Countercurrent fermentation of rice straw and chicken manure to car-boxylic acids was performed using a mixed culture of marine mesophilic microorganisms. To increase the digestibility of the biomass, rice straw, and chicken manure were pretreated with 0.1 g Ca(OH)_2/g biomass. Fermentation was performed for 80% rice straw and 20% chicken manure at various volatile solid loading rates (VSLR) and liquid residence times (LRT). The highest acid productivity of 1.69 g/(L·d) occurred at a total acid concentration of 32.4 g/L. The highest conversion (0.69 g VS digested/g VS fed) and yield (0.29 g total acids/g VS fed) were at a total acid concentration of 25 g/L. A Continuum Particle Distribution Model of the process predicted the experimental total acid concentration and conversion results with an average error of 6.41% and 6.15%, respectively. Results show how total acid concentrations, conversions, and yields vary with VSLR and LRT in the MixAlco process.
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机译：使用海洋化学微生物的混合培养物进行稻草和鸡肉粪肥的稻草和鸡肉粪肥的逆流发酵。为了提高生物质，稻草和鸡粪的消化率，用0.1g Ca（OH）_2 / g生物质预处理。在各种挥发性固体加载率（VSLR）和液体停留时间（LRT）下对80％稻草和20％鸡肉粪进行发酵进行发酵。最高酸生产率为1.69g /（l·d），以32.4g / L的总酸浓度发生。最高转化率（0.69g VS消化/ g vs喂养）和产率（0.29g总酸/ G vs喂养）以25g / L的总酸浓度。该方法的连续颗粒分布模型预测了实验总酸浓度和转化率，平均误差分别为6.41％和6.15％。结果表明，在Mixalco工艺中，如何用VSLR和LRT对总酸浓度，转换和产率不同。
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