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| Treatment of refractory berberine wastewater with anaerobic baffled reactor (ABR) |
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Abstract A four-compartment anaerobic baffled reactor (ABR) fed on berberine wastewater was run under a berberine concentration between 50 and 300mg/L. The start-up and operational performance (total 175 days, including the start-up of 80 days) of the ABR was studied at (32±1)℃. Inoculums taken from Northeast Pharmaceutical Wastewater Treatment Plant were acclimated. Microorganism possessed definite adaptability on berberine wastewater after 80 days’ cultivation of ABR sludge. Under the berberine concentration 120mg/L the performance of ABR was the best, while the concentrations of berberine and COD in every compartment tended to decrease gradually; the removal rates of berberine and COD reached about 95 and 70 percent, respectively. The study on characteristics of sludge showed that sludge in each compartment was reddish-brown and black which the average MLSS of each compartment was 24.06g/L, 24.76g/L, 27.76g/L, 6.4g/L, respectively.
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Received: 31 August 2010
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