| 掺杂作用与HW模型在掺杂作用研究中的应用 |
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| 引用本文： | 袁见齐,段振豪.掺杂作用与HW模型在掺杂作用研究中的应用[J].地球科学,1989,14(5):553-562. |
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| 作者姓名： | 袁见齐 段振豪 |
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| 作者单位： | China University of Geosciences，Beijing 100083 |
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| 摘 要： |
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| 关 键 词： | 掺杂作用 HW模型 盐湖 盐类矿床 |
MIXATION OF NATURAL WATERS AND THE APPLICATION OF HW-MODEL TO THE STUDY OF MIXATION |
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| Yuan Jianqi Duan Zhenhao.MIXATION OF NATURAL WATERS AND THE APPLICATION OF HW-MODEL TO THE STUDY OF MIXATION[J].Earth Science-Journal of China University of Geosciences,1989,14(5):553-562. |
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| Authors: | Yuan Jianqi Duan Zhenhao |
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| Abstract: | Mixation of natural waters is a widespread geological phenomenon of physi-cochemical reactions that take place when natural waters of different compositions mix one another under geological settings. "Chanza" plays a very important rolein the evolution of natural waters, the formation of salt deposits and even the exploiting of salt lakes. Qarhan Saline Lake (QSL ) in Qaidam Basin is known as "natural lab. " for the study of salt deposits. Frequent mingling of brines of different compositions resulted in salting out of gypsum, halite, carnallite and other minerals, and in the change of brine compositions exerted a great influence on the evolution of the lake and the formation of potash. In the process of expoi-ting of the lake, mixation of brines may lead to unexpected dissolving and crystallizing activities that in turn harm or benifit production. It is of very important economical value to predict the dissolution and crystallization before we make any plan to let brines mix in a optimum way for production. Emphasis is made on the application of HW-model, a model of highly non-ideal multiphase electrolyte solutions based on Pitzer theory, to the study of mixation of natural waters. Field observations, lab. work and computer simulating consistently indicate that HW-model constitute the best approach to the study of mixation. Our computer program can predict what kind of physicochemical reaction will happen when two brines or waters mix, with the result coinciding with field observations and experiments very well. |
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| Keywords: | natural water water chemistry saline lake salt deposit electrolyte solution mixation |
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