The complex bacteria able to degrade chlorinated phenols were enriched and isolated from the activated sludge sampled at the outlet of aeration tank of the WWTP of the Yangtse Petrochemical Company.
从扬子石化公司污水处理厂的曝气池出口处取活性污泥样品，经驯化、培养、分离得到能降解氯代酚类化合物的复合菌。
The aeration flotation process is a new application to the activated sludge processes. The final tank USES dissolved air flotation instead of sedimentation, and is combined with the aeration tank.
曝气气浮池是活性污泥法中的一种新型构筑物，它是以气浮代替沉淀，并与曝气池有机组合而成。
When the tank pressure reaches 305 psig, a mechanical air-cooled refrigeration unit is activated which cools the tank contents and thereby reduces the pressure to about 295 psig.
当容器压力达到305 ps ig时，启动机械空气冷却制冷设备，使容器内容物降温，从而压力降到约295 ps ig。
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