Impact of intermittent feeding on polishing of micropollutants by moving bed biofilm reactors (MBBR)
نویسندگان
چکیده
Moving bed biofilm reactors (MBBRs) were placed at two wastewater treatment plants, where they constantly fed with effluent and intermittently primary wastewater. Each reactor was subjected to different feast/famine periods flow rates of wastewater, thus the organic nutrient loads (chemical oxygen demand(COD), ammonium(NH4-N)) resulted in feast-famine conditions applied biomass. In batch experiments, this study investigated effects various on biodegradation micropollutants by MBBRs as an polishing step. Rate constants micropollutant removals found be positively correlated load total COD NH4-N, indicating that higher favourable for growth degraders these MBBRs. constant atenolol five times when biomass highest NH4-N than it lowest load. For diclofenac, mycophenolic acid iohexol, their maximum rate obtained feeding approximately 570 mgCOD/d 40?60 mgNH4-N/d respectively. This also supports concept co-metabolism (rather competition inhibition or catabolic repression) plays important role
منابع مشابه
Removal of micropollutants in Moving Bed Biofilm reactors (MBBRs) ‐Microbial‐diversity‐and‐functional‐relationships‐
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ژورنال
عنوان ژورنال: Journal of Hazardous Materials
سال: 2021
ISSN: ['1873-3336', '0304-3894']
DOI: https://doi.org/10.1016/j.jhazmat.2020.123536