Abstract
To remediate benzene, toluene, ethylbenzene and xylene (BTEX) -contaminated groundwater, a biotreatment process including biostimulation and bioaugmentation was simulated using oxygen-releasing reactive barriers (ORRB) and water with added BTEX in a lab-scale system. The results showed that the capability for BTEX removal decreases in the order of benzene, toluene, p-xylene, ethylbenzene for both added-nitrogen and no-added-nitrogen under BTEX concentrations at 30 mg l-1. The removal efficiencies in ORRB systems were higher in the nitrogen-added condition for biostimulation compared with the no-nitrogen-added condition; moreover, an increased pattern for removal was observed during the bioaugmentation process. The oxygen content was found to be inversely proportional to the distance from the ORRB, as evidenced by observing that the average bacteria densities were two orders higher when located at 15 cm compared with 30 cm from the ORRB. The microbial community structure was similar in both cases of added-nitrogen and the no-added-nitrogen conditions.
| Original language | English |
|---|---|
| Pages (from-to) | 383-391 |
| Number of pages | 9 |
| Journal | Bioprocess and Biosystems Engineering |
| Volume | 33 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2010 Mar 1 |
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All Science Journal Classification (ASJC) codes
- Biotechnology
- Bioengineering
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Microbial communities and biodegradation in lab-scale BTEX-contaminated groundwater remediation using an oxygen-releasing reactive barrier. / Lin, Chi Wen; Chen, Li Hsuan; I, Yet Pole; Lai, Chi Yung.
In: Bioprocess and Biosystems Engineering, Vol. 33, No. 3, 01.03.2010, p. 383-391.Research output: Contribution to journal › Article
TY - JOUR
T1 - Microbial communities and biodegradation in lab-scale BTEX-contaminated groundwater remediation using an oxygen-releasing reactive barrier
AU - Lin, Chi Wen
AU - Chen, Li Hsuan
AU - I, Yet Pole
AU - Lai, Chi Yung
PY - 2010/3/1
Y1 - 2010/3/1
N2 - To remediate benzene, toluene, ethylbenzene and xylene (BTEX) -contaminated groundwater, a biotreatment process including biostimulation and bioaugmentation was simulated using oxygen-releasing reactive barriers (ORRB) and water with added BTEX in a lab-scale system. The results showed that the capability for BTEX removal decreases in the order of benzene, toluene, p-xylene, ethylbenzene for both added-nitrogen and no-added-nitrogen under BTEX concentrations at 30 mg l-1. The removal efficiencies in ORRB systems were higher in the nitrogen-added condition for biostimulation compared with the no-nitrogen-added condition; moreover, an increased pattern for removal was observed during the bioaugmentation process. The oxygen content was found to be inversely proportional to the distance from the ORRB, as evidenced by observing that the average bacteria densities were two orders higher when located at 15 cm compared with 30 cm from the ORRB. The microbial community structure was similar in both cases of added-nitrogen and the no-added-nitrogen conditions.
AB - To remediate benzene, toluene, ethylbenzene and xylene (BTEX) -contaminated groundwater, a biotreatment process including biostimulation and bioaugmentation was simulated using oxygen-releasing reactive barriers (ORRB) and water with added BTEX in a lab-scale system. The results showed that the capability for BTEX removal decreases in the order of benzene, toluene, p-xylene, ethylbenzene for both added-nitrogen and no-added-nitrogen under BTEX concentrations at 30 mg l-1. The removal efficiencies in ORRB systems were higher in the nitrogen-added condition for biostimulation compared with the no-nitrogen-added condition; moreover, an increased pattern for removal was observed during the bioaugmentation process. The oxygen content was found to be inversely proportional to the distance from the ORRB, as evidenced by observing that the average bacteria densities were two orders higher when located at 15 cm compared with 30 cm from the ORRB. The microbial community structure was similar in both cases of added-nitrogen and the no-added-nitrogen conditions.
UR - http://www.scopus.com/inward/record.url?scp=77649238883&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77649238883&partnerID=8YFLogxK
U2 - 10.1007/s00449-009-0336-7
DO - 10.1007/s00449-009-0336-7
M3 - Article
C2 - 19513757
AN - SCOPUS:77649238883
VL - 33
SP - 383
EP - 391
JO - Bioprocess and Biosystems Engineering
JF - Bioprocess and Biosystems Engineering
SN - 1615-7591
IS - 3
ER -