Geothermal Water Quality Assessment Based on Entropy Weighted TOPSIS Method in Xi'an, China

DOI

10.2991/seeie-19.2019.22How to use a DOI?

Keywords

geothermal water; water quality assessment; entropy weighted TOPSIS method; Xi'an

Abstract

Reasonable and objective geothermal water quality assessment can provide a scientific basis for the development and utilization of geothermal water resources. Based on the chemical data of the Quaternary sediment reservoir (Q) and the Lantian-Bahe Group (LB) in Xi’an, the entropy weighted TOPSIS method was used to evaluate the water quality of geothermal water. The results show that the chemical indices (except for TH) of the LB geothermal water exceed the standard with poor quality. For the geothermal water of the Q, only NH4+ and F- exceed the standard. The excessive NH4+ and F- are due to human activities and the dissolution of fluoride bearing minerals, respectively. Comprehensive assessment based on TOPSIS evaluation model also reveals the geothermal water quality of the Q is better than that of the LB. Besides, the entropy weighted TOPSIS method has good applicability in the quality assessment of geothermal water.

Copyright

© 2019, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Panpan Xu
AU  - Meng Guo
AU  - Hui Qian
AU  - Qiying Zhang
PY  - 2019/05
DA  - 2019/05
TI  - Geothermal Water Quality Assessment Based on Entropy Weighted TOPSIS Method in Xi'an, China
BT  - Proceedings of the 2019 2nd International Conference on Sustainable Energy, Environment and Information Engineering (SEEIE 2019)
PB  - Atlantis Press
SP  - 96
EP  - 98
SN  - 2352-5401
UR  - https://doi.org/10.2991/seeie-19.2019.22
DO  - 10.2991/seeie-19.2019.22
ID  - Xu2019/05
ER  -