蓝藻泥干发酵潜力研究

探讨藻泥干式发酵资源化利用的潜力。以太湖脱水藻泥为原料,进行干式厌氧发酵产沼气试验,分析蓝藻干式发酵的可行性。结果表明,接种物与蓝藻体积比为3∶7时,在恒定温度为35℃的发酵环境中发酵42d,蓝藻TS产气潜力为352.31mL/g,VS产气潜力为381.59mL/g,产气高峰时沼气中甲烷的含量为67.25%,蓝藻TS利用率为50.15%,VS利用率为52.39%,TOC利用率为53.86%。蓝藻泥可以作为发酵原料直接进行干式发酵。

Study on Potentiality of Blue Algae sludge's Dry Fermentation

To explore the potential of algae sludge’s resource utilization by dry anaerobic fermentation,with water removal algae sludge as test material,the experiment of producing biogas by anaerobic fermentation was carried out and the possibility of algae sludge ’s dry fermentation was analyzed.The result showed as follows:the volume ratio of inoculum to blue algae was 3∶7,the anaerobic fermentation 1asted for 42 days at the constant temperature of 35℃,and the potential of producing biogas of TS and VS was 352.31mL/g and 381.59mL/g,respectively;the content of methane in the biogas was 67.25% in gas production fruitful periods;the utilization of TS、VS and TOC was 50.15%,52.39% and 53.86%,respectively.Blue algae sludge can be used directly as dry anaerobic fermentation’s material.