Removal Of Antimony From Raw Water By Activated Carbon Supported Titanium Dioxide

China is the world's antimony and antimony,and antimony pollution in recent years,intensified trend,the study found that antimony is a heavy metal ions in the more difficult to remove one of the ions,and antimony pollution will have a great harm to human health.Previous studies have focused on the analysis of antimony-containing wastewater,and few reports have been reported on the removal of antimony in micro-polluted sources.On the one hand,the adsorption method is one of the most commonly used methods to remove antimony.On the other hand,activated carbon is the most widely used and effective adsorbent.Therefore,the effect of using activated carbon on nano-titania as adsorbent for the removal of antimony in micro-polluted source water The adsorption performance and mechanism of antimony in micro-polluted source water by activated carbon supported nano-titanium dioxide were studied.Specific experimental content is as follows:?1?Comparative Study on the Removal of Antimony from Microorganized Water by Granular Activated Carbon and Activated Carbon.And then the activated carbon supported nano-titanium dioxide.Experiments show that the powder activated carbon than the granular activated carbon as a better effect on the load.The optimum loading of powdered activated carbon supported nano-titania was 0.1g.?2?The best influencing factors of static experiment on activated carbon supported nano-titanium dioxide include the dosage.pH,temperature,shock time and competitive ions(Cl^-,NO₃^-,Ca²⁺,Mg²⁺).The optimum conditions are as follows:the optimum dosage is 2.0g;the optimum pH is 8;the optimum temperature is 20 ?;the best shock time is 150min;the competitive ions(Cl^-,NO₃^-,Ca²⁺,Mg²⁺)The effect is almost no effect.?3?The best influencing factors of dynamic experiment of activated carbon supported nano-titanium dioxide include flow rate and filter layer thickness.Experiments show that the best flow rate of 6ml/min;the best filter layer thickness of 0.4m.?4?The desorption and regeneration experiments of activated carbon supported nano-titanium dioxide were carried out to study its practical application value.The desorption rate was 95.07%and the desorption efficiency was good.The adsorption efficiency was 95.07%and the results were good.?5?Study on the mechanism of activated carbon supported nano-titanium dioxide,including appearance analysis after loading,functional group change,SEM analysis,XRD analysis and FTIR analysis.Experiments show that the functional groups before and after the load increased significantly,is the main mechanism of its adsorption.