陈红亮,龙 黔,舒建成,刘仁龙
(1.安顺学院 化学化工学院,贵州 安顺 561000;2.重庆大学 化学化工学院,重庆 400044)
陈红亮1,龙 黔1,舒建成2,刘仁龙2
(1.安顺学院 化学化工学院,贵州 安顺 561000;2.重庆大学 化学化工学院,重庆 400044)
1.1 试样与试剂
试验所用氯化钠(NaCl)、碘化汞(HgI2)、碘化钾(KI)、氢氧化钠(NaOH)、酒石酸钾钠(KNaC4H6O6·4H2O)均为分析纯试剂,氯化铵(NH4Cl)为优级纯试剂,
1.2 试验方法
(1)
2.1 不同种类电极的影响
—●—钢板阴极,DSA阳极;—▲—石墨阴极,DSA阳极;—★—铜板阴极,DSA阳极;—◆—石墨阴极,石墨阳极。
图1 电极材料对去除率的影响(a)和钢、铜阴极板的溶解(b)
2.2 初始氯离子质量浓度的影响
—■—[Cl-]=0;—●—[Cl-]=145 mg/L;—▲—[Cl-]=434 mg/L;—▼—[Cl-]=723 mg/L。
2.3 溶液初始pH的影响
—■—pH=7;—●—pH=9; —▲—pH=10;—▼—pH=11。
(2)
(3)
(4)
(5)
2.4 电流密度的影响
电流密度:—■—4.4 mA/cm2;—●—8.7 mA/cm2;—▲—26 mA/cm2;—▼—43 mA/cm2。
质量浓度:—■—59 mg/L;—●—120 mg/L;—▲—179 mg/L;—▼—238 mg/L。
2.6 金属阳离子的影响
图6 不同金属阳离子对去除率的影响
(6)
2.7 氨氮去除的动力学分析
ln(ρ0/ρt) =Kt。
(7)
—■—59 mg/L:R2=0.993 2,K=0.032 8;—●—120 mg/L:R2=0.968 7,K=0.011 7;—▲—179 mg/L:R2=0.917 0,K=0.001 6;—▼—238 mg/L:R2=0.946 6,K=0.000 8。
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Removal of Ammonia-nitrogen From Leachate of Electrolytic Manganese Residue by Electrooxidation Technology
CHEN Hongliang1,LONG Qian1,SHU Jiancheng2,LIU Renlong2
(1.CollegeofChemistryandChemicalEngineering,AnshunUniversity,Anshun561000,China; 2.CollegeofChemistryandChemicalEngineering,ChongqingUniversity,Chongqing400044,China)
2016-10-19
贵州省教育厅科技拔尖人才支持项目(黔教合KY字[2016]094);安顺学院博士基金资助项目(asubsjj201604)。
陈红亮(1982-),男,河南辉县人,博士,副教授,主要研究方向为资源化工和污染控制。
X753
A
1009-2617(2017)03-0242-05
10.13355/j.cnki.sfyj.2017.03.018