摘要
采用超声波-铁氧体法对含镍模拟电镀废水进行处理,考察了pH值、超声波辐射时间、声能密度、H2O2的投加量、加料摩尔比(nFe2+∶nNi2+)、Ni 2+的初始质量浓度以及不同金属离子共存对废水中Ni 2+的去除率的影响。结果表明:在H2O2的投加量为28.4mg/L,加料摩尔比为2,pH值为11.5,温度为50℃,反应时间为45min的条件下,废水中Ni 2+的质量浓度从250mg/L降至0.495mg/L,去除率达到99.40%,达到国家排放标准。
The treatment of nickel-containing simulated electroplating wastewater with ultrasonic-ferrite method was studied. The effects of pH value, ultrasonic radiation time, sound energy density, H2O2 dosage, feeding molar ratio （nFe^2＋ ： nN^2＋ ）, Ni^2＋ initial mass concentration as well as the coexistence of different metal ions on the removal rate of Ni^2＋in the wastewater were investigated. The results show that when H202 dosage is 28.4 mg/L, feed molar ratio 2, pH value 11.5, temperature 50℃, and reaction time 45 min, the Ni^2＋ mass concentration in the wastewater is decreased from 250 mg/L to 0. 495 mg/L, the removal rate reaching 99.40 %, up to the national discharge standards.
出处
《电镀与环保》
CAS
CSCD
北大核心
2012年第6期42-45,共4页
Electroplating & Pollution Control
关键词
超声波-铁氧体法
含镍模拟电镀废水
去除率
ultrasonic-ferrite method
nickel-containing simulated electroplating wastewater
removal rate
