关键词：皂素生产废水；EM菌一活性污泥；混凝；COD去除率 [gap=5305]Key Words：saponin wastewater；EM—Activated sludge；coagulate；COD removal rate
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the COD removal rate COD去除率
nitrate and COD removal rate 硝酸盐氮和COD去除率
removal rate of COD cod的去除率
cod rate of removal cod去除率
the removal rate of cod cod的去除率
COD removal rate of the wastewater has not been reduced after 10time reuse of the extracting agent.
萃取后的络合相经碱解分离即可回收萃取剂，萃取剂循环使用10次，废水的COD去除率无下降趋势。
Main factors affecting COD removal rate were orderly aeration volume, aeration and settling duration.
影响cod去除率的最主要因素为曝气量，曝气时间、沉淀时间也有一定影响。
With COD removal rate as a reference, several magnetic coagulants used in restaurant waste water are systematically studied.
以COD去除率作性能参数，考察了几种复合磁絮凝剂在高、低二种浓度餐饮废水中的絮凝效果。
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