八种常见水生杂草的生物能源潜力

S.A. Abbasi, P.C. Nipaney, G.D. Schaumberg
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引用次数: 76

摘要

对8种常见的水草进行了厌氧消化,产生甲烷。这些水草包括:沙刺草、水螅、睡莲、小针叶、角翅草、荆刺草、莎草和网状水草。杂草的碳氮比(C/N)、碳磷比(C/P)和挥发性固形物(VS)含量变化较大。这些因素与甲烷产量之间没有明显的变化趋势;讨论了可能的原因。计算出了杂草作物单位面积杂草的能势。萨尔维尼亚的天然林分,例如在本研究中使用的林分,将产生108千卡的能量(甲烷),每年−1。
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Bioenergy potential of eight common aquatic weeds

Eight common aquatic weeds Salvinia molesta, Hydrilla verticillata, Nymphaea stellata, Azolla pinnata, Ceratopteris sp. Scirpus sp. Cyperus sp. and Utricularia reticulata were digested anaerobically to produce methane. The carbon to nitrogen (C/N) ratio, carbon to phosphorus (C/P) ratio, and the volatile solids (VS) content of the weeds varied widely. No trend between these factors and the methane yield was discernable; the possible reasons are discussed.

The energy potential of the weeds per unit area of the weed crop was worked out. Natural stands of salvinia, such as the one employed in the present investigation, would yield energy (methane) of the order of 108 Kcal ha−1 year−1.

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