Effectively remediating spiramycin from production wastewater through hydrolyzing its functional groups using solid superacid TiO2/SO4
文献类型：期刊论文
| 作者 | Yang, Wen; Ok, Yong Sik; Dou, Xiaomin; Zhang, Yu ; Yang, Min; Wei, Dongbin; Xu, Peng
|
| 刊名 | ENVIRONMENTAL RESEARCH
 |
| 出版日期 | 2019-08-01 |
| 卷号 | 175页码:393-401 |
| 关键词 | Solid superacids Spiramycin Antibiotic production wastewater Pretreatment Catalytic hydrolysis Antibacterial potency |
| ISSN号 | 0013-9351 |
| 英文摘要 | Breaking down the structural bonds and eliminating the functional groups are more efficient than destroying the whole molecule in antibiotic production wastewater (APW) pretreatment before further biotreatment. Two sulfated titania (TiO2/SO4) solid superacids, SSA1 and SSA2 were synthesized, characterized and used for hydrolytic pretreatment of spiramycin in APW. Spiramycin removal followed an order of SSA2 > SSA1 > TiO2 approximate to pH = 3 > control. The hydrolytic efficiencies increased at elevated temperature from 25 degrees C to 65 degrees C. The hydrolytic kinetics followed a first-order model and SSA2 performed the fastest. The performances were positively correlated with both the total acidity determined by n-butylamine titration and the strength of acid sites measured by NH3-temperature-programmed desorption (TPD). The residual solution for SSA2 presented the least antibacterial potency and anaerobic inhibition among all treatments. The hydrolyzed product was identified as the m/z 699.4321 fragment using UPLC-Q/TOF-MS, which was formed after losing a functional mycarose moiety from the parent molecular. The solid superacids were effective in selectively eliminating 433 mg/L of spiramycin and the antibacterial potencies of the spiramycin production wastewater, which contained very high concentrations of COD (33,000 mg/L). This hydrolytic method avoids using and handling hazardous and corrosive mineral acids on site. It is attractive as a selective catalytic pretreatment method to cleave antibiotics' functional groups and to reduce its inhibitory effects before sequential biotreatments. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/42640]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Korea Univ, Div Environm Sci & Ecol Engn, Seoul 02841, South Korea 2.Korea Univ, O Jeong Ecoresilience Inst OJERI, Korea Biochar Res Ctr, Seoul 02841, South Korea 3.Beijing Forestry Univ, Coll Environm Sci & Engn, Beijing Key Lab Source Control Technol Water Poll, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Wen,Ok, Yong Sik,Dou, Xiaomin,et al. Effectively remediating spiramycin from production wastewater through hydrolyzing its functional groups using solid superacid TiO2/SO4[J]. ENVIRONMENTAL RESEARCH,2019,175:393-401. |
| APA | Yang, Wen.,Ok, Yong Sik.,Dou, Xiaomin.,Zhang, Yu.,Yang, Min.,...&Xu, Peng.(2019).Effectively remediating spiramycin from production wastewater through hydrolyzing its functional groups using solid superacid TiO2/SO4.ENVIRONMENTAL RESEARCH,175,393-401. |
| MLA | Yang, Wen,et al."Effectively remediating spiramycin from production wastewater through hydrolyzing its functional groups using solid superacid TiO2/SO4".ENVIRONMENTAL RESEARCH 175(2019):393-401. |
入库方式： OAI收割
来源：生态环境研究中心
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