半工业规模的AnMBR工厂运行了600天以上,以评估该技术在环境温度(范围为10至27°C)下的长期运行,可变水力停留时间(HRT)(25至41h)和进水负荷(大部分在15至45kgCOD·d-1之间)。从全面的污水处理厂的预处理中,向该工厂注入了富含硫酸盐的高负荷市政废水。结果表明,AnMBR作为废水处理的核心技术具有良好的性能,在长期运行中获得平均87.2±6.1%的COD去除率,40%的数据超过90%。考虑了五个时期来评估HRT的效果,进水特性,COD/SO42--S比值和温度对生物进程的影响。在选定的期间,甲烷产量从70.2±36.0到169.0±95.1STPLCH4·kg-1CODinf,根据进水硫酸盐浓度,与传统的活性污泥系统相比,浪费污泥的产量减少了8%至42%。流出物表现出显著的营养回收潜力。温度,HRT,SRT和进水COD/SO42--S比率被证实是最大化AnMBR性能时要考虑的关键参数。
A semi-industrial scale AnMBR plant was operated for more than 600 days to evaluate the long-term operation of this technology at ambient temperature (ranging from 10 to 27 ○C), variable hydraulic retention times (HRT) (from 25 to 41 h) and influent loads (mostly between 15 and 45 kg COD·d-1). The plant was fed with sulfate-rich high-loaded municipal wastewater from the pre-treatment of a full-scale WWTP. The results showed promising AnMBR performance as the core technology for wastewater treatment, obtaining an average 87.2 ± 6.1 % COD removal during long-term operation, with 40 % of the data over 90%. Five periods were considered to evaluate the effect of HRT, influent characteristics, COD/SO42--S ratio and temperature on the biological process. In the selected periods, methane yields varied from 70.2±36.0 to 169.0±95.1 STP L CH4·kg-1 CODinf, depending on the influent sulfate concentration, and wasting sludge production was reduced by between 8 % and 42 % compared to conventional activated sludge systems. The effluent exhibited a significant nutrient recovery potential. Temperature, HRT, SRT and influent COD/SO42--S ratio were corroborated as crucial parameters to consider in maximizing AnMBR performance.