... nitrogen dioxide concentration 二氧化氮浓度 nitrogen phosphorus concentration 氮磷浓度 nitrogen source concentration 氮源浓度 ...
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It could be available to control the concentration of nitrogen and phosphorus and the hydraulic retention time for algae bloom preventing.
控制氮磷浓度和水力停留时间是预防水华发生的有效措施。
From the investigations, lack of nitrogen and phosphorus, oxygen deficiency in aeration basin of SBR, high concentration of sulfide in the wastewater is found.
调查分析得知该厂印染废水存在氮、磷缺乏现象，SBR曝气池存在缺氧现象，废水中硫化物含量较高。
Change of phosphorus and nitrogen concentration in the leakage loss.
渗漏流失氮磷浓度的变化。
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