和田市地下水源水质特征及其处理对策研究

Study on the water quality characteristics and treatment measures of the ground water in Hetian City

摘要根据和田市第二水厂水源水的近3年监测数据，分析了当地地下水的水质特征及主要水质问题，提出了相应的处理对策，并利用小试进行了初步验证。结果表明：和田地区地下水源水质相对较好，除氟化物外其余指标均满足《地下水环境质量标准》（GB／T14848～93）Ⅲ类水的要求；氟化物含量相对较高，含量基本稳定在1．2～1．4mg／L；利用所研发的除氟方法可有效降低含氟量至1．0mg／L以下，且可改善部分水质指标，增加处理成本约为0．17元／m3。综上，和田地区地下水水厂需要增设适当的除氟设备或措施。

Based on the recent continuous 3 years monitored data of the source water quality of the Hetian No. 2 Water Treatment Plant, this paper analyzed the characteristics and major prob- lems of the local ground water quality and offered the corresponding measures. The preliminary test was carried out through the experiment study. The results showed that the ground water quali- ty in Hetian region was satisfying. It met the requirements of the third class of Environmental quality standard for ground zoater（GB/T 14848--93） except the fluoride. The content of iquoride in the groundwater was relatively high, which was in the range between 1.2 and 1.4 mg/L. A new water treatment could decrease the fluoride to below 1. 0 mg/L and the cost of treatment was about 0. 17 YUAN/m3. In conclusion, the local ground water in Hetian region needed to be treated with a fluoride-re- moving facility.