Enhancing anaerobic degradation of oily sludge using subcritical hydrothermal pretreatment
文献类型：期刊论文
| 作者 | Su, H.1,2; Lin, J.3 |
| 刊名 | JOURNAL OF APPLIED MICROBIOLOGY
 |
| 出版日期 | 2020-11-06 |
| 页码 | 10 |
| ISSN号 | 1364-5072 |
| 关键词 | activated sludge anaerobic degradation oily sludge subcritical hydrothermal pretreatment |
| DOI | 10.1111/jam.14748 |
| 通讯作者 | Su, H.(suhaifeng@cigit.ac.cn) ; Lin, J.(linjiafu@cdu.edu.cn) |
| 英文摘要 | Aims Oily sludge is a kind of mixture that is extremely harmful to the environment. Anaerobic digestion (AD) is a commonly used method for biodegrading oily sludge. However, the AD treatment cycle is usually long and inefficient. Here, we developed an approach to improve the degradation rate of oily sludge by integrating subcritical hydrothermal pretreatment (SHP) and AD. Methods and Results First, using SHP, the hydrocarbon compounds with long carbon chains that make up oil sludge were decomposed into hydrocarbons with short carbon chains, which are conducive to microbial decomposition and transformation. Then, AD was performed using a variety of temperature and solid-liquid ratio parameters. The results showed that the degradation ratio of oily sludge was higher when SHP was combined with AD than when no pre-treatment was performed. Optimal degradation was reached by performing SHP to obtain CHS8, then performing AD at 30 degrees C using a 1:5 solid-liquid ratio. Under these conditions, maximum degradation ratios of 69 center dot 00% of TOC, 59 center dot 02% of COD, 44 center dot 68% of ammonia and 54 center dot 24% of oil content were reached. Conclusions In conclusion, after SHP with 8% dilute sulphuric acid, most of the macromolecular hydrocarbons in the oily sludge were converted into smaller molecules, which facilitated subsequent microbial decomposition. The results showed that this combination of SHP and AD processes promotes more efficient degradation than a conventional single AD process without any hydrothermal pretreatment. Significance and Impact of the Study Our experiments provide technical support for enhancing the rapid degradation of oily sludge. |
| 资助项目 | Open Project Program of the State Key Laboratory of Petroleum Pollution Control[PPC2017004] ; CNPC Research Institute of Safety and Environmental Technology ; National Natural Science Foundation ; frontier research program of Chongqing, Chongqing Science Committee[cstc2017jcyjA02138] ; Key laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Natural and Resources[SXDJ2019] |
| WOS研究方向 | Biotechnology & Applied Microbiology ; Microbiology |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000587024600001 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/12261]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Su, H.; Lin, J. |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China 2.State Key Lab Petr Pollut Control, Beijing 102206, Peoples R China 3.Chengdu Univ, Antibiot Res & Reevaluat Key Lab Sichuan Prov, Sichuan Ind Inst Antibiot, Chengdu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, H.,Lin, J.. Enhancing anaerobic degradation of oily sludge using subcritical hydrothermal pretreatment[J]. JOURNAL OF APPLIED MICROBIOLOGY,2020:10. |
| APA | Su, H.,&Lin, J..(2020).Enhancing anaerobic degradation of oily sludge using subcritical hydrothermal pretreatment.JOURNAL OF APPLIED MICROBIOLOGY,10. |
| MLA | Su, H.,et al."Enhancing anaerobic degradation of oily sludge using subcritical hydrothermal pretreatment".JOURNAL OF APPLIED MICROBIOLOGY (2020):10. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。