals in a single stage. In this study, the remediation of artificially lead (II) contaminated soil by electrokinetic process, coupled with Eggshell Inorganic Fraction Powder (EGGIF) permeable reactive barrier (PRB), was investigated. An electric field of 2 V cm-1was applied and was used an EGGIF/soil ratio of 30 g kg-1 of contaminated soil for the preparation of the permeable reactive barrier (PRB) in each test. It was obtained high removal rates of lead in both experiments, especially near the cathode. In the normalized distance to cathode of 0.2 it was achieved a maximum removal rate of lead (II) of 68, 78 and 83% in initial lead (II) concentration of 500 mg-1, 200 mg-1 and 100 mg-1, respectively. EGGIF (Eggshell Inorganic Fraction) proved that can be used as permeable reactive barrier (PRB) since in all the performed tests were achieved adsorptions yields higher than 90%.

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