%0 Journal Article
%T Treatment of high hardness and strontium-rich groundwater by chemical softening-ultrafiltration process<br>高硬度富锶地下水的软化沉淀-超滤膜联用工艺
%A Xu Wenbo
%A Wang Dongsheng
%A Duan Jinming
%A Xu Xuzheng
%A <br>徐文博
%A 王东升
%A 段晋明
%A 徐绪筝
%J 环境工程学报
%D 2012
%I 
%X Chemical softening-ultrafiltration processes with lime or lime-sodium carbonate composite as the softening agents were investigated on the treatment of high hardness and strontium-rich groundwater,and the effects of chemical dosage on the strontium content in the effluents were studied.The results showed that the total hardness was reduced from 287.12 mg/L to 96.44 mg/L with its removal of 66.41% and strontium content in the effluent was from 0.37 mg/L to 0.21 mg/L at the optimal dosage of 270 mg/L Ca(OH)2,while for the lime-sodium carbonate method the total hardness was 60.34 mg/L with 78.98% of the removal and strontium content was 0.02 mg/L at the optimal dosage of 270 mg/L Ca(OH)2 and 160 mg/L Na2CO3.Both the lime and lime-sodium carbonate composite methods by the chemical softening/ultrafiltration process can get the effluent total hardness to the requirement for groundwater softening treatment.The effluents by the lime softening/ultrafiltration method still maintain its high-level content of trace strontium,which is beneficial to man's health and makes them suitable for the quality of strontium-rich mineral water,whereas a great loss of trace strontium in the groundwater was resulted in by the lime-sodium carbonate composite softening/ultrafiltration method.
%K strontium content
%K ultrafiltration
%K pharmacy softening
%K high hardness and strontium-rich groundwater<br>锶含量
%K 超滤膜
%K 药剂软化
%K 高硬度富锶地下水
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=DB871EB9FCB00633F494884D61E05DA5&yid=99E9153A83D4CB11&vid=B31275AF3241DB2D&iid=F3090AE9B60B7ED1&sid=5DC287FD320E5453&eid=ECDB70988BBA121B&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=16