摘要:

為(wei)了有效(xiao)去除(chu)(chu)水(shui)(shui)中的(de)氟離(li)(li)(li)子(zi)(zi)(zi)，對電(dian)(dian)絮凝(ning)-氣(qi)浮-砂(sha)濾組合工(gong)藝除(chu)(chu)氟（F-）離(li)(li)(li)子(zi)(zi)(zi)進行了研究。詳細考察了電(dian)(dian)壓(ya)、電(dian)(dian)絮凝(ning)停(ting)留(liu)時(shi)間(jian)和初(chu)(chu)始(shi)F-離(li)(li)(li)子(zi)(zi)(zi)濃度(du)等參數對除(chu)(chu)F-離(li)(li)(li)子(zi)(zi)(zi)效(xiao)率的(de)影響。結果(guo)表明(ming)：當初(chu)(chu)始(shi)F-離(li)(li)(li)子(zi)(zi)(zi)濃度(du)為(wei)1.50mg/L，停(ting)留(liu)時(shi)間(jian)為(wei)10min，電(dian)(dian)壓(ya)為(wei)15V條(tiao)件(jian)下(xia)，出水(shui)(shui)F-離(li)(li)(li)子(zi)(zi)(zi)濃度(du)為(wei)0.92mg/L；當初(chu)(chu)始(shi)F-離(li)(li)(li)子(zi)(zi)(zi)濃度(du)為(wei)2.5mg/L，停(ting)留(liu)時(shi)間(jian)為(wei)15min，電(dian)(dian)壓(ya)15V條(tiao)件(jian)下(xia)，出水(shui)(shui)F-離(li)(li)(li)子(zi)(zi)(zi)濃度(du)為(wei)0.98mg/L。用Al-Ferron逐時(shi)絡合比色法表征了電(dian)(dian)絮凝(ning)和氣(qi)浮單元(yuan)出水(shui)(shui)中鋁形態隨時(shi)間(jian)的(de)變(bian)化。結果(guo)顯示：電(dian)(dian)絮凝(ning)出水(shui)(shui)Ala含量(liang)隨時(shi)間(jian)增(zeng)加(jia)迅速降低(di)到5%以下(xia)，電(dian)(dian)絮凝(ning)和氣(qi)浮單元(yuan)出水(shui)(shui)Alb含量(liang)均占到50%以上，Alc含量(liang)均隨時(shi)間(jian)增(zeng)加(jia)而(er)增(zeng)加(jia)。

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