工程上所采用的处理工艺和方法对焦化废水的处理效果还不能令人满意，尤其是氨氮。
Traditional methods and technologies can not make a satisfied result, especially for ammonium-nitrogen removal.
工程上所采用的处理工艺和方法对焦化废水的处理效果还不能令人满意，尤其是氨氮。
Traditional methods and technologies can not make a satisfied result, especially for ammonium-nitrogen removal.
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