Batch and semi-continuous anaerobic digestion of Palmaria palmata: Comparison with Saccharina latissima and inhibition studies
Batch and semi-continuous anaerobic digestion of Palmaria palmata: Comparison with Saccharina latissima and inhibition studies
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DOI：
10.1016/j.cej.2012.08.010
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发表时间：
2012-10-15
影响因子：
15.1
通讯作者：
Dumas, C.
中科院分区：
文献类型：
--
作者：
Jard, G.;Jackowiak, D.;Dumas, C.
大型藻类是生物质资源，可以代表通过甲烷生产来生产可再生能源的有价值的原料。为了使厌氧消化的原料来源多样化，对新型大型藻类进行了研究。由于其挥发性固体含量高，阳离子含量低，因此，藻类Palmaria palmata的组合物被认为是厌氧消化的良好基质。本研究在间歇式和半连续式两种反应器中，对掌叶侧耳和宽叶侧耳进行了比较研究。掌叶马勃比掌叶马勃具有更好的甲烷产量。latissima以分批（279 mL CH 4 g（vs）（-1）vs 210 mL CH 4 g（vs）（-1））或在半连续反应器（320 mL CH 4 g（vs）（-1）vs 270 mL CH 4 g（vs）（-1））中。在半连续实验中，在182天的操作之后，反应器性能例如甲烷产率的降低发生在高于约408 g（vs）kgv（ss）（-1）d（-1）的比负荷率。在半连续模式下观察到的钾和钠的抑制作用通过分批实验得到证实。当钾和钠的浓度相当于在半连续反应器故障时观察到的浓度（钾为13.0 g L-1，钠为4.1 g L-1）时，初始甲烷生产率降低了53%。半连续式厌氧消化系统的低性能主要是由于厌氧消化系统的低能耗造成的。latissima比P. palmata获得的，可能会增加更高的积累的阳离子。(C)2012 Elsevier B. V.保留所有权利。
Macroalgae are biomass resources that can represent a valuable feedstock to produce renewable energy via methane production. In order to diversify the feedstock of raw materials for anaerobic digestion new kind of macroalgae are investigated. Composition of the algae Palmaria palmata is suggested to be a good substrate for anaerobic digestion due to its high content in volatile solids and low content of cations. In this study. P. palmata was investigated and compared to Saccharina latissima for biogas production in both batch and semi-continuous reactors. P. palmata permitted a better production of methane than for S. latissima either in batch (279 mL CH4 g(vs)(-1) vs 210 mL CH4 g(vs)(-1)) or in semi-continuous reactor (320 ml CH4 g(vs)(-1) 270 mL CH4 g(vs)(-1)). In semi-continuous experiments, after 182 days of operation, a decrease in reactor performances such as methane yields occurred above a specific loading rate in the order of 408 g(vs) kgv(ss)(-1) d(-1). Inhibition by potassium and sodium observed in semi-continuous mode was confirmed by batch experiments. The initial methane production rate was reduced by 53% when potassium and sodium concentrations were equivalent to the ones observed at semi-continuous reactor failure (13.0 g L-1 for potassium and 4.1 g L-1 for sodium). The lower performances of semi-continuous anaerobic digestion of S. latissima than the ones obtained with P. palmata, may be increased by a higher accumulation of cations. (C) 2012 Elsevier B.V. All rights reserved.