Influence of calcium compounds as a compression framework on activated sludge dewaterability and calorific value
文献类型：期刊论文
| 作者 | Yu, Yang1,2; Wei, Huangzhao1; Yu, Yonghui1; Yu, Li1; Wang, Sen1; Sun, Chenglin1 |
| 刊名 | ENVIRONMENTAL TECHNOLOGY
 |
| 出版日期 | 2018 |
| 卷号 | 39期号:8页码:1025-1031 |
| 关键词 | Activated Sludge Dewaterability Compressed Filtration Calorific Value Combustion Gas |
| ISSN号 | 0959-3330 |
| DOI | 10.1080/09593330.2017.1319422 |
| 文献子类 | Article |
| 英文摘要 | Calcium compounds have been known to be important for enhancing aggregation and dewaterability of activated sludge. In this study, the effect of calcium compounds (CaO, Ca(OH)(2), CaCl2, CaSO4 and CaCO3, respectively) on sludge dewaterability and calorific value was investigated. Upon addition of CaO, Ca(OH)(2), CaCl2, CaSO4 and CaCO3 (112mg/g dry sludge) into activated sludge, after compressed filtration the moisture content of sludge was found to be 49.7%, 55.7%, 57.1%, 65.3% and 56.5%, respectively. The addition of calcium compounds altered the structure of sludge by CaCO3 and Ca(OH)(2) production, which improved sludge filterability and provided frameworks and water passages during compression. Furthermore, sludge conditioned by CaO addition had better dewaterability than other calcium compounds. The heat generated from the CaO hydration and high pH might damage flocs' structure and improve dewaterability of sludge. Moreover, it was found that excess addition of calcium compounds led to low calorific value in combustion process. The study concluded that CaO is the optimal additive for sludge further dewatering by compressed filtration. |
| WOS关键词 | OXYGEN BOMB COMBUSTION ; SEWAGE-SLUDGE ; ION CHROMATOGRAPHY ; ELEMENTAL ANALYSIS ; CATIONS ; FLOCCULATION ; ENHANCEMENT ; TEMPERATURE ; PERFORMANCE ; MECHANISMS |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000427847400008 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/168866]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Sun, Chenglin |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian, Peoples R China 2.Nanjing Tech Univ, Sch Environm Sci & Engn, Nanjing, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Yang,Wei, Huangzhao,Yu, Yonghui,et al. Influence of calcium compounds as a compression framework on activated sludge dewaterability and calorific value[J]. ENVIRONMENTAL TECHNOLOGY,2018,39(8):1025-1031. |
| APA | Yu, Yang,Wei, Huangzhao,Yu, Yonghui,Yu, Li,Wang, Sen,&Sun, Chenglin.(2018).Influence of calcium compounds as a compression framework on activated sludge dewaterability and calorific value.ENVIRONMENTAL TECHNOLOGY,39(8),1025-1031. |
| MLA | Yu, Yang,et al."Influence of calcium compounds as a compression framework on activated sludge dewaterability and calorific value".ENVIRONMENTAL TECHNOLOGY 39.8(2018):1025-1031. |
入库方式： OAI收割
来源：大连化学物理研究所
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