摘要
金属盐改性活性炭在净水处理中具有广阔的应用前景.利用浸渍法制备了5种(Al3+,H+,Zn2+,Cu2+,Mn7+)改性活性炭,用过滤手段对改性活性炭吸附去除苯酚的性能进行了研究.结果表明,各种改性活性炭过滤去除苯酚性能的高低顺序为:Al3+>H+>Zn2+>CK>Cu2+>Mn7+;活性炭滤柱对苯酚原水具有较强的耐冲击性能,在较低滤速下,铝盐改性活性炭滤柱对中低质量浓度苯酚水的净化能力达99%以上,出水质量浓度低于1 mg/L,整体上优于盐酸活化炭滤柱.在净水深度处理中,铝盐可作为活性炭改性的主要方向之一.
Activated carbon modified by Metal salts has broad application prospects in water purification. The modified activated carbons from five salts（ Al^3＋ , H ^＋ ,Zn^2＋ , Cu^2＋ , Mn^7＋ ） were respectively prepared using the impregnation method, and the adsorption performance of phenol solution by a filtration process was investigated with different modified activated carbon. The results showed that the adsorption performance on modified acti- vated carbons by these different salts gradually decreased in the direction： Al^3＋ 〉 H ^＋ 〉Zn^2＋ 〉 Cu^2＋〉 Mn^7＋ . The filter bed of modified activated carbons had a stronger resistance impact on phenol solution. In a lower filtration rate, the purification capacity of modified activated carbon by aluminum salts achieved more than 99% in dealing with low concentrations of phenol solution, and the effluent concentration was lower than 1 mg/L. Overall. The effect of this kind activated carbon was superior to the other kind by hydrochloric acids. Therefore, in the depth of water treatment, aluminum salts can be used as one of the main direction of the ac- tivated carbon modified.
出处
《河南理工大学学报（自然科学版）》
CAS
北大核心
2012年第5期617-621,共5页
Journal of Henan Polytechnic University（Natural Science）
基金
河南理工大学青年基金重点资助项目(Q2008-31)
关键词
改性活性炭
过滤
苯酚
铝盐
modified activated carbon
adsorption
filtration
phenol
aluminum salts
