Abstract：
A laboratory-scale mesophilic submerged anaerobic hybrid membrane bioreactor (An-HMBR) was operated for 270 days for the treatment of high-strength synthetic wastewater at different hydraulic retention times (HRTs) (3 days, 2 days, 1 day, and 0.5 days). Chemical oxygen demand (COD) removal efficiency of 92% was obtained with methane yield rate of 0.18 LCH4/g CODremoval at 1-day HRT. The results of lab scale reactor at 1-day HRT were utilized for upscaling and cost analysis. Cost analysis revealed that the total capital cost comprised tank system (48%), membrane cost (32%), screen and PUF sponge (5% each), PLCs (4%), liquid pumps (3%), and others (2%). The operational cost comprised chemical cost (46%), pumping energy (42%), and sludge disposal (12%). The results revealed that the tank and heating costs accounted for the largest fraction of the total life cycle cost for full-scale An-HMBR. The heating cost can be compensated by gas recovery. Sensitivity analysis revealed that the interest rates, influent flow, and membrane flux were the most crucial parameters which affected the total cost of An-HMBR.
摘要：
实验室规模的中温浸没式厌氧混合膜生物反应器（An-HMBR）运行270天，用于处理不同水力停留时间（HRT）的高强度合成废水（3天，2天,1天,和0.5天）。化学需氧量（COD）的去除效率为92％，在1天的HRT下甲烷产率为0.18LCH4/gCOD。在1天HRT下的实验室规模反应器的结果用于放大和成本分析。成本分析表明，总资本成本包括储罐系统(48%)，膜成本（32%），屏幕和PUF海绵（各5%），PLC（4%），液体泵（3%），其他（2%）。运营成本包括化学品成本(46%)，泵送能量(42%)，和污泥处置(12%)。结果表明，对于全尺寸An-HMBR，储罐和加热成本占总生命周期成本的最大部分。加热成本可以通过气体回收来补偿。敏感性分析表明，利率，进水流量,膜通量是影响An-HMBR总成本的最关键参数。
