层状双氢氧化物去除水中磷的实验研究
- 江湖52099
-
35 次阅读
-
0 次下载
-
2019-03-31 15:25:09
文档简介:
层状双氢氧化物去除水中磷的实验研究层状双氢氧化物去除水中磷的实验研究马明海,陈东风,张运成,钱丽萍(黄山学院生命与环境科学学院,安徽黄山245041)摘要:研究了层状双氢氧化物处理高浓度含磷废水的可行性,考察了pH值、温度、吸附时间、振荡速度等因素对磷去除率的影响。结果表明,当pH值为7、反应温度为25~C、吸附时间为60min、LDH投加量为0.1g/50ml、磷初始浓度为500mg/L、震荡速度为150r/niln时,磷的去除率高达94.82%,层状双氢氧化物对水中磷的吸附作用符合La/lgmiur等温方程。关键词:层状双氢氧化物;高浓度含磷废水;吸附;富营养化中图分类号:x7o3.5文献标志码:A文章编号:1005—8141(2010)04—0297—02StudyonRemovalofPhosphateinAqueousSolutionbyLayeredDoubleHydroxidesMAMing—hal,CHENDong—feng,ZHANGYun—cheng,QLi—ping(SchoolofLifeandEnvironmentScience,HuangshanCollege,Huangshan24504l,China)Abstract:Thefeasibilityanalysisofhigh—coneertrationphosphate—containingwastewatertreatingbylayereddoublehydroxides(LDH)wasstudied,thepHvalue,temperature,adsorptiontime,theoscillationspeedandotherfactorsOHtheimpactofphodphateremovalratewereinvestigated.Theresultsindicatedthatthephosphateremovalratereachedto94.82%whenpH=7,T=298K,t=60min,r(solid/liquor)=0.~g/S0ml,vP=500mg/L,andshockspeedWas150r/rain.eadsorptionisothermwascorrelatedwiththeLangmuir—typeisothermequationbetter.K
评论
发表评论