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生化需氧量

名词解释题

2022-06-16 00:24

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正确答案

是指有溶解氧的条件下，需氧微生物在分解水中有机物的生物化学氧化过程中所消耗的溶解氧量，以ρ(O₂)表示，单位为mg/L。它是以水样在一定温度(20℃)下，于密闭容器中保存一定时间(一般为5天)后，溶解氧的减少量来表示，它包括了氧化硫化物、亚铁等无机还原性物质所消耗的氧量。

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标签： 01652卫生检验污水处理设施运营资质培训国家开放大学(农村环境保护) 环境生物学生物学环境科学概论环境科学技术及资源科学技术环保气象安全技能考试环保企业从业人员培训

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