Effects of Urea on Adsorption of Metsulfuron-Methyl by Three Kinds of Minerals

Abstract:

Adsorption of metsulfuron-methyl by kaolinite, goethite，amorphous alumina and the effects of urea on the adsorption were examined with equilibrium adsorption method. Results indicated that the adsorption was in accordance with Langmuir equation, with the maximum absorbing capacities ranking as amorphous alumina (2150 g•g-1), goethite (729.4 g•g-1), kaolinite (529.1g•g-1). When urea was used in the adsorption system, the absorbing capacities of goethite and amorphous alumina to metsulfuron-methyl decreased whatever the addition order of urea and metsulfuron-methyl was. However, when urea was added before or simultaneously with metsulfuron-methyl in suspension of kaolinite, the adsorption quantity of metsulfuron-methyl was increased．

• Periodical: Applied Mechanics and Materials (Volumes 295-298)
• Pages: 54-61
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.295-298.54
• Online since: February 2013
• Authors: Fa Bing Ye, Chun Bao Huang, Xu Jie Xiong, Yuan Yan Dong
• Keywords: Adsorption, Metsulfuron-Methyl, Minerals, Urea

References

[1] Nengwu Wang. J. Translation of Pesticide, 8(3): 13-16 (1986) (In Chinese).

[2] Banerjee , Seth , Bhattacharya , Pasha . Toxicology letters, 107: 33–47(1999).

[3] Fabing Ye, Xin Lai, Lihong Zhu, Yuanyan Dong. Journal of Aanhui Agricultural Sciences, 34(1): 86, 92 (2006) (In Chinese).

[4] Shaoquan Su. [J]. Modern agrochemicals, 5(4): 1-5 (2006) (In Chinese).

[5] Fabing Ye, Yonghong Liu, Chunbao Huang, et al. Journal of Aanhui Agricultural Sciences , 37(16): 7652-7653(2009) (In Chinese).

[6] Senesi N. [J]. Sci Total Environ. 124: 63-76. (1992).

[7] Yonghong Liu, Xiali Yue, Fabing Ye, et al. J. Enviromental Science &Technology, 30(1): 1-2(2007) (In Chinese).

[8] Weiping Liu, Jin Ji. J. of Chinese Environmental Science, 16（1）: 26-30 (In Chinese) (1996).

[9] Atkinson R, Posnel A, Quisk J. J. Phys. Chem. 71 (3): 551-554(1967).

[10] Kinniburgh D, Jackson M, Syers J. J. Soil Sci. Soc. Amer. Proc. 40: 796-799(1976).

[11] Ganor J, Nir S, Cama J. J. Chemical Geology, 177: 431-442. (2001).