Remediation of persistent organic pollutant-contaminated soil using biosurfactant-enhanced electrokinetics coupled with a zero-valent iron/activated carbon permeable reactive barrier

2017 ◽  
Vol 24 (36) ◽  
pp. 28142-28151 ◽  
Author(s):  
Yuchao Sun ◽  
Ke Gao ◽  
Yun Zhang ◽  
Hua Zou
Keyword(s):  
Activated Carbon ◽  
Contaminated Soil ◽  
Organic Pollutant ◽  
Persistent Organic Pollutant ◽  
Zero Valent Iron ◽  
Permeable Reactive Barrier ◽  
Reactive Barrier

scholarly journals Impact of activated carbon on the catabolism of 14C-phenanthrene in soil

2015 ◽  
Vol 17 (6) ◽  
pp. 1173-1181 ◽  
Author(s):  
Ayodeji O. Oyelami ◽  
Uchenna Ogbonnaya ◽  
Chitom Muotoh ◽  
Kirk T. Semple
Keyword(s):  
Activated Carbon ◽  
Contaminated Soil ◽  
Organic Pollutant ◽  
Persistent Organic Pollutant ◽  
Remediation Strategy ◽  
Soil P ◽  
Carbon Amendment ◽  
Soils And Sediments ◽  
Activated Carbon Amendment

Activated carbon amendment to contaminated soil has been proposed as an alternative remediation strategy to the management of persistent organic pollutant in soils and sediments.

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

2018 ◽  
Vol 777 ◽  
pp. 256-261 ◽  
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%.

Commercial Activated Carbon Modified with Sulfuric Acid: A Potential Permeable Reactive Barrier Material for In Situ Remediation of Cr(VI) from Groundwater

2011 ◽  
Vol 343-344 ◽  
pp. 172-176
Author(s):  
Jun Ping Liu ◽  
Huan Zhen Zhang ◽  
Xiao Meng Liu
Keyword(s):  
Activated Carbon ◽  
Sulfuric Acid ◽  
Adsorption Capacity ◽  
Permeable Reactive Barrier ◽  
Contaminated Groundwater ◽  
Batch Studies ◽  
Reactive Barrier ◽  
Chemically Modified ◽  
Synthetic Groundwater

In this study, removal of Cr(Ⅵ) from synthetic groundwater by adsorption onto commercial activated carbon (CAC) made up of coconut shell is investigated in batch studies. Surface modification of CAC with sulfuric acid is also conducted to evaluate its removal performance. It is evident that CAC chemically modified with sulfuric acid (sulfuric-treated CAC) demonstrates higher Cr(Ⅵ) removal efficiency than non-treated CAC in dealing with contaminated groundwater with the pH is about 7.0, suggesting that sulfuric-treated CAC is suitable for the in-situ remediation of Cr(Ⅵ) contaminated groundwater. Adsorption of Cr(Ⅵ) is strongly affected by pH, the granular sulfuric-treated CAC exhibits the highest Cr(Ⅵ) adsorption capacity at pH 1.5 and the maximum Cr(Ⅵ) adsorption capacity of which estimated with the Langmuir model was 8.24mg/g.

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
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