典型文献
Effects of different Ca2+ behavior patterns in the electric field on membrane fouling formation and removal of trace organic compounds
文献摘要：
The effects of Ca2+ on membrane fouling and trace organic compounds (TrOCs) removal in an electric field-assisted microfiltration system were investigated in the presence of Na+alone for comparison.In the electric field,negatively charged bovine serum albumin (BSA)migrated towards the anode far away from the membrane surface,resulting in a 42.9％ trans-membrane pressure (TMP) reduction in the presence ofNa+ at 1.5 V.In contrast,because of the stronger charge shielding of Ca2+,the electrophoretic migration of BSA was limited and led to a negiectable effect of the electric field (1.5 V) on membrane fouling.However,un-der 3 V applied voltage,the synergistic effects of electrochemical oxidation and bridging interaction between Ca2+ and BSA promoted the formation of denser settleable flocs and a thinner porous cake layer,which alleviated membrane fouling with a 64.5％ decrease in TMP and nearly 100％ BSA removal.The TrOCs elimination increased with voltage and reached 29.4％-80.4％ at 3 V.The electric field could prolong the contact between TrOCs and strong oxidants generated on the anode,which enhanced the TrOCs removal.However,a stronger charge shielding ability of Ca2+ weakened the electric field force and thus lowered the TrOCs removal.
文献关键词：
中图分类号：
作者姓名：
Zhen Du;Min Ji;Ruying Li
作者机构：
School of Environmental Science and Engineering,Tianjin University,Tianjin 300350,China
文献出处：
引用格式：
[1]Zhen Du;Min Ji;Ruying Li-.Effects of different Ca2+ behavior patterns in the electric field on membrane fouling formation and removal of trace organic compounds)[J].环境科学学报（英文版）,2022(01):292-300
A类：
TrOCs,Na+alone,ofNa+,negiectable,settleable
B类：
Effects,different,Ca2+,behavior,patterns,electric,field,membrane,fouling,formation,removal,trace,organic,compounds,effects,assisted,microfiltration,system,investigated,presence,comparison,In,negatively,charged,bovine,serum,albumin,BSA,migrated,towards,anode,far,away,from,surface,resulting,trans,pressure,TMP,reduction,contrast,because,stronger,shielding,electrophoretic,migration,was,limited,led,However,der,applied,voltage,synergistic,electrochemical,oxidation,bridging,interaction,between,promoted,denser,flocs,thinner,porous,cake,layer,which,alleviated,decrease,nearly,elimination,increased,reached,could,prolong,contact,oxidants,generated,enhanced,ability,weakened,force,thus,lowered
AB值：
0.484042
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