The Study on Tail-Water Treatment Model in Shandong Province

Abstract

In the basis of region hydrogeological investigations, we conduct a partition of geothermal resources in Shandong Province,geothermal tail water are divided three types in the basis of Categories and Hydrochemical Characteristics, we finish the experiment of high-salinity geothermal tail water in laboratory.We take the geothermal tail water treatment of Dongying as an example in Shandong Province, get various parameters through batch xperimentses, analysis of the treatment effect of treatment processes,then determine the optimum treatment and select Physico-chemical pretreatment - Ion exchange - Nanofiltration - Reverse Osmosis Mode,Which lets water treatment costs drop to 2.2 yuan/m3.Finally we put froword different types of geothermal tail water treatment and discharge mode of Shandong Province, and raise a comprehensive rationalization proposals about geothermal tail-water development and utilization, which provide scientific basis for the development of geothermal resources.