英语词汇“primary wastewater treatment”的翻译、意思、用法、释义-英汉经管词典

单词	primary wastewater treatment
释义	primary wastewater treatment Definition First stage in which screens, sedimentation tanks, filters, and apparatus for skimming and chlorination is employed to remove material that floats or will settle, and pathogens that account for about 30 percent of biological oxygen demand (BOD).
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