The potential of algae blooms to produce renewable gaseous fuel
The potential of algae blooms to produce renewable gaseous fuel
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DOI：
10.1016/j.wasman.2013.06.017
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发表时间：
2013-11-01
期刊：
影响因子：
8.1
通讯作者：
Murphy, J. D.
中科院分区：
文献类型：
--
作者：
Allen, E.;Browne, J.;Murphy, J. D.
石莼（俗称海石莼）是一种绿色海藻，在绿色潮汐或藻类水华中占主导地位。绿色潮汐是由农业和污水排放口过量的氮引起的，导致浅水河口的富营养化。U.莴苣是连续两年从西科克的Argioles河口采集的。在第1年，对石莼进行了三种不同工艺/预处理的组合。这些包括洗涤，萎蔫和干燥。对样品进行生物甲烷潜力（BMP）测定。新鲜石莼的生物甲烷产率为183 L CH 4/kg VS。对于干燥、洗涤和浸渍的石莼，实现了250 L CH 4/kg VS的BMP。来自西科克河口的资源被证明足以为264辆汽车提供全年的燃料。石莼的单一消化可能有问题; C：N比率低，硫含量高。在第2年进行了与乳浆的共消化试验。这些表明，与石莼和泥浆的单一消化相比，生物甲烷产量可能增加17%。(C)2013爱思唯尔有限公司保留所有权利。
Ulva lactuca (commonly known as sea letuce) is a green sea weed which dominates Green Tides or algae blooms. Green Tides are caused by excess nitrogen from agriculture and sewage outfalls resulting in eutrophication in shallow estuaries. Samples of U. lactuca were taken from the Argideen estuary in West Cork on two consecutive years. In year 1 a combination of three different processes/pretreatments were carried out on the Ulva. These include washing, wilting and drying. Biomethane potential (BMP) assays were carried out on the samples. Fresh Ulva has a biomethane yield of 183 L CH4/kg VS. For dried, washed and macerated Ulva a BMP of 250 L CH4/kg VS was achieved. The resource from the estuary in West Cork was shown to be sufficient to provide fuel to 264 cars on a year round basis. Mono-digestion of Ulva may be problematic; the C:N ratio is low and the sulphur content is high. In year 2 co-digestion trials with dairy slurry were carried out. These indicate a potential increase in biomethane output by 17% as compared to mono-digestion of Ulva and slurry. (C) 2013 Elsevier Ltd. All rights reserved.