Environmental Research Institute, University College Cork, Cork, Ireland.
Waste Manag. 2013 Nov;33(11):2425-33. doi: 10.1016/j.wasman.2013.06.017. Epub 2013 Jul 11.
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 183LCH4/kgVS. For dried, washed and macerated Ulva a BMP of 250LCH4/kgVS 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.
浒苔（俗称海白菜）是一种绿色海藻，是绿潮或藻类大量繁殖的主要原因。绿潮是由农业和污水排放造成的氮素过剩导致浅海湾富营养化引起的。连续两年在西科克的 Argideen 河口采集了浒苔样本。在第一年，对浒苔进行了三种不同的处理/预处理，包括洗涤、萎蔫和干燥。对样品进行了生物甲烷潜力（BMP）测定。新鲜浒苔的生物甲烷产率为 183LCH4/kgVS。干燥、洗涤和粉碎后的浒苔的 BMP 达到 250LCH4/kgVS。西科克河口的资源足以提供 264 辆汽车全年的燃料。单一消化浒苔可能会有问题，因为其 C:N 比低，硫含量高。第二年，与奶牛粪浆进行了共消化试验。与单独消化浒苔和粪浆相比，这表明生物甲烷产量可能增加 17%。
