| 王桂仙,张启伟,张晓燕.竹炭对溶液中2,4-二硝基氯苯的吸附与回收研究[J].井冈山大学自然版,2012,(2):38-40 |
| 竹炭对溶液中2,4-二硝基氯苯的吸附与回收研究 |
| STUDY ON ADSORPTION AND RECOVERY OF 2,4-DINITROCHLOROBENZENE BY BAMBOO-CHARCOAL |
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| DOI： |
| 中文关键词: 竹炭 2,4-二硝基氯苯（CDNB） 吸附 回收 |
| 英文关键词: bamboo-charcoal 2,4-dinitrochlorobenzene（CDNB） absorption recovery |
| 基金项目:浙江省科技厅科技计划项目（2010C31G2260008）; 丽水学院校科研项目（2009021） |
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| 中文摘要: |
| 本研究了竹炭对溶液中2,4-二硝基氯苯（CDNB）的吸附行为。研究确定竹炭对CDNB的吸附平衡时间、最佳吸附pH以及吸附温度、吸附剂用量等因素对吸附效果的影响。实验结果表明：CDNB初始浓度c0=0.05mg/mL,T=298K,pH=5.0,吸附时间t=12h时,竹炭对CDNB的吸附率E可达到97.6%;用乙醇作洗脱再生剂,洗脱率可达95.2%;且脱附的CDNB可用蒸馏重结晶法回收,回收率可达86.4%。因此,竹炭是废水中CDNB吸附处理的材料。 |
| 英文摘要: |
| Adsorption behavior of the bamboo- charcoal for 2,4-Dinitrochlorobenzene（CDNB） was studied. Effects of the absorption equilibrium time, pH, temperature and mass of absorbent on the absorption efficiency were investigated. Results showed that bamboo-charcoal could effectively remove 97.6% CDNB from aqueous solution under the conditions of Co for 0.05 mg/mL, temperature for 298 K, pH for 5.0 and time for 12 h. The regeneration percentage could reach up to 95.2 % using alcohol as elution regenerant, and the desorbed CDNB can be recovered with the rate of 86.4% by distillation rec＇rystallization method. It could be concluded that the bamboo-charcoal is the better absorptive material removing CDNB from＇aqueous solution. |
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