期刊
BIORESOURCE TECHNOLOGY
卷 102, 期 10, 页码 6260-6265出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.02.104
关键词
Recovery; Lead; Fast pyrolysis; Leaching; Economic evaluation
资金
- National Natural Science Foundation of China [50978242]
- National 863 Program [2008BADC4B18]
- National Basic Research Program of China [2007CB210200]
- National Water Project [2008ZX07103-001]
An integrated biosorption-pyrolysis technology was employed to recover Pb from aqueous solution. A series of biosorption, fast pyrolysis and leaching experiments were carried out. The optimum pH and adsorbent dose for Pb adsorption from aqueous solution are 6.0 and 3.0 g L-1, respectively. The temperature is a key factor influencing the yields of pyrolysis products, and the maximum yield of bio-oil is 45.7% at 773 K. The pyrolysis technology can effectively recover Pb from Pb polluted Typha angustifolia biomass (Pb-TAB) and its recovery efficiency is not notably influenced by temperature. According to the economic evaluation, the biosorption-pyrolysis technology has great techno-economic advantages over the conventional biosorption-leaching technology. (C) 2011 Elsevier Ltd. All rights reserved.
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