水葫芦生物降解动力学实验研究

以富含纤维素的水葫芦粉末为发酵底物,经驯化的厌氧污泥为接种物,在中温条件下(34℃)进行了探索性实验。计算了序批式厌氧发酵过程的主要生物动力学参数。给出了发酵过程的比基质利用常数K=0.058d-1和基于底物投料量P(以VSS计,g/L)与接种污泥量X(以MLVSS计,g/L)的水解速率方程r=1.40P+20.07X-53.74。实验中测定所产生物气中最高甲烷含量为59%。

Study on Degradation Kinetics of Eichhornia Crassipes

This article used E.Crassipes powder which is rich in cellulose for the fermentation substrate, and acclimated anaerobic sludge for supplement. And in the medium temperature conditions （34 ℃） carried out exploratory experiments. The main bio-kinetic parameters of the sequence batch anaerobic fermentation process was calculated. The results showed the related substrate utilization rate K=0.058 d -1 and the hydrolysis rate equation based on substrate quantity P （VSS, g/L） and supplement sludge quantity X （MLVSS, g/L）. It also determined the highest content of methane in the biogas is 59% during the experiment.