将新鲜水葫芦破碎成0.3 cm左右的颗粒与混合沼液按不同的比例接种,配制成3 000g的混合物在室温条件下进行批量厌氧发酵实验.研究其产气特性以及原料、能量利用途径等,提出基于水葫芦为唯一底料的厌氧发酵技术.结果表明,新鲜水葫芦厌氧发酵的产气潜力和独立发酵能力高于其他常见发酵原料,是规模化沼气工程的理想原料.高浓度发酵可以提高产气效率,但过程易出现酸化严重现象,造成碳紊的浪费和沼气产能潜力的降低.%In this study, fresh hyacinth was cut up to 0. 3 cm pieces and then mixed with fermentation liquor with different ratios for batch fermentation experiments(25 ℃). The total weight of the mixture was 3 000g. Biogas characteristics, raw materials, energy utilization were studied and analyzed to give the theoretical foundation of anaerobic fermentation of water hyacinth. The results indicated that the average biogas yield potential of fresh water hyacinth is higher than other common fermentation materials, so it was chose as the ideal materials for large scale biogas project. Higher concentrations of fermentation could increase the gas efficiency, but it is easy to arising acidification process which lead to waste of carbon and lower potential of biogas energy production.
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