摘要
本文论述了地热水开发利用及地热尾水排放过程中对环境造成的氟污染问题。实验结果表明：国内许多地热井点地热水中氟含量偏高，一般在０．５－１７ｍｇ／ｌ之间，最高可达４０ｍｇ／ｌ（国家饮水水质氟含量标准为１．０ｍｇ／ｌ）；利用地热水养鱼，当地热水中氟含量高于１．０ｍｇ／ｌ时，鱼体内氟化物含量高于２．０ｍｇ／ｋｇ，超过了国家食品卫生标准的要求；地热水灌溉能引起土壤氟含量增高，但高氟土壤对农作物品质影响不明显。
Abstract Geothermal utilization, especially the direct disposal of geothermal water may probably cause fluoride pollution in environment around the geothermal water areas. The investigation of geothermal fluids shows that fluoride is the main potential pollutants in the liquid effluent in many geothermal well in our country. It ranges 0.5-17.0mg/l and the highest is 40 mg/l. In fish farming used by geothermal water results in increase of fluoride level in soil. The quality of plants does not change evidently in high-fluoride-soil.
出处
《农业环境与发展》
1996年第3期40-42,共3页
Agro-Environment and Development
基金
天津市21世纪青年基金
