Experimental Study of Modified Coal Fly Ash Adsorption Properties on Ammonia-Nitrogen in Biogas Slurry

Qian Cheng; Xing Yong Liu; Min Li

doi:10.4028/www.scientific.net/AMR.726-731.2687

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 726-731Experimental Study of Modified Coal Fly Ash...

Experimental Study of Modified Coal Fly Ash Adsorption Properties on Ammonia-Nitrogen in Biogas Slurry

Abstract:

With the development of the biogas construction, a plenty of biogas slurry was generated. It brought destruction to the environment for the biogas slurry was rich in nutrient components, especially ammonia-nitrogen. Its important that biogas slurry should be treated before it returns to the environment. The zeolite is extensively used in ammonia-nitrogen adsorption for its good adsorption effect. In this study, a modified coal fly ash (CFA) which was produced from raw CFA and had similar structure with zeolite was used as the adsorbent to adsorb ammonia-nitrogen in biogas slurry. The optimum adsorption conditions of modified CAF on adsorbing ammonia-nitrogen in biogas slurry were explored. The results showed that the best conditions were: the mass of modified CAF 1.3g, the initial pH value of solution 5~7 and the adsorption time 20 min.

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Periodical:

Advanced Materials Research (Volumes 726-731)

Pages:

2687-2690

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.726-731.2687

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Online since:

August 2013

Authors:

Qian Cheng, Xing Yong Liu, Min Li

Keywords:

Adsorption, Ammonium-Nitrogen, Biogas Slurry, Modified Coal Fly Ash

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