This is accomplished by installing an equalization tank as part of the pretreatment step.
通过安装均衡池作为预处理可以达到上述效果。
Firstly, collection well, equalization tank, oil & grease trap were used as pretreatment.
分别利用集水井、调节池、反应除油池作预处理；
Firstly, collection well, equalization tank, oil & grease trap were used as pretreatment.
分别利用集水井、调节池、反应除油池作预处理；
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