Department of Environmental Technologies, University of Cádiz, Spain.
Department of Environmental Technologies, University of Cádiz, Spain.
Bioresour Technol. 2014 Feb;154:305-12. doi: 10.1016/j.biortech.2013.12.071. Epub 2013 Dec 22.
The acclimatization and performance study of lixiviation of sugar beet pulp are carried out in upflow anaerobic fixed bed reactor in thermophilic range of temperature (55°C). Several hydraulic retention time is conducted (11, 8, 6, 4, 2, and 1.5 days). The performance study showed that Chemical Oxygen Demand removal efficiency is 90% for 6 days-HRT. While COD removal efficiency was reduced within the range of 74.3% and 59.4% in others HRT. Organic loading rates greater than 10 kg COD/m(3)d in influent, (2 days-HRT), produces a destabilization of the process due to total acidity accumulation in reactors although is the HRT with highest methane production. The results showed that an increase in OLR was directly correlated with active biomass inside reactor but not with the amount in microbial community. The bacterial concentration inside the reactor is strongly influenced by the content of microorganisms in the lixiviation of sugar beet pulp.
在中温范围（55°C）下，采用上流式厌氧固定床反应器对甜菜浆浸出物的驯化和性能进行了研究。进行了几种水力停留时间（11、8、6、4、2 和 1.5 天）的实验。性能研究表明，6 天 HRT 时 COD 去除效率为 90%。而在其他 HRT 条件下，COD 去除效率在 74.3%至 59.4%范围内降低。进水有机负荷率大于 10 kg COD/m(3)d（2 天 HRT），由于反应器中总酸度的积累，导致过程不稳定，尽管这是甲烷产量最高的 HRT。结果表明，OLR 的增加与反应器内活性生物量直接相关，但与微生物群落的数量无关。反应器内的细菌浓度受甜菜浆浸出物中微生物含量的强烈影响。
