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ZJUS-B
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology)  2013, Vol. 14 Issue (12): 1152-1161    DOI: 10.1631/jzus.B1300102
Articles     
Sorption of ammonium and phosphate from aqueous solution by biochar derived from phytoremediation plants
Zheng Zeng, Song-da Zhang, Ting-qiang Li, Feng-liang Zhao, Zhen-li He, He-ping Zhao, Xiao-e Yang, Hai-long Wang, Jing Zhao, Muhammad Tariq Rafiq
Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Ningbo Raw Water Group Co., Ltd., Ningbo 315100, China; Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Fort Pierce, FL 34945, USA; School of Environmental and Resource Sciences, Zhejiang A&F University, Lin'an 311300, China
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Abstract  The study on biochar derived from plant biomass for environmental applications is attracting more and more attention. Twelve sets of biochar were obtained by treating four phytoremediation plants, Salix rosthornii Seemen, Thalia dealbata, Vetiveria zizanioides, and Phragmites sp., sequentially through pyrolysis at 500 °C in a N2 environment, and under different temperatures (500, 600, and 700 °C) in a CO2 environment. The cation exchange capacity and specific surface area of biochar varied with both plant species and pyrolysis temperature. The magnesium (Mg) content of biochar derived from T. dealbata (TC) was obviously higher than that of the other plant biochars. This biochar also had the highest sorption capacity for phosphate and ammonium. In terms of biomass yields, adsorption capacity, and energy cost, T. dealbata biochar produced at 600 °C (TC600) is the most promising sorbent for removing contaminants (N and P) from aqueous solution. Therefore, T. dealbata appears to be the best candidate for phytoremediation application as its biomass can make a good biochar for environmental cleaning.

Key words： Biochar      Nutrient removal      Plant species      Pyrolysis temperature      Water quality     
Received: 05 April 2013      Published: 03 December 2013
CLC:  X52  
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Articles by authors
Zheng Zeng
Jing Zhao
Muhammad Tariq Rafiq
Ting-qiang Li
Song-da Zhang
Feng-liang Zhao
Zhen-li He
He-ping Zhao
Xiao-e Yang
Hai-long Wang
Cite this article:

Zheng Zeng, Song-da Zhang, Ting-qiang Li, Feng-liang Zhao, Zhen-li He, He-ping Zhao, Xiao-e Yang, Hai-long Wang, Jing Zhao, Muhammad Tariq Rafiq. Sorption of ammonium and phosphate from aqueous solution by biochar derived from phytoremediation plants. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2013, 14(12): 1152-1161.

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http://www.zjujournals.com/xueshu/zjus-b/10.1631/jzus.B1300102     OR     http://www.zjujournals.com/xueshu/zjus-b/Y2013/V14/I12/1152

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