制药废水改造工程调试实例

某制药企业污水处理站改造工程在调试过程中,根据工艺条件,结合进水水质特点,编制合理调试方案,分段培养污泥,前段生化系统利用储存的高浓度废水和原剩余污泥培养污泥,强化对高浓度废水的适应性,后段生化系统利用原剩余污泥接种,同步增加污泥量。7 d闷曝后,两段生化系统SV均达到25%以上,高浓度废水进水后,前段生化系统显示较强的适应性,满负荷进水3 d后污泥开始恢复增殖,7 d后前段SV达到了60%左右,后段SV稳定在20%,14 d后出水COD浓度逐步稳定低于150 mg/L,调试完成。

During the commissioning process of a sewage treatment station renovation project in a pharmaceutical company,a reasonable commissioning plan was prepared according to the process conditions and combined with the characteristics of the influent water quality,and the sludge was cultivated in two sections.The former section used the stored high-concentration wastewater and the original excess sludge to cultivate sludge and strengthen the adaptability to the high concentration wastewater.The latter section used the original excess sludge to inoculate and increase the sludge volume simultaneously.After 7 days of aeration,SV of the two biochemical systems reached more than 25%.After the high-concentration wastewater entered,the former section showed strong adaptability.After 3 days,sludge resumed to proliferate,after 7 days,SV of the former section reached about 60%,and SV of the latter section was stable at 20%.After 14 days,the effluent COD stabilized less than 150 mg/L gradually,the debugging was completed.