Enhanced nitrogen removal upon the addition of volatile fatty acids from activated sludge by combining calcium peroxide and low-thermal pretreatments
文献类型：期刊论文
| 作者 | Sun, Jiajun; Song, Junxue; Fang, Wei; Cao, Hongbin |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2021 |
| 卷号 | 108页码:145-151 |
| 关键词 | Waste activated sludge Anaerobic digestion Calcium peroxide Low-thermal pretreatment Volatile fatty acids |
| ISSN号 | 1001-0742 |
| 英文摘要 | This study investigated a combined low-thermal and CaO2 pretreatment to enhance the volatile fatty acid (VFA) production from waste activated sludge (WAS). The fermentative product was added to a sequencing batch reactor (SBR) as an external carbon source to enhance nitrogen removal. The results showed that the combined pretreatment improved WAS solubilization, releasing more biodegradable substrates, such as proteins and polysaccharides, from TB-EPS to LB-EPS and S-EPS. The maximum VFA production of 3529 +/- 188 mg COD/L was obtained in the combined pretreatment (0.2 g CaO2 /g VS + 70 degrees C for 60 min), which was 2.1 and 1.4-fold of that obtained from the sole low-thermal pretreatment and the control test, respectively. Consequently, when the fermentative liquid was added as an external denitrification carbon source, the effluent total nitrogen decreased to Class A of the discharge standard for pollutants in rural wastewater treatment plants in most areas of China. (c) 2021 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45937]  |
| 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.China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China 3.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.China Xiongan Grp Ecol Construct Investment Co Lt, Baoding 071700, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Jiajun,Song, Junxue,Fang, Wei,et al. Enhanced nitrogen removal upon the addition of volatile fatty acids from activated sludge by combining calcium peroxide and low-thermal pretreatments[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2021,108:145-151. |
| APA | Sun, Jiajun,Song, Junxue,Fang, Wei,&Cao, Hongbin.(2021).Enhanced nitrogen removal upon the addition of volatile fatty acids from activated sludge by combining calcium peroxide and low-thermal pretreatments.JOURNAL OF ENVIRONMENTAL SCIENCES,108,145-151. |
| MLA | Sun, Jiajun,et al."Enhanced nitrogen removal upon the addition of volatile fatty acids from activated sludge by combining calcium peroxide and low-thermal pretreatments".JOURNAL OF ENVIRONMENTAL SCIENCES 108(2021):145-151. |
入库方式： OAI收割
来源：生态环境研究中心
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