【摘要】 水生植物对地热废水净化作用的研究郭静，阮宜纶，林荣忱（天津大学土木系，天津３０００７２）关键词：地热废水；氟；水生植物；富集系数；灌溉水质标准１前言我国华北地区地热水资源丰富。地热水由地下抽取上来，可以直接地用于采暖、沐浴、理疗、温室栽培、渔业养殖等...更多还原

【Abstract】 The geothermal wastewater in north China usually has high salinity,and contains ofharmful chemical elements,especially fluorine. The F content in the wastewater is around 7mg/L. The direct discharge of the wastewater is a source of environmental pollution. Use ofaquatic plants to purify the geothermal wastewater is an economical and effective method.The results of a pilot scale study indicated that aquatic plants,such as water hyacinth,phragmites communis,and typha orientalis, could grow in geothermal wastewater subjectedto pretreatment with lime precipitation technique and may absorb F,As,and Cd from thewastewater,The wastewater after purification can be used for irrigation purpose.更多还原