Enhanced degradation of phenol by a novel biomaterial through the immobilization of bacteria on cationic straw
| Autor: | Jing Liang, Shuxin Gong, Yuanhan Sun, Jiejing Zhang, Jianfeng Zhang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Water Science and Technology, Vol 84, Iss 12, Pp 3791-3798 (2021) |
| Druh dokumentu: | article |
| ISSN: | 0273-1223 1996-9732 |
| DOI: | 10.2166/wst.2021.498 |
| Popis: | As phenol possesses a threat to human health, there is a great demand to search for fast and efficient methods for it to be discharged. In this study, a novel biomaterial was prepared by the immobilization of bacteria on a cationic straw carrier, and the remediation ability of the biomaterial on phenol-containing wastewater was investigated. The free bacteria could degrade 1,000 mg/L phenol within 240 h, while the prepared biomaterial was 192 h, shortening by 48 h that of free bacteria. In addition, the degradation tolerance of biomaterial increased from 1,000 mg/L to 1,200 mg/L than the free bacteria, within 216 h, which shortened by 24 h the degradation time of 1,000 mg/L phenol by free bacteria (240 h). Further, under different pH conditions, the degradation efficiency of phenol by prepared biomaterial was much higher than that of free bacteria. Especially for the lower pH 5, the degradation efficiency of biomaterial was nearly twice that of the free bacteria. This investigation demonstrates that this biomaterial has great potential in the field of remediation of organic pollution. HIGHLIGHTS A novel biomaterial was prepared by the fixation of bacteria on cationic straw.; The biomaterial can shorten the time and increase phenol concentration for degradation, compared to the free bacteria.; At a lower pH, the degradation efficiency of biomaterial is nearly twice that of the free bacteria.; |
| Databáze: | Directory of Open Access Journals |
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