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Removal of Ammonium and Nitrate Nitrogens from Wastewater using Zeolite
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 Title & Authors
Removal of Ammonium and Nitrate Nitrogens from Wastewater using Zeolite
Kim, Choong Gon;
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The objective of this study lies in identifying the applicability of zeolite for the removal of wastewater ammonium and nitrate nitrogens. To this end, the author tracked adsorption variations as seen with the adsorption removal of wastewater ammonium and nitrate nitrogens. As a result, it was indicated that the maximum adsorption of zeolite acting on the adsorption removal of ammonium nitrogen would reach 120mg/g (weight of ammonium nitrogen divided by that of zeolite), and that Langmuir adsorption isotherm explained the adsorption of ammonium and nitrate nitrogens better than Freundlich adsorption isotherm. This means that zeolite makes ion exchanges with adsorbate for unilayer adsorption. It was also indicated that the removal efficiency of ammonium nitrogen with varying pH would be higher in the order of pH7 > pH5 > pH9 > pH3.
Zeolite;Ammonium nitrogen;Nitrate nitrogen;Adsorption;pH;
 Cited by
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[백주현, 김금용, 류홍덕, 이상일, "호소수내 암모니성 질소 및 인 동시 제거를 위한 란탄-제올라이트 복합체 개발", 대한환경공학회지] Paek, J., Kim, K., Ryu, H., and Lee, S., "Development of La(III)-zeolite Composite for the Simultaneous Remaval of Ammonium Nitrogen and Phosphate in Confined Water Bodies" J. KSEE., 32(8), pp. 761-766. (2010).