Water-heat balance characteristics of the sewage sludge bio-drying process in a full-scale bio-drying plant with circulated air
文献类型：期刊论文
| 作者 | Yu, Bao1,2; Chen, Tongbin1,2; Zheng, Guodi1,2; Yang, Junxing1; Huang, Xue2,3; Fu, Lili2,3; Cai, Lu4 |
| 刊名 | WASTE MANAGEMENT
 |
| 出版日期 | 2022-03-15 |
| 卷号 | 141页码:220-230 |
| 关键词 | Bio-drying Ventilation Air circulation Balance analysis Energy input |
| ISSN号 | 0956-053X |
| DOI | 10.1016/j.wasman.2022.01.041 |
| 通讯作者 | Zheng, Guodi(zhenggd@igsnrr.ac.cn) |
| 英文摘要 | Sewage sludge bio-drying technology has attracted considerable attention in recent years. In this study, we explored the water-heat balance under two ventilation strategies for the first time in bio-drying plants with circulated air, and examined the influence of air circulation on water removal and heat recovery. We want to obtain the relationships of pile temperature, ventilation, and water removal. Then, it provides support for optimizing the bio-drying process conditions and improving the efficiency through analysis of the water-heat relationship. In the low-ventilation and high-ventilation trials, water removed was mainly on Days 9-12 and 1-4, respectively. Ventilation and pile temperature jointly determine the water removed during the bio-drying process. Water balance indicated that more than 30% of the water was removed under the nonventilated process. More organic matter was degraded to maintain a higher pile temperature under low-ventilation than under high-ventilation, which also led to more radiation heat being lost. High-ventilation trial input less energy (3.36 MJ/kg water removed) but obtained a higher bio-drying index I (7.04) and heat utilization efficiency Q(effic) (94.1%). Heat balance showed that lower energy consumption by dry air (Q(dryair)) was obtained due to circulation air with high temperature. Circulation air also has a higher carried capacity of water vapor but carries more water into the pile due to higher humidity. |
| WOS关键词 | MUNICIPAL SOLID-WASTE ; INITIAL MOISTURE-CONTENT ; AERATION STRATEGY ; BULKING AGENT ; TEMPERATURE ; REMOVAL ; OPTIMIZATION ; ENHANCEMENT ; EVAPORATION ; DYNAMICS |
| 资助项目 | National Natural Science Foundation of China[41371455] ; National Natural Science Foundation of China[52070102] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000784289000013 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/174474]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zheng, Guodi |
| 作者单位 | 1.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.Beijing Greentech Grp Co Ltd, Beijing 100080, Peoples R China 4.Ningbo Univ, Sch Civil & Environm Engn, Ningbo 315211, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Bao,Chen, Tongbin,Zheng, Guodi,et al. Water-heat balance characteristics of the sewage sludge bio-drying process in a full-scale bio-drying plant with circulated air[J]. WASTE MANAGEMENT,2022,141:220-230. |
| APA | Yu, Bao.,Chen, Tongbin.,Zheng, Guodi.,Yang, Junxing.,Huang, Xue.,...&Cai, Lu.(2022).Water-heat balance characteristics of the sewage sludge bio-drying process in a full-scale bio-drying plant with circulated air.WASTE MANAGEMENT,141,220-230. |
| MLA | Yu, Bao,et al."Water-heat balance characteristics of the sewage sludge bio-drying process in a full-scale bio-drying plant with circulated air".WASTE MANAGEMENT 141(2022):220-230. |
入库方式： OAI收割
来源：地理科学与资源研究所
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