正如违禁药品的情况一样，痕量的合法药物也通过了污水处理设备的过滤。
Much like illegal drugs, traces of pharmaceuticals often filter through traditional sewage-treatment processes.
用于废水处理和药品工业等。
为客户节约化学药品补充、用水量、能耗及废水处理的设置容量。
These save a lot for customers, such as chemical medicine, water, energy and waster water capacity.
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