摘要
研究了壳聚糖对废水中Pb2+的吸附特性,考察了壳聚糖溶液加入量、吸附时间及体系pH等条件对壳聚糖吸附溶液中Pb2+效果的影响。当质量分数为0.8%的壳聚糖溶液加入量为0.4 mL、吸附时间为30 m in、体系pH为5~6时,处理浓度为1×10-4mol/L的含Pb2+溶液,Pb2+去除率可达98%;同样条件处理印染废水,Pb2+去除率可达92.6%。
The adsorbing capacity of chitosan for Pb^2＋ in wastewater was studied. The effects or chitosan aosage, adsorption time and pH on the adsorption efficiency of Pb^2＋ were investigated. When the dosage of chitosan with 0.8% mass fraction is 0.4 mL, the adsorbent time is 30 min, the system pH is 5.0-6.0, and the concentration of Pb^2＋ is 1. 0 × 10^-4 mol/L,the removal rate of Pb^2＋ in solution is 98% ,and that of Pb^2＋ in dyeing wastewater is 92.6% under the same conditions.
出处
《化工环保》
CAS
CSCD
北大核心
2005年第5期350-352,共3页
Environmental Protection of Chemical Industry
关键词
壳聚糖
废水处理
铅离子
吸附
chitosan
wastewater treatment
lead ion
adsorption
