Biochar and modified magnetic biochar enhanced anaerobic digestion of swine wastewater under ammonia stress: Performance and microbial dynamics
文献类型：期刊论文
| 作者 | Ye, Wenjie1; Li, Lei1,3; Tang, Zhouli1; Peng, Yun1; Yang, Pingjin1; Peng, Xuya1; Zhen, Feng2 |
| 刊名 | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 12期号:2页码:10 |
| 关键词 | Ammonia inhibition Anaerobic digestion Biochar Microbial communities Modified magnetic biochar |
| ISSN号 | 2213-2929 |
| DOI | 10.1016/j.jece.2024.111969 |
| 通讯作者 | Li, Lei(lileich17@cqu.edu.cn) |
| 英文摘要 | This study aimed to investigate the effectiveness and mechanism of biochar and modified magnetic biochar addition in improving the anaerobic digestion (AD) efficiency of swine wastewater under ammonia stress. Two batches of serial experiments were carried out with ammonia levels of 3000, 4500, and 6000 mg/L. The results indicated that a one-time addition of 15 g/L of both types of carbon materials could sustainably optimize the AD performance of swine wastewater at ammonia nitrogen levels of 3000 and 4500 mg/L. In the second batch of experiments, at 4500 mg/L ammonia, groups with C and FeC additions showed 6.5%, 16.2% higher cumulative methane yield and 45.5%, 60.0% greater maximum gas production rates than controls. However, under the ammonia stress condition of 6000 mg/L, the reactor exhibited a mismatch between the carbon material addition and the degree of stress. The maximum methane production rate was intensified only in the first batch, which was 71.8% and 105.1% higher in the C and FeC groups, respectively, than in the control group. The microbiological analysis revealed that biochar optimized the AD performance by enriching the abundance of fermentative bacteria and enhancing the activity of Methanosaeta. In contrast, modified magnetic biochar promoted the enrichment of acetogens and shifted the dominant methanogens from sensitive Methanosaeta to the highly ammonia-tolerant Methanosarcina, thus causing the optimization of AD performance. The findings of this study provided new insights into the mitigation of inhibition and enhancement of efficacy in the anaerobic digestion of swine wastewater. |
| WOS关键词 | METHANE PRODUCTION ; COMMUNITY |
| 资助项目 | National Natural Science Foundation of China[52170124] ; Key R & D project of Heilongjiang Province[GY2021ZB0253/GA21D009] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001167957300001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; Key R & D project of Heilongjiang Province |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41035]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Lei |
| 作者单位 | 1.Chongqing Univ, Inst Environm & Ecol, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Minist Educ, 174 Shapingba Rd, Chongqing 400045, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Chongqing Univ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Minist Educ, Chongqing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ye, Wenjie,Li, Lei,Tang, Zhouli,et al. Biochar and modified magnetic biochar enhanced anaerobic digestion of swine wastewater under ammonia stress: Performance and microbial dynamics[J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,2024,12(2):10. |
| APA | Ye, Wenjie.,Li, Lei.,Tang, Zhouli.,Peng, Yun.,Yang, Pingjin.,...&Zhen, Feng.(2024).Biochar and modified magnetic biochar enhanced anaerobic digestion of swine wastewater under ammonia stress: Performance and microbial dynamics.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,12(2),10. |
| MLA | Ye, Wenjie,et al."Biochar and modified magnetic biochar enhanced anaerobic digestion of swine wastewater under ammonia stress: Performance and microbial dynamics".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 12.2(2024):10. |
入库方式： OAI收割
来源：广州能源研究所
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