六种杂草原料发酵产沼气的比较研究

Comparison on Biogas Production of Six Alien Invasive Weeds

为了实现杂草资源的合理化利用,文章以常见的水葫芦、飞机草、车前草、银胶菊、空心莲子草、三叶鬼针草等外来入侵植物为主要发酵原料,进行了六种杂草原料发酵产沼气的试验研究。结果表明,六种杂草原料发酵均能产生沼气,但车前草的发酵产气效果最好,产气率最大,银胶菊次之,水生植物空心莲子草和水葫芦居中,而飞机草和三叶鬼针草的发酵产气效果最差,其产气率大小顺序为:车前草>银胶菊>空心莲子草>水葫芦>飞机草>三叶鬼针草。结果说明外来入侵植物也能成为良好的沼气发酵原料。

In order to achieve the reasonable use of weeds resources, the experimental study of the six weeds, were contac- ted for biogas fermentation. The six weeds were common alien invasive plants namely water hyacinth, odorata, plantain, guayule, Alternanthera philoxeroides, Bidens pilosa. The results showed that the fermentation of all six weeds could produce biogas. Plantain had the best gas production rate, followed by guayu/e, aquatic plants Alteruanthera philoxeroides and water hyacinth were in the middle, Odorata and Bidenspilosa showed the lowest gas production. The gas production order from large to small are ： Plantain 〉 Guayule 〉 Alternanthera philoxeroides 〉 Water hyacinth 〉 Odorata 〉 Bidens pilosa. These results showed that alien invasive plants are also good raw material for biogas fermentation.