| 不同改性玉米芯对含镉污水的处理效果 |
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| 引用本文： | 严素定,罗代华,田一博. 不同改性玉米芯对含镉污水的处理效果[J]. 湖北农业科学, 2012, 0(4): 702-703,733 |
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| 作者姓名： | 严素定 罗代华 田一博 |
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| 作者单位： | 湖北师范学院化学与环境工程学院;污染物分析与资源化技术湖北省重点实验室;湖北师范学院体育学院 |
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| 基金项目： | 湖北省教育厅项目(Q20112502) |
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| 摘 要： | 分别采用KOH、磷酸和柠檬酸对玉米芯进行改性处理,制得4种改性玉米芯MC-1～MC-4。通过单因素试验和正交试验探讨了玉米芯吸附Cd2+的适宜改性方法和最佳条件。结果表明,用KOH对玉米芯改性时,最佳活化温度为750℃;当溶液pH为6、玉米芯投加量为5.00 mg/mL、吸附剂种类为MC-2时改性玉米芯对Cd2+的吸附效果最佳。进一步研究表明,在最佳条件下,将改性玉米芯MC-2应用于含镉生活污水处理时,污水中的其他组分对改性玉米芯吸附Cd2+的效果有干扰。
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| 关 键 词： | 改性玉米芯 含镉污水 吸附效果 |
Treatment of Sewage with Cadmium Using Different Modified Corncobs |
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| YAN Su-ding,LUO Dai-hua,TIAN Yi-bo. Treatment of Sewage with Cadmium Using Different Modified Corncobs[J]. Hubei Agricultural Sciences, 2012, 0(4): 702-703,733 |
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| Authors: | YAN Su-ding LUO Dai-hua TIAN Yi-bo |
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| Affiliation: | 1(1.College of Chemistry & Environmental Engineering,Hubei Normal University,Huangshi 435002,Hubei,China; 2.Hubei Key Laboratory of Pollutants Analysis and & Reuse Technology,Huangshi 435002,Hubei,China; 3.College of P E,Hubei Normal University,Huangshi 435002,Hubei,China) |
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| Abstract: | Four kinds of modified corncobs(from MC-1 to MC-4) were made by KOH,phosphoric acid and citric acid.Through single-factor and orthogonal experiments,the fittest modification method and the best condition of cadmium adsorption by corncob were discussed.The results showed that the best activation temperature was 750 ℃ when corncob was modified by KOH.The adsorption efficiency of corncobs to Cd2+ was the best when pH in solution was 6,the dose of corncob was 5 mg/mL,and the adsorbent type was MC-2.Further study showed that while the modified corncobs were applied in treating sewage with cadmium,other components of sewage would distract the adsorption efficiency. |
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| Keywords: | modified corncobs sewage with cadmium adsorption effect |
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