Integrated Nanozero Valent Iron and Biosurfactant-Aided Remediation of PCB-Contaminated Soil
Polychlorobiphenyls (PCBs) have been identified as environmental hazards for years. Due to historical issues, a considerable amount of PCBs was released deep underground in Canada. In this research, a nanoscale zero valent iron- (nZVI-) aided dechlorination followed by biosurfactant enhanced soil wa...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Applied and Environmental Soil Science |
| Online Access: | http://dx.doi.org/10.1155/2016/5390808 |
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| author | He Zhang Baiyu Zhang Bo Liu |
| author_facet | He Zhang Baiyu Zhang Bo Liu |
| author_sort | He Zhang |
| collection | DOAJ |
| description | Polychlorobiphenyls (PCBs) have been identified as environmental hazards for years. Due to historical issues, a considerable amount of PCBs was released deep underground in Canada. In this research, a nanoscale zero valent iron- (nZVI-) aided dechlorination followed by biosurfactant enhanced soil washing method was developed to remove PCBs from soil. During nZVI-aided dechlorination, the effects of nZVI dosage, initial pH level, and temperature were evaluated, respectively. Five levels of nZVI dosage and two levels of initial pH were experimented to evaluate the PCB dechlorination rate. Additionally, the temperature changes could positively influence the dechlorination process. In soil washing, the presence of nanoiron particles played a key role in PCB removal. The crude biosurfactant was produced using a bacterial stain isolated from the Atlantic Ocean and was applied for soil washing. The study has led to a promising technology for PCB-contaminated soil remediation. |
| format | Article |
| id | doaj-art-a9d08373c80645c88e3e8b1b19544fe1 |
| institution | Kabale University |
| issn | 1687-7667 1687-7675 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied and Environmental Soil Science |
| spelling | doaj-art-a9d08373c80645c88e3e8b1b19544fe12025-02-03T01:00:49ZengWileyApplied and Environmental Soil Science1687-76671687-76752016-01-01201610.1155/2016/53908085390808Integrated Nanozero Valent Iron and Biosurfactant-Aided Remediation of PCB-Contaminated SoilHe Zhang0Baiyu Zhang1Bo Liu2Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University, St. John’s, NL, A1B 3X5, CanadaNorthern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University, St. John’s, NL, A1B 3X5, CanadaNorthern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University, St. John’s, NL, A1B 3X5, CanadaPolychlorobiphenyls (PCBs) have been identified as environmental hazards for years. Due to historical issues, a considerable amount of PCBs was released deep underground in Canada. In this research, a nanoscale zero valent iron- (nZVI-) aided dechlorination followed by biosurfactant enhanced soil washing method was developed to remove PCBs from soil. During nZVI-aided dechlorination, the effects of nZVI dosage, initial pH level, and temperature were evaluated, respectively. Five levels of nZVI dosage and two levels of initial pH were experimented to evaluate the PCB dechlorination rate. Additionally, the temperature changes could positively influence the dechlorination process. In soil washing, the presence of nanoiron particles played a key role in PCB removal. The crude biosurfactant was produced using a bacterial stain isolated from the Atlantic Ocean and was applied for soil washing. The study has led to a promising technology for PCB-contaminated soil remediation.http://dx.doi.org/10.1155/2016/5390808 |
| spellingShingle | He Zhang Baiyu Zhang Bo Liu Integrated Nanozero Valent Iron and Biosurfactant-Aided Remediation of PCB-Contaminated Soil Applied and Environmental Soil Science |
| title | Integrated Nanozero Valent Iron and Biosurfactant-Aided Remediation of PCB-Contaminated Soil |
| title_full | Integrated Nanozero Valent Iron and Biosurfactant-Aided Remediation of PCB-Contaminated Soil |
| title_fullStr | Integrated Nanozero Valent Iron and Biosurfactant-Aided Remediation of PCB-Contaminated Soil |
| title_full_unstemmed | Integrated Nanozero Valent Iron and Biosurfactant-Aided Remediation of PCB-Contaminated Soil |
| title_short | Integrated Nanozero Valent Iron and Biosurfactant-Aided Remediation of PCB-Contaminated Soil |
| title_sort | integrated nanozero valent iron and biosurfactant aided remediation of pcb contaminated soil |
| url | http://dx.doi.org/10.1155/2016/5390808 |
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