Low temperature assisting potassium ferrate treatment to enhance short-chain fatty acids production from waste activated sludge
文献类型：期刊论文
| 作者 | Yang, Wen-Jing; He, Zhang-Wei; Ren, Yong-Xiang; Jin, Hong-Yu; Wang, Ru; Tang, Cong-Cong; Zhou, Ai-Juan; Liu, Wenzong ; Wang, Aijie
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| 刊名 | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
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| 出版日期 | 2022-06 |
| 卷号 | 10期号:3页码:107821 |
| ISSN号 | 2213-2929 |
| 关键词 | GEN. NOV. ANAEROBIC FERMENTATION CO-DIGESTION PRETREATMENT MECHANISMS HYDROLYSIS |
| 英文摘要 | To recover resource from waste activated sludge (WAS) presents great roles on developing carbon-neutral operation of wastewater treatment plants. This study was conducted to evaluate SCFAs production potential from anaerobic fermentation of WAS by a novel strategy, i.e., low temperature assisting potassium ferrate (PF) treatment. Results showed that the maximal SCFAs production reached 217 mg chemical oxygen demand (COD)/ g volatile suspended solids (VSS) with the shortened fermentation time of six days, and the sum of acetic and propionic acids reached 128 mg COD/g VSS. Meanwhile, the potentially recovered carbon source, in terms of SCFAs, soluble polysaccharides and proteins, reached 437 mg COD/g VSS. The mechanism study indicated that both solubilization and hydrolysis steps were accelerated, supporting by the highest accumulations of soluble organics and ammonia nitrogen, while methanogenesis step was inhibited, supporting by the lowest methane production. In addition, it is noted that low temperature treatment facilitated organics release from extracellular polymeric substance (EPSs), with the removal efficiencies of 51.1% for polysaccharides and 44.3% for proteins, while PF facilitated cell lysis. Interestingly, compared with low temperature followed by PF treatment, PF followed by low temperature treatment performed better on facilitating disintegration of both cells and EPSs, with the highest soluble polysaccharides and proteins of 439 and 1845 mg COD/L. Also, the acid-producing bacteria was greatly enriched, with total percentage of 29.5%. The findings of this study may provide some potential solutions for SCFAs production enhancement from WAS. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47799]  |
| 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.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Biotechnol, 18 Shuangqing Rd, Beijing 100085, Peoples R China 2.Harbin Inst Technol Shenzhen, Sch Civil & Environm Engn, State Key Lab Urban Water Resource & E 3.Taiyuan Univ Technol, Coll Environm Sci & Engn, Taiyuan 030024, Peoples R China 4.Xian Univ Architecture & Technol, Key Lab Northwest Water Resource Environm & Ecol, Minist Educ, Xian 710055, Peoples R China 5.Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Shaanxi Key Lab Environm Engn, Xian 710055, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Wen-Jing,He, Zhang-Wei,Ren, Yong-Xiang,et al. Low temperature assisting potassium ferrate treatment to enhance short-chain fatty acids production from waste activated sludge[J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,2022,10(3):107821. |
| APA | Yang, Wen-Jing.,He, Zhang-Wei.,Ren, Yong-Xiang.,Jin, Hong-Yu.,Wang, Ru.,...&Wang, Aijie.(2022).Low temperature assisting potassium ferrate treatment to enhance short-chain fatty acids production from waste activated sludge.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,10(3),107821. |
| MLA | Yang, Wen-Jing,et al."Low temperature assisting potassium ferrate treatment to enhance short-chain fatty acids production from waste activated sludge".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 10.3(2022):107821. |
入库方式： OAI收割
来源：生态环境研究中心
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