水解酸化_+A^2O工艺处理混合化工废水运行中的问题与对策

PROBLEMS AND PROVISIONS IN OPERATION OF MIXED CHEMICAL WASTEWATER TREATMENT BY HYDROLYSIS ACIDIFICATION_+A^2O PROCESS

镇江市新区第二污水厂采用水解酸化+A2O工艺。针对此工艺处理混合化工废水中出现了进水水质水量波动较大、进水碳源不足、出水色度较大、脱水机冲洗水SS较多、水解酸化池运行效果不佳、DO控制困难等问题,进行实践调整和理论分析,提出了一系列有效的对策,保证了该污水厂的稳定运行。

The hydrolysis acidification＋A20 process was applied in Zhenjiang district second wastewater treatment plant （WWTP）. To solve problems such as the volatile influent quality and quantity, insufficient influent carbon, high effluent chromaticity, high SS of dehydrator flushing wastewater, bad running effect of hydrolysis acidification pool, the difficult to control DO, the practice adjustment and theoretical analysis were carried on, a series of effective measures raised to ensure the stable operation of the WWTP.