Efficient denitrification of liquid digestate with its indigenous microflora
文献类型：期刊论文
| 作者 | Jin, Yuxi1,2; Wang, Wen2; Li, Wentao3; Liang, Cuiyi2; Hu, Yunzi2; Zhang, Yu2; Jia, Bao3; Xin, Shanzhi4; Qi, Wei2 |
| 刊名 | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 11期号:5页码:9 |
| 关键词 | Wastewater Biogas Nitrogen removal Chemical oxygen demand Ammonia nitrogen Carbon source |
| ISSN号 | 2213-2929 |
| DOI | 10.1016/j.jece.2023.110636 |
| 通讯作者 | Wang, Wen(wangwen@ms.giec.ac.cn) ; Qi, Wei(qiwei@ms.giec.ac.cn) |
| 英文摘要 | It has been a common way to recycle digestate after biogas production as a biofertilizer. However, the huge generation of digestate especially its liquid part surpasses the market consumption quantity, which in turn hinders the sustainable operation of a biogas plant. Biotreatment of liquid digestate (LD) with microorganisms is one way to reduce chemical oxygen demand (COD) and nitrogen content. This study enriched three microflorae from environmental water, liquid and solid digestate. After community structure analysis, the microflora from LD itself exhibits superior nitrogen removal function to the other two microflorae, and its predominant microbial strains are from Aliidiomarina, followed by Parapedobacter. The microflorae can grow at pH range from 7 to 10. pH and ammonium concentration show synergistic effect on the growth of microflorae. The microflora from LD can completely realize nitrogen removal in man-made medium within 48 h, and remove 93.7 % ammonia ni-trogen (NH3-N) and 88.1 % COD from LD at optimum C/N ratio of 9. Sodium acetate and the fermented mash from grain ethanol production process are the preferable carbon sources to improve the removal of nitrogen and COD. The re-inoculation of indigenous microflora into LD can realize 2.9-10.9 % increase of NH3-N removal with or without addition of carbon sources, and 0.1-11.7 % improvement on COD removal with addition of carbon sources except glycerol. It means that the enrichment of the indigenous microflora combined with the addition of proper carbon source is a potential way to enhance the nitrogen and COD removal from LD. |
| WOS关键词 | ANOXIC/OXIC A/O PROCESS ; ANAEROBIC-DIGESTION ; SEWAGE-TREATMENT ; BIOGAS SLURRY ; WASTE-WATER ; FOOD WASTE ; REMOVAL ; NITROGEN ; NITRATE |
| 资助项目 | National Key R&D Program of China, China[2020YFC1908904] ; Youth Innovation Promotion Association, CAS, China[2021351] ; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, China[E239kf0801] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001063583400001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Key R&D Program of China, China ; Youth Innovation Promotion Association, CAS, China ; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/39723]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Wang, Wen; Qi, Wei |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 101408, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou Key Lab New & Renewable Energy Res & Dev, Guangzhou 510640, Guangdong, Peoples R China 3.PowerChina Northwest Engn Corp Ltd, Xian 710065, Shaanxi, Peoples R China 4.Jianghan Univ, Hubei Key Lab Ind Fume & Dust Pollut Control, Wuhan 430056, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Yuxi,Wang, Wen,Li, Wentao,et al. Efficient denitrification of liquid digestate with its indigenous microflora[J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,2023,11(5):9. |
| APA | Jin, Yuxi.,Wang, Wen.,Li, Wentao.,Liang, Cuiyi.,Hu, Yunzi.,...&Qi, Wei.(2023).Efficient denitrification of liquid digestate with its indigenous microflora.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,11(5),9. |
| MLA | Jin, Yuxi,et al."Efficient denitrification of liquid digestate with its indigenous microflora".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 11.5(2023):9. |
入库方式： OAI收割
来源：广州能源研究所
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