ABR-好氧颗粒污泥处理黄连素废水的启动研究
Start-up performance of hybrid ABR-aerobic granulation reactor for berberine wastewater treatment
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摘要: 实验研究了ABR-好氧颗粒污泥组合工艺处理黄连素制药废水的启动运行，通过分析发现，ABR装置在HRT为4 d，黄连素浓度为50 mg/L的运行方式下成功启动，反应器运行稳定后每个格室MLSS平均值分别为25 840、21 560、27 500和11 200 mg/L。以ABR出水为营养物，成功培养出粒径在2~10 mm，沉降速率为104~137 m/h，沉降性能优良的好氧颗粒污泥。该组合工艺在启动实验的末期，进水COD浓度为3 000~4 000 mg/L左右，出水COD浓度到达168.4~271 mg/L，系统总的去除率保持在90%～95%之间，表明ABR-好氧颗粒污泥组合工艺能够有效地处理黄连素制药废水。Abstract: The start-up of hybrid anaerobic baffled reactor (ABR)-aerobic granulation process for berberine wastewater treatment was studied. The results showed that ABR could start up successfully under the conditions of HRT being 4 days and influent berberine concentration being 50 mg/L. After stabilization， the average MLSS of each compartment in ABR was 25 840 mg/L，21 560 mg/L，27 500 mg/L，11 200 mg/L， respectively. Aerobic granules were cultivated by the effluent from ABR. The stable granules with sizes of 2~10 mm，and settling velocity of 104~137 m/h were obtained after 80 days operation. The SVI value decreased from 120 to 20.34 ml/g during the granulation. The settling velocity of granular sludge over 104 m/h indicated that it had an excellent settling ability. In the final stage of the start-up process， the hybrid system could acquire stable removal efficiencies of COD about 90%~95% with an average influent COD concentration of 3 000~4 000 mg/L，and an average effluent of 168.4~271 mg/L. All these have proved that hybrid ABR-aerobic granulation reactor can treat berberine wastewater effectively.
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Key words:
- ABR /
- aerobic granules /
- berberine /
- industrial wastewater /
- biological treatment
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