摘要
研究了纳米铁投加量、PO34-浓度、温度、pH对纳米铁去除人工配制磷酸盐废水中PO43-的影响,并验证了纳米铁对PO34-的吸附模式。试验表明:磷酸盐初始浓度一定时,增加纳米铁的投加量能增大对PO43-的吸附;纳米铁投加量一定时,纳米铁的平衡吸附量则随PO43-初始浓度的增加而增大;25℃时纳米铁对PO43-的吸附能力最强,升高或降低温度,吸附能力均下降;pH对纳米铁去除PO34-的影响较大,pH=4时的吸附能力最强,增大或降低pH,吸附能力均下降;纳米铁对PO43-的吸附符合Freundlich方程而不符合Langmuir方程。
The effect of various factors such as nanoscale iron dose,initial concentration of PO3-4,temperature and pH on phosphate adsorption was studied using manual simulation phosphate wastewater.Experimental results indicate that the PO3-4 adsorption increased with increasing nanoscale iron dosage and the equilibrium adsorption quantity increases with increasing initial phosphate concentrations.The temperature at 25 ℃ and the pH at 4 favored the maximum adsorption of PO3-4 and the equilibrium adsorption quantity ...
出处
《给水排水》
CSCD
北大核心
2008年第S1期191-195,共5页
Water & Wastewater Engineering
基金
国家自然科学基金项目(40102027
50578151)
北京市自然科学基金(8052017)
北京市教委共建项目(51900265005)
关键词
纳米铁
除磷
吸附能力
影响因素
Nanoscale iron
Phosphate removal
Adsorption
Influencing factors
