NDLI: Microwave Synthesis of Rare Earth Adsorbent

Content Provider	IEEE Xplore Digital Library
Author	Liu Weiwen Ning Ping Huang Xiaofeng Zhu Wenjie Chen Liqiong Tan Juan
Copyright Year	2009
Abstract	The new-style Ce-modified zeolite adsorbent (CZA) was prepared by modifying 90μm zeolite with cerium. Using the microwave synthesis technology instead of the conventional roasting technology in the absorbent preparation process. The adsorption capacity of microwave CZA for ammonia nitrogen and phosphate were 6.25mg/g and 18.2mg/g respectively. These data correlated well with Freundlich adsorption isotherm model. The value of the parameter Kf and n of the microwave CZA are bigger than the roasting CZA, which showed that the adsorption capacity of the microwave CZA is better than the roasting CZA. The removal efficiency of the ammonia nitrogen and phosphate can reach 80.0% and 99.5% respectively under the following conditions: the quantity of microwave CZA was 1g/L, the pH value of the solution was 4~6 and the contact time was 2.5h. Adsorption capacity of ammonia nitrogen and phosphate would be descended less than 15% and 8% respectively after the absorbent regenerated 10 times, which meant a good stability of microwave CZA.
Starting Page	629
Ending Page	632
File Size	371945
Page Count	4
File Format	PDF
ISBN	9780769538198
DOI	10.1109/ICEET.2009.390
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Powders Instruments Microwave ovens Microwave synthesis Rare earth Nitrogen Chemical technology Electromagnetic heating Microwave technology Furnaces Phosphate Ammonia nitrogen Lakes Heat transfer
Content Type	Text
Resource Type	Article

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