The Impact of Berberine Pharmaceutical Wastewater on Aerobic Granules Formation: Change of Granules’ Size

As important parameters in the characterization of aerobic granulation, shape and average diameter were related to substrates. The previous studies disclosed that morphology change granules was result growth relatively strong hydrodynamic shear force. No further exploration size distribution has been conducted. To better understand impact toxic compounds on granules’ during their formation, properties traced over 81 days 3 sequencing batch reactors fed with acetate berberine wastewater, especially particle distribution. results showed cultivated by simulated wastewater (R1), (R2), effluent from an anaerobic baffled reactor (ABR) which industrial (R3). exhibited different COD removal efficiencies, MLSS MLVSS values affected substrates order R1 > R2 R3. However, SVI SOUR, several factors, more complicated results. had lowest microbial activity (SOUR), while R3 settling ability among three kinds granules. For influent compositions, granulation process displayed a three-stage separately. Compared stable operation period independence other periods.The range 0.3–1.0 µm occupied 77.0%, 67.0%, 35.7% volume for R1, R2, R3, respectively. biomass less than 0.3 59.1% components substrate great influence granules, not only but also