Influence of forced air volume on water evaporation during sewage sludge bio-drying
文献类型：EI期刊论文
| 作者 | Zheng Guo-Di; Gao Ding; Chen Tong-Bin; Liu Hong-Tao |
| 发表日期 | 2013 |
| 关键词 | Piles Air Drying Evaporation Phase transitions Sewage sludge Water aeration |
| 英文摘要 | Mechanical aeration is critical to sewage sludge bio-drying, and the actual water loss caused by aeration can be better understood from investigations of the relationship between aeration and water evaporation from the sewage sludge bio-drying pile based on in situ measurements. This study was conducted to investigate the effects of forced air volume on the evaporation of water from a sewage sludge bio-drying pile. Dewatered sewage sludge was bio-dried using control technology for bio-drying, during which time the temperature, superficial air velocity and water evaporation were measured and calculated. The results indicated that the peak air velocity and water evaporation occurred in the thermophilic phase and second temperature-increasing phase, with the highest values of 0.0630.027ms-1 and 28.9kgton-1 matrix d-1, respectively, being observed on day 4. Air velocity above the pile during aeration was 43-100% higher than when there was no aeration, and there was a significantly positive correlation between air volume and water evaporation from day 1 to 15. The order of daily means of water evaporation was thermophilic phase>second temperature-increasing phase>temperature-increasing phase>cooling phase. Forced aeration controlled the pile temperature and improved evaporation, making it the key factor influencing water loss during the process of sewage sludge bio-drying. 2013 Elsevier Ltd. |
| 出处 | Water Research
 |
| 卷 | 47期:13页:4767-4773 |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/31231]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Zheng Guo-Di,Gao Ding,Chen Tong-Bin,et al. Influence of forced air volume on water evaporation during sewage sludge bio-drying. 2013. |
入库方式： OAI收割
来源：地理科学与资源研究所
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