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Adsorption Characteristics of Ammonium Nitrogen by Biochar from Diverse Origins in Water

TitleAdsorption Characteristics of Ammonium Nitrogen by Biochar from Diverse Origins in Water
Publication TypeJournal Article
Year of Publication2013
AuthorsLiu, Ning, Sun Zhen Tao, Wu Zheng Chao, Zhan Xiu Mei, Zhang Kai, Zhao En Feng, and Han Xiao Ri
JournalAdvanced Materials Research
Pagination305-312
Abstract

Corn straw biochar and peanut shell biochar were used as an adsorbent, duly affected by the condition of diverse concentrations of ammonium nitrogen, response times, the pH and temperature levels. The study focused on the adsorption characteristics of ammonium nitrogen by corn straw biochar and peanut shell biochar, which demonstrated that the adsorption rate of ammonium nitrogen by corn straw biochar and peanut shell biochar is higher in the initial response. The adsorption quantity rises quickly and attains equilibrium after 4 hours. The adsorbance, once stable was found to be 753.29mg/kg for corn straw biochar and 1003.70mg/kg for peanut shell biochar.The adsorption characteristics of ammonium nitrogen by corn straw biochar and peanut shell biochar are more fitted to the Freundlich equation (Freundlich adsorption isotherm), within the limits of pH 5 to9. The adsorption of ammonium nitrogen by corn straw biochar and peanut shell biochar increased with the increase in the pH and temperature. The adsorption effectiveness of peanut shell biochar is better than corn straw biochar.