Sulfur autotrophic denitrification filter and heterotrophic denitrification filter: Comparison on denitrification performance, hydrodynamic characteristics and operating cost
文献类型：期刊论文
| 作者 | Wang, Shu-Sen; Cheng, Hao-Yi ; Zhang, Hao; Su, Shi-Gang; Sun, Yi-Lu; Wang, Hong-Cheng; Han, Jing-Long; Wang, Ai-Jie; Guadie, Awoke
|
| 刊名 | ENVIRONMENTAL RESEARCH
 |
| 出版日期 | 2021-06 |
| 卷号 | 197页码:- |
| 关键词 | Sulfur autotrophic denitrification Heterotrophic denitrification Small pilot scale Hydrodynamic analysis Operating cost |
| ISSN号 | 0013-9351 |
| 英文摘要 | Sulfur autotrophic denitrification (SAD) process, as an alternative to heterotrophic denitrification (HD) filter, receives growing interest in polishing the effluent from secondary sewage treatment. Although individual studies have indicated several advantages of SAD over HD, rare study has compared these two systems under identical condition and by using real secondary effluent. In this study, two small pilot scale filters (SAD and HD) were designed with identical configuration and operated parallelly by feeding the real secondary effluent from a WWTP. The results showed SAD filter can be started up without the addition of soluble electron donor, although the time (14 days) was about 3 times longer than that of HD filter. The nitrate removal rate of SAD filter at HRT of 1.4 h was measured as 0.268 +/- 0.047 kg N/(m3 center dot d). Similar value was observed in HD filter with supplementing 90 mg/L COD. The COD concentration of effluent always kept lower than that of influent in SAD filter but not in HD filter. In addition, SAD filter could maintain a stable denitrification performance without backwash for 15 days, while decline of nitrate removal rate was observed in HD filter just 2 days after stopping the backwash. This different behavior was further confirmed as the SAD filter had a better hydraulic flow pattern. Analysis according to high-throughput 16S rRNA gene-based Illumina MiSeq sequencing clearly showed the microbial community evolution and differentiation among the samples of seed sludge, SAD and HD filters. Finally, the economic assessment was carried out, showing the operation cost of SAD filter was over 50% lower than that of HD filter. |
| WOS研究方向 | Environmental Sciences ; Public, Environmental & Occupational Health |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46157]  |
| 专题 | 生态环境研究中心_中国科学院环境生物技术重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Harbin Inst Technol Shenzhen, Sch Civil & Environm Engn, Shenzhen 518055, Peoples R China 3.Arba Minch Univ, Coll Nat Sci, Dept Biol, Arba Minch 21, Ethiopia 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Biotechnol, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Shu-Sen,Cheng, Hao-Yi,Zhang, Hao,et al. Sulfur autotrophic denitrification filter and heterotrophic denitrification filter: Comparison on denitrification performance, hydrodynamic characteristics and operating cost[J]. ENVIRONMENTAL RESEARCH,2021,197:-. |
| APA | Wang, Shu-Sen.,Cheng, Hao-Yi.,Zhang, Hao.,Su, Shi-Gang.,Sun, Yi-Lu.,...&Guadie, Awoke.(2021).Sulfur autotrophic denitrification filter and heterotrophic denitrification filter: Comparison on denitrification performance, hydrodynamic characteristics and operating cost.ENVIRONMENTAL RESEARCH,197,-. |
| MLA | Wang, Shu-Sen,et al."Sulfur autotrophic denitrification filter and heterotrophic denitrification filter: Comparison on denitrification performance, hydrodynamic characteristics and operating cost".ENVIRONMENTAL RESEARCH 197(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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。