在高频进料系统中，研究了负荷率和温度对食物垃圾和废活性污泥厌氧共消化的影响，特别关注稳定性和效率。
Effects of loading rate and temperature on anaerobic co-digestion of food waste and waste activated sludge in a high frequency feeding system, looking in particular at stability and efficiency.
机构信息
International Science and Technology Cooperation Center for Urban Alternative Water Resources Development; Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE; Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi; Key Laboratory of Environmental Engineering, Shaanxi; Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, China.
International Science and Technology Cooperation Center for Urban Alternative Water Resources Development; Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE; Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi; Key Laboratory of Environmental Engineering, Shaanxi; Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, China.
出版信息
Bioresour Technol. 2017 Aug;237:231-239. doi: 10.1016/j.biortech.2017.02.045. Epub 2017 Feb 24.
A continuously stirred tank reactor (CSTR) with a high feeding frequency (HFF) of once every 15min was employed in order to ease the loading shock frequently occurred in digester with a low feeding frequency. The effects of the organic loading rate (OLR) and temperature on the co-digestion of food waste and waste activated sludge was evaluated in a 302-day long-term experiment. Due to the high hydrolysis rate, the maximum CH yield in a thermophilic reactor was 407mL CH/gVS, a value that was significantly higher than the 350mL CH/gVS that occurred in a mesophilic reactor. Although the alkalinity declined when HRT was shorted than 10d, caused by the decrease of conversion ratio from protein to ammonium, the increase of specific methanogenic activity helped HFF system to achieve stable performance at an OLR of 11.2 (HRT 7.5d) and 30.2gVS/L/d (HRT 3d) under mesophilic and thermophilic conditions, respectively.
采用高进料频率（HFF），每 15 分钟进料一次的连续搅拌槽式反应器（CSTR），以减轻进料频率低的消化器中经常出现的进料冲击。在一个长达 302 天的长期实验中，评估了有机负荷率（OLR）和温度对厨余垃圾和废活性污泥共消化的影响。由于水解率高，在高温反应器中最大的 CH 产率为 407mL CH/gVS，明显高于中温反应器中 350mL CH/gVS 的产率。尽管当 HRT 短于 10d 时，由于蛋白质转化为铵的转化率下降，碱度会下降，但特定产甲烷活性的增加有助于 HFF 系统在中温和高温条件下分别在 11.2（HRT 7.5d）和 30.2gVS/L/d（HRT 3d）的 OLR 下实现稳定的性能。
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