The key pollution indicators are ammonia nitrogen and BOD. 主要污染指標是氨氮和生化需氧量。
The performances of different powdered zeolites for removing low-concentration ammonia nitrogen from water were compared through batch experiments. 通過靜態試驗比較了不同產地粉末狀沸石去除水中低濃度氨氮的性能。
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