In situ gelation treatment of desulfurization wastewater using alginate
文献类型：期刊论文
| 作者 | Li, Yongtong; Zhuang, Yuan; Ma, Dawei; Shi, Baoyou ; Hao, Haotian; Li, Delin; Chen, Jian; Deng, Jianmian
|
| 刊名 | DESALINATION AND WATER TREATMENT
 |
| 出版日期 | 2021-03 |
| 卷号 | 217页码:137-144 |
| 关键词 | Desulfurization wastewater Alginate In situ gelation Ethylenediamine |
| ISSN号 | 1944-3994 |
| 英文摘要 | To overcome the limitations of traditional desulfurization wastewater treatment in coal-fired power plants that entail complicated processes and high chemical consumption, we propose a novel in situ gelation treatment combining flocculation and adsorption using alginate without additional cross-linking agents. Metal ion pollutants in desulfurization wastewater were employed as crosslinkers to gelate biomacromolecules of alginate resulting in the simultaneous formation of hydrogels and the removal of pollutants. The results show that alginate can effectively utilize the metal ions in desulfurization wastewater, which are instantaneously gelated into hydrogels, resulting in flocculation and adsorption. An alginate dosage of 12 g/L and a reaction time of 3 h were identified as the optimum reaction conditions. Alginate was modified using 1,3,5-triazine-2,4,6-trithiol trisodium salt, ethylenediamine and thiosemicarbazide to enhance its contact with metal ions. The results demonstrate that the optimum treatment effect was obtained using ethylenediamine at 0.02 g/L, with removal rates of 71.1%, 70.8%, 64.1% and 65.0% for Ca, Cr, Cd and As, respectively. The method proposed here is easy to operate and with low cost, suggesting broad prospects for application in industrial wastewater treatment. |
| WOS研究方向 | Engineering, Chemical ; Water Resources |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45953]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.State Grid Anhui Elect Power Co Ltd, Power Sci Res Inst, Hefei 230601, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Natl Engn Lab Ind Wastewater Treatment, Beijing 100085, Peoples R China 5.North China Univ Water Resources & Elect Power, Sch Environm & Municipal Engn, Zhengzhou 6.Anhui Xinli Elect Technol Consulting Co Ltd, Hefei 230601, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yongtong,Zhuang, Yuan,Ma, Dawei,et al. In situ gelation treatment of desulfurization wastewater using alginate[J]. DESALINATION AND WATER TREATMENT,2021,217:137-144. |
| APA | Li, Yongtong.,Zhuang, Yuan.,Ma, Dawei.,Shi, Baoyou.,Hao, Haotian.,...&Deng, Jianmian.(2021).In situ gelation treatment of desulfurization wastewater using alginate.DESALINATION AND WATER TREATMENT,217,137-144. |
| MLA | Li, Yongtong,et al."In situ gelation treatment of desulfurization wastewater using alginate".DESALINATION AND WATER TREATMENT 217(2021):137-144. |
入库方式： OAI收割
来源：生态环境研究中心
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