2018 1st International Conference on Environment Prevention and Pollution Control Technology | |
Migration and transformation behavior of harmful elements of lightweight ceramsite preparation from yellow phosphorus slag | |
生态环境科学 | |
Jiang, Ming^1,2 ; Zhang, Jian-Yu^1,2 ; Wang, Xiao-Rong^1,2 ; Zhan, Fang-Dong^1,2 ; He, Yong-Mei^1,2 ; Liu, Hong-Pan^3 ; Li, Tian-Guo^1,2 ; Li, Bo^1,2 ; Ning, Ping^4 | |
College of Resources and Environment, Yunnan Agricultural University, Kunming | |
650201, China^1 | |
Yunnan Engineering Laboratory for Agro-environment Pollution Control and Eco-remediation, Kunming | |
650201, China^2 | |
College of Materials and Chemical Engineering, Chongqing University of Arts and Sciences, Chongqing | |
402160, China^3 | |
Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming | |
650500, China^4 | |
关键词: Gaseous pollutants; Gaseous products; Harmful elements; Heating system; Large amounts; Solid-phase; Transformation behavior; Yellow phosphorus; | |
Others : https://iopscience.iop.org/article/10.1088/1755-1315/199/4/042033/pdf DOI : 10.1088/1755-1315/199/4/042033 |
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学科分类:环境科学(综合) | |
来源: IOP | |
【 摘 要 】
In order to investigate the pollution behavior during the preparation of lightweight ceramsite from yellow phosphorus slag, the migration and transformation of the P-, S-, F-, and As-containing species in the heating system were simulated and calculated by FactSage 7.1 thermochemical software and databases. The results show that the P in the solid of Ca10(PO4)6F2 is transformed to solid Fe3P and a small amount of gaseous (P2O3)2. The S-containing gaseous pollutants (CS2, S2, PS and COS) start to appear, while a large amount of S remains in the solid phase of CaS. A small amount of F is released in the form of SiF4, and all As exists in gaseous products. At temperatures ranging from 100-1100°C, P, S, F, and As elements cannot be transformed into the slag phase.
【 预 览 】
Files | Size | Format | View |
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Migration and transformation behavior of harmful elements of lightweight ceramsite preparation from yellow phosphorus slag | 252KB | download |