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我们于1983～1986年在天津新河石油库改装除氟设备,加盐酸把含氟量6.0mg/L井水的pH从8.8降至6.0～6.5;以8,5和3m/h三种滤速通过活性氧化铝滤层,控制出水含氟量均值<1.0mg/L,供近千人饮用。四个周期运行结果表明,本工艺与不降pH旧工艺相比,周期运行时间从80小时延长到365～475小时;平均产水量由160m~3提高到950m~(?);除氟容量从1.2上升到6.2～7.8mg~(F-)/gAl_2O_3;每m~3处理水的药品及滤料补充费由0.29元降至0.19元。本工艺结合国内条件,首先成功地应用于现场设备。现天津郊区及县有80个除氟站购置此种设备,将陆续采用。
In 1983 ~ 1986, we modified the de-fluoride equipment in Tianjin Xinhe Oil Depot. Adding hydrochloric acid reduced the pH of well water with the content of 6.0mg / L of fluoride from 8.8 to 6.0 ~ 6.5. Three kinds of filters at 8, 5 and 3m / h Speed through the active alumina filter, control the average fluorine content of effluent <1.0mg / L for nearly a thousand people drink. The results of the four cycles showed that the cycle time of this process was extended from 80 hours to 365-475 hours and the average water production increased from 160 to 3 to 950 m ~ 1.2 to 6.2 ~ 7.8mg ~ (F -) / gAl_2O_3; the cost of medicine and filter media per m ~ 3 treated water decreased from 0.29 yuan to 0.19 yuan. The process combined with domestic conditions, the first successful application of field equipment. Now in Tianjin suburbs and counties have fluoride decontamination station to purchase such equipment, will be gradually adopted.