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钼冶炼烟气制酸高氟废水的处理
引用本文:范小祥,琚成新.钼冶炼烟气制酸高氟废水的处理[J].硫酸工业,2012(4):14-16.
作者姓名:范小祥  琚成新
作者单位:洛阳钼业集团金属材料有限公司,河南洛阳,471000
摘    要:钼冶炼烟气制酸产生的高氟废水采用电石渣-氯化钙和硫酸亚铁处理,再用浓硫酸反调pH值后排放.通过实验室试验,确定中和pH值范围为10~ 11、氯化钙用量为400 mg/L、硫酸亚铁用量为600 mg/L,沉淀时间4h.工业应用表明,出水可满足GB 8978-1996《废水综合排放标准》一级排放要求.

关 键 词:钼冶炼烟气  硫酸生产  高氟废水  处理  电石渣  氯化钙  硫酸亚铁

Treatment of high-fluorine wastewater from sulphuric acid production based molybdenum roaster off-gas
FAN Xiaoxiang , JU Chengxin.Treatment of high-fluorine wastewater from sulphuric acid production based molybdenum roaster off-gas[J].Sulphuric Acid Industry,2012(4):14-16.
Authors:FAN Xiaoxiang  JU Chengxin
Affiliation:(China Molybdenum Metallic Material Co.,Ltd.,Luoyang,Henan,471000,China)
Abstract:The high-fluorine wastewater from scrubbing process of molybdenum roaster off-gas in a sulphuric acid plant is treated by carbide slag- calcium chloride and ferrous sulphate,and then discharged after readjusting pH with concentrated sulphuric acid.The control parameters were determined in laboratory tests as follows;pH range for neutralization of 10 - 11,calcium chloride dosage of 400 mg/L,ferrous sulphate dosage of 600 mg/L,and settling time of 4 h.The industrial application showed that effluent water could meet Class 1 criteria of GB 8978 - 1996.Integrated Wastewater Discharge Standard.
Keywords:molybdenum roaster off-gas  sulphuric acid production  high-fluoride wastewater  treatment  carbide slag  calcium chloride  ferrous sulphate
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