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- Title
Removal of Ethylbenzene from Contaminated Air by Zamioculcas Zamiifolia and Microorganisms Associated on Z. Zamiifolia Leaves.
- Authors
Toabaita, Maneenuch; Vangnai, Alisa; Thiravetyan, Paitip
- Abstract
This study investigated the efficiency of ethylbenzene removal in three plant species ( Zamioculcas zamiifolia, Sansevieria trifasciata, and Sansevieria kirkii). The results showed that Z. zamiifolia had the highest potential to reduce the concentration of ethylbenzene from contaminated indoor air (133.9 μmol m leaf area) when compared to S. trifasciata and S. kirkii (38.3 and 22.3 μmol m leaf area, respectively), after 24 h. Moreover, the degradation of ethylbenzene by Z. zamiifolia was studied. 1-Phenylethanol and acetophenone, the ethylbenzene metabolites, were found in all parts of treated Z. zamiifolia (leaf, stems, and roots) but not in control plants. In order to increase the efficiency of ethylbenzene removal, various bacteria from plant leaves and soil microorganisms were inoculated on plant leaves. It was found that sterile Z. zamiifolia had a potential to remove 100 % of 5 ppm ethylbenzene within 60 h. After inoculating Bacillus cereus ZQN5 on sterile Z. zamiifolia, ethylbenzene removal was enhanced in 36 h. It can be concluded that sterile plants inoculated with epiphytic bacteria/soil microorganisms had higher ethylbenzene removal efficiency. Although Pseudomonas aeruginosa itself had a higher ethylbenzene removal rate (10.67 nmolh) than B. cereus ZQN5 (7.81 nmolh), B. cereus ZQN5 associated on leaf surface had higher efficiency than with P. aeruginosa. This might be due to B. cereus ZQN5 isolated from natural Z. zamiifolia leaves, so it can survive better under natural conditions than with soil microorganisms.
- Subjects
ETHYLBENZENE; AIR pollution; MICROORGANISMS; PLANTS; EPIPHYTIC bacteria
- Publication
Water, Air & Soil Pollution, 2016, Vol 227, Issue 4, p1
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/s11270-016-2817-z