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The Removal Research on Low Concentration of Ammonium-Nitrogen Wastewater by the Natural Zeolite

LI Xiao-xia1,LIU Bing-juan2,CAI He-shan1(1.Department of Environmental Engineering,Foshan University,Foshan Guangzhou 528000,China; 2.Department of Construction Work,Handan Polytechnic College,Handan Hebei 056001,China)  
A batch experiment was conducted to investigate the removal efficiency of ammonium-nitrogen wastewater.The results showed that the selected materials have better and more stable absorptive effect.The removal efficiency of ammonium-nitrogen wastewater was influened by dosage,pH value,reaction time,rotate speed and grain size.The perfect removal efficiency were performed with the pH number being about 4,aditive amount of 3.0 g,the diameter of zeolites being 5.0 mm and the reaction time for about 90 minutes.The highest removal efficiency of ammonium-nitrogen was up to 80%.
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