Organic contaminants removal and carbon sequestration using pig manure solid residue-derived biochar: A novel closed-loop strategy for anaerobic liquid digestate
文献类型：期刊论文
| 作者 | Liu, Ziyun1; Xie, Shihao2,3; Zhou, Hongxu4,5; Zhao, Lixin1; Yao, Zonglu1; Fan, Honggang2; Si, Buchun3; Yang, Gaixiu2 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2023-09-01 |
| 卷号 | 471页码:14 |
| 关键词 | Solid digestate-derived biochar Anaerobic liquid digestate Organic pollutants Carbon sequestration Adsorption |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2023.144601 |
| 通讯作者 | Si, Buchun(sibuchun@cau.edu.cn) ; Yang, Gaixiu(yanggx@ms.giec.ac.cn) |
| 英文摘要 | Anaerobic digestion of livestock manure as a carbon-negative practice yields bioenergy and biofertilizer. However, substantial antibiotics and benzenes contained in liquid and solid digestate hinder its large-scale applications. In this study, a novel closed-loop treatment strategy was proposed to integrate the synthesis benefits of anaerobic digestion, pyrolysis of solid digestate, and adsorption. The solid digestate-derived biochar (S-biochar) was successfully prepared by coupling pyrolysis and H2SO4 activation. The S-biochar possessed a polycyclic aromatic structure, abundant micropores (0.8-1.0 nm), various functional groups (-COOH, Aro-OH), and a higher absolute zeta potential value. These characteristics contributed to the excellent adsorption of tetracycline (51.3 mg/L), oxytetracycline (32.9 mg/L), benzene (86.0 mg/L) and toluene (74.1 mg/L), wherein pore filling, electrostatic interactions, H-bonding, surface partition, and 7c-7c conjugation mechanisms were involved. The adsorption of antibiotics was more sensitive to pH, in comparison with benzenes, and displayed a declining trend (pH>7). Under actual liquid digestate conditions, >95% adsorption of antibiotics and benzenes were reached at the dosage of 1.5 g/L, in a company with >80% of nitrogen and phosphorus. In the end, a carbon and nitrogen flow analysis was performed to elucidate that more than 80% of carbon in pig manure can be settled as biochar and biogas, and up to 94.7% of nitrogen remained in the biochar and liquid digestate. This study not only developed a S-biochar with excellent performance in removing organic pollutants from liquid digestate, but also established a closed-loop strategy as an alternative carbon sequestration approach using anaerobic digestion side-products. |
| WOS关键词 | ACTIVATED CARBON ; HYDROTHERMAL CARBONIZATION ; METHYLENE-BLUE ; ACID CATALYSTS ; M-XYLENE ; ADSORPTION ; TETRACYCLINE ; WATER ; SUPERCAPACITOR ; MECHANISMS |
| 资助项目 | Hainan Province Science and Technology Special Fund[ZDYF2021XDNY138] ; National Natural Sci- ence Foundation of China[52176214] ; National Natural Sci- ence Foundation of China[U21A20162] ; National Pig Technology Innovation Center Pilot Project[NCTIP-XD/C02] ; Youth Innovation Promotion Association CAS[2020345] ; China Post-doctoral Science Foundation[2023M733815] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001037857500001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Hainan Province Science and Technology Special Fund ; National Natural Sci- ence Foundation of China ; National Pig Technology Innovation Center Pilot Project ; Youth Innovation Promotion Association CAS ; China Post-doctoral Science Foundation |
| 源URL | [http://ir.giec.ac.cn/handle/344007/39306]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Si, Buchun; Yang, Gaixiu |
| 作者单位 | 1.CAAS, Minist Agr & Rural Affairs PR China, Inst Environm & Sustainable Dev Agr, Key Lab Low carbon Green Agr North China, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.China Agr Univ, Coll Water Resources & Civil Engn, Key Lab Agr Engn Struct & Environm, Minist Agr & Rural Affairs, Beijing 100083, Peoples R China 4.Univ Illinois, Dept Agr & Biol Engn, Urbana, IL 61801 USA 5.Univ Illinois, Illinois Sustainable Technol Ctr, Champaign, IL 61820 USA |
| 推荐引用方式 GB/T 7714 | Liu, Ziyun,Xie, Shihao,Zhou, Hongxu,et al. Organic contaminants removal and carbon sequestration using pig manure solid residue-derived biochar: A novel closed-loop strategy for anaerobic liquid digestate[J]. CHEMICAL ENGINEERING JOURNAL,2023,471:14. |
| APA | Liu, Ziyun.,Xie, Shihao.,Zhou, Hongxu.,Zhao, Lixin.,Yao, Zonglu.,...&Yang, Gaixiu.(2023).Organic contaminants removal and carbon sequestration using pig manure solid residue-derived biochar: A novel closed-loop strategy for anaerobic liquid digestate.CHEMICAL ENGINEERING JOURNAL,471,14. |
| MLA | Liu, Ziyun,et al."Organic contaminants removal and carbon sequestration using pig manure solid residue-derived biochar: A novel closed-loop strategy for anaerobic liquid digestate".CHEMICAL ENGINEERING JOURNAL 471(2023):14. |
入库方式： OAI收割
来源：广州能源研究所
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