摘要：
为解决河南某化工厂硝化棉高浓度有机废水处理困难问题，对串联ASBR反应器处理该废水的启动过程进行了研究。结果表明：控制水温为35℃，将进水COD从2 000 mg/L逐步提高到20 000 mg/L，HRT由10 d缩短为8 d，经过146 d，COD去除率可稳定在40%以上，实现反应器成功启动。启动过程中，出水VFA大部分保持在130mg/L以下，平均出水pH为7.2。反应器启动末期，出水B/C高达0.72，显著改善了废水的可生化性，为后续处理提供了有利条件。
关键词:
串联ASBR,
硝化棉高浓度有机废水,
启动,
可生化性
Abstract:
The start-up process of a series ASBR reactor is studied for treating high-concentration organic wastewater from nitrocellulose in a chemical plant in Henan. The results show that when the water temperature is 35℃, the hydraulic retention time reduces from 10 days to 8 days, and the influent COD increases from 2 000 mg/L to 20 000 mg/L, the COD removal rate of the series ASBR is more than 40% after 146 days, realizing a successful start-up of the reactor. During the start-up process, most of the effluent VFA concentration is kept below 130 mg/L, and the average effluent pH is 7.2. At the end of the reactor start-up period, the B/C value of the effluent is as high as 0.72, which significantly improves the biodegradability of nitrocellulose wastewater, and provides favorable conditions for subsequent processing.
Key words:
series ASBR,
nitrocellulose high-concentration organic wastewater,
start-up,
biodegradability
中图分类号:
李福勤, 文兴, 赵桂峰, 崔燚. 串联ASBR处理硝化棉高浓度有机废水的启动试验研究[J]. 工业水处理, 2019, 39(10): 54-58.
Fuqin Li, Xing Wen, Guifeng Zhao, Yi Cui. Start-up of series ASBR in the treatment of high-concentration organic wastewater from nitrocellulose[J]. Industrial Water Treatment, 2019, 39(10): 54-58.