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NH+4-N

NH+4-N

NH+4-N

NH+4-N

1

An experiment was carried out to investigate NH 4 +N transformation and transport under drip irrigation in greenhouse .

在试验基础上，分析讨论了温室滴灌条件下铵态氮的转化迁移规律。

3

The results show that VTBR with anaerobic aerobic technique can remove NH + 4-N and COD from oil refinery wastewater efficiently .

结果表明，VTBR 生化反应器采用缺氧 —好氧工艺流程能有效地去除石油废水中的氨氮和 COD 。

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