Sayedin Farid, Kermanshahi-Pour Azadeh, He Sophia Quan
Biorefining and Remediation Laboratory, Department of Process Engineering and Applied Science, Dalhousie University, Halifax, NS, Canada.
Biorefining and Remediation Laboratory, Department of Process Engineering and Applied Science, Dalhousie University, Halifax, NS, Canada.
Waste Manag. 2018 Aug;78:541-552. doi: 10.1016/j.wasman.2018.06.015. Epub 2018 Jun 23.
In this study, the performance of a conventional anaerobic baffled reactor (ABR) and a novel configuration of hybrid ABR for the treatment of thin stillage was evaluated. The hybrid ABR achieved the chemical oxygen demand (COD) removal, sulfate removal and methane yield of 97-94%, 94-97% and 294-310 mL CH g COD, respectively at organic loading rate (OLR) of 1-3.5 kg COD m d. On the other hand, the value of COD and sulfate removal and methane yield for the conventional ABR were 75-94%, 67-76% and 140-240 mL CH g COD, respectively at OLR range of 1.1-1.8 kg COD m d. The enhanced performance and robustness of the novel ABR was demonstrated to be the result of incorporation of solid/liquid/gas separators into the configuration of the conventional ABR, leading to reduced biomass washout, higher solid retention time and significantly improved phase separation.
在本研究中，评估了传统厌氧折流板反应器（ABR）和新型混合ABR处理稀酒糟的性能。在有机负荷率（OLR）为1-3.5 kg COD/m³·d时，混合ABR的化学需氧量（COD）去除率、硫酸盐去除率和甲烷产率分别达到97-94%、94-97%和294-310 mL CH₄/g COD。另一方面，在OLR范围为1.1-1.8 kg COD/m³·d时，传统ABR的COD和硫酸盐去除率以及甲烷产率分别为75-94%、67-76%和140-240 mL CH₄/g COD。新型ABR性能的增强和稳定性被证明是由于在传统ABR结构中加入了固/液/气分离器，从而减少了生物质流失，提高了固体停留时间，并显著改善了相分离。
