| Characteristic pollutant purification analysis of modified phosphogypsum comprehensive utilization | |
| Wang, Chao-Qiang1,2,3,4; Xiong, De-Ming5; Chen, Yu3; Wu, Kai6; Tu, Min-Jie7; Wang, Pei-Xin7; Zhang, Zhao-Ji8; Zhou, Lei1 | |
| 2022-09-01 | |
| 发表期刊 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| ISSN | 0944-1344 |
| EISSN | 1614-7499 |
| 卷号 | 29期号:44页码:67456-67465 |
| 摘要 | The waste product phosphogypsum (PG) is produced in phosphoric acid production processes. Its storage requires large amounts of land resources and poses serious environmental risks. In this work, detailed experimental research was carried out to investigate the potential reuse of PG after calcination modification as a novel building material for cast-in-place concrete products. The calcination modification mechanism was studied, and the environmental risk assessment of modified PG was presented. The results showed that the calcination modification includes crystal phase transformation, removal of impurities, and modifying the pH value. The calcination was carried out at 280 degrees C for 5 h, where the resulting product was a pH value of 7.1, and the soluble fluorine and phosphorus removal rates reached up to 69.2% and 71.2%, respectively. These removal rates met the requirements of the China national standard Phosphogypsum (GB/T 23456-2018). To ensure the environmental safety, ecological risk assessment methods for determining the leaching toxicity of the modified PG were employed. The toxicity of Ba and P elements in the modified PG products was assessed, as well as the leaching toxicity concentrations of all particular heavy metals, which were found well below the limits set by the national standards. All the results presented strongly suggest that the 280 degrees C modified PG presented here has excellent application potential as a raw component in building materials. |
| 关键词 | PG Characteristic pollutants Purification Environment safety |
| DOI | 10.1007/s11356-022-22737-y |
| 收录类别 | SCIE |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| WOS记录号 | WOS:000849304200001 |
| 出版者 | SPRINGER HEIDELBERG |
| 原始文献类型 | Article ; Early Access |
| 出版地 | HEIDELBERG |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | https://ir.cqcet.edu.cn/handle/39TD4454/14065 |
| 专题 | 重庆电子科技职业大学 |
| 作者单位 | 1.Minist Educ, Key Lab Solid Waste Treatment & Resource Recycle, Mianyang 621010, Sichuan, Peoples R China; 2.Chongqing Jiaotong Univ, Sch Mat Sci & Engn, Chongqing 400074, Peoples R China; 3.Chongqing Haopan Energy Saving Technol Co Ltd, Chongqing 401329, Peoples R China; 4.Chongqing Hebang Bldg Mat Co Ltd, Chongqing 408100, Peoples R China; 5.Chongqing Coll Elect Engn, Sch Elect & Internet Things, Chongqing 400000, Peoples R China; 6.Tongji Univ, Key Lab Adv Civil Engn Mat, Minist Educ, Shanghai 201804, Peoples R China; 7.CSCEC Strait Construct & Dev Co Ltd, Fuzhou 350015, Peoples R China; 8.Chinese Acad Sci, Key Lab Urban Pollutant Convers, Xiamen 361021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Chao-Qiang,Xiong, De-Ming,Chen, Yu,et al. Characteristic pollutant purification analysis of modified phosphogypsum comprehensive utilization[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2022,29(44):67456-67465. |
| APA | Wang, Chao-Qiang.,Xiong, De-Ming.,Chen, Yu.,Wu, Kai.,Tu, Min-Jie.,...&Zhou, Lei.(2022).Characteristic pollutant purification analysis of modified phosphogypsum comprehensive utilization.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,29(44),67456-67465. |
| MLA | Wang, Chao-Qiang,et al."Characteristic pollutant purification analysis of modified phosphogypsum comprehensive utilization".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 29.44(2022):67456-67465. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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