Effect of humic acid on bisphenol A removal by Al~0-O_2 system

Under acid condition,the effect of humic acid(HA) on bisphenol A(BPA) removal,in situ generation of H2O2 and variation of pH value in Al0-O2 system was investigated;meanwhile,its influencing mechanism was discussed.The results of the test showed that,Al0-O2 system could effectively remove BPA from water,and the addition of HA was beneficial to BPA removal.The in situ generation of H2O2 in Al0-O2 system was inhibited by HA,the higher the HA concentration was,the more obvious the inhibition effect would be;however,HA could facilitate the transformation of H2O2 into.OH.As the promotion effect was superior to the inhibition effect,HA could be regarded as a promotion factor for BPA removal in the reaction.