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Volume 32 Issue 5
Aug.  2021
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Article Contents
LIN Hai, GUO Li-li, JIANG Le-yong. Preparation of antibacterial adsorption materials and application in reclaimed water treatment[J]. Chinese Journal of Engineering, 2010, 32(5): 644-649. doi: 10.13374/j.issn1001-053x.2010.05.008
Citation: LIN Hai, GUO Li-li, JIANG Le-yong. Preparation of antibacterial adsorption materials and application in reclaimed water treatment[J]. Chinese Journal of Engineering, 2010, 32(5): 644-649. doi: 10.13374/j.issn1001-053x.2010.05.008

Preparation of antibacterial adsorption materials and application in reclaimed water treatment

doi: 10.13374/j.issn1001-053x.2010.05.008
  • Received Date: 2009-08-31
  • Modified zeolite with better nitrogen removal effect was used to prepare antibacterial adsorption materials for treating the secondary effluent of high-concentration coliform and ammonia nitrogen. Among Ag+, Zn2+ and Cu2+ ions, silver-supported antibacterial adsorption materials have the best antibacterial properties and are beneficial to nitrogen removal. The optimal preparation conditions are the following:AgNO3 concentration of 85mg·g-1, pH 6-7, preparation time of 120min, reaction temperature of 40℃, and reaction speed of 150r·min-1. After the optimization, the silver content in the prepared materials is 49.79mg·g-1. 0.5g·L-1 of silver-supported antibacterial adsorption materials and 2g·L-1 of zeolite were applied to treat renewable water under the optimal conditions. The results show that the reaction time is 120min, the sterilizing rate is 98.87%, the removal rate of ammonia nitrogen is 66.54%, the mass concentration of residual nitrogen is 8.36mg·L-1, which achieve the water-quality indexes of the urban miscellaneous water.

     

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      沈陽化工大學材料科學與工程學院 沈陽 110142

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