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《Environmental Science & Technology》 2012-12
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Air Stripping of Ammonia from High-concentration Ammonia Wastewater with Surfactant as Third Component

GONG Fan-jie,WANG Guang-hua,SUN Ming-dong, LU Yun-zhou,RONG Xian-ping,LIU Tie-jun(College of Chemical Engineering and Technology,Wuhan University of Science and Technology,Wuhan 430081,China)  
An experiment was conducted on a bench-scale packed tower used as an air stripper,with a kind of surfactant added as the third component,to remove ammonia from a stream of high-concentration ammonia wastewater.Parameters,including pH,temperature,n(volume ratio of air to liquid)and ρ(dose of the surfactant added),were studied about their influences on stripping efficiency,and the result showed addition of the surfactant could increase ammonia removal efficiency by 2%.Eventually,the experiment led to the optimum condition for ammonia stripping in terms of temperature and pH,with the ammonia concentration after treatment as low as that needed for the consequent secondary biological treatment of wastewater.
【Fund】: 国家自然科学基金资助项目(20976141);; 湖北省高校重大产学研项目
【CateGory Index】: X703.1
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