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Abstract
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Article Information:
Adsorption Control Performance of Phosphorus Removal from Agricultural Non-Point Source Pollution by Nano-Aperture Lanthanum-modified Active Alumina
Hong-Bing Luo, Fei Li, Hao Lv, Ying-Mei Zeng, Ke Zhang and 1Bo Huang
Corresponding Author: Hong-Bing Luo
Submitted: August 31, 2012
Accepted: September 24, 2012
Published: December 20, 2012 |
Abstract:
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It is great significance to control the phosphorus pollution from agricultural non-point source pollution. In
this study, adsorption control performance of phosphorus removal from agricultural non-point source pollution by
manual nano-aperture Lanthanum-modified active alumina was a great inspiring from urban-rural-integration-area.
About 10 to 30 nanometers aperture on granule surfaces from the active alumina (&gamma-Al2 O3 which average sphere
diameters is 3 mm, was formed after modification from Lanthanum (III) chloride. Results show that the adsorption
performance of phosphorus removal by using nano-aperture Lanthanum-modified active alumina was much higher
percent 50% than active alumina under the optimum condition of pH (pH = 4), adsorption time (12 h) and
adsorption dosage of Lanthanum-modified active alumina (0.2 g/50 mL). The adsorption performance of phosphorus
removal by nano-aperture Lanthanum-modified active alumina can reach the percentage of 96 from water samples in
agricultural non-point source pollution. The adsorption kinetic accorded with the Pseudo-Second-order Kinetic
Equations (R2 = 0.9955). The isothermal adsorption property was described by the Langmuir Equation (R2 = 0.9982) which the biggest adsorption capacity was 0.257 mg/g. The average removal efficiency of phosphorus from general
farmland, corn field, paddy field, vegetable land was above 92%. It is very evident that the nano-aperture
Lanthanum-modified active alumina will be a promising material for phosphorus removal control from agricultural
non-point source pollution.
Key words: Activated alumina, agricultural non-point source pollution, lanthanum-modified, phosphorus adsorption, , ,
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Cite this Reference:
Hong-Bing Luo, Fei Li, Hao Lv, Ying-Mei Zeng, Ke Zhang and 1Bo Huang, . Adsorption Control Performance of Phosphorus Removal from Agricultural Non-Point Source Pollution by Nano-Aperture Lanthanum-modified Active Alumina. Advance Journal of Food Science and Technology, (6): 337-343.
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ISSN (Online): 2042-4876
ISSN (Print): 2042-4868 |
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