Environmental Science
6 years ago

Vertical flow filter boosts purification efficiency in constructed wetland system.

Water Science & Technology
The effect of a vertical flow filter bed on a hybrid constructed wetland system
Alar Noorvee, Elar Põldvere, Ülo Mander

Paper Summary

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A study in South Estonia looked at improving a constructed wetland system's ability to clean wastewater. They added a vertical filter to increase oxygen levels and found it helped remove pollutants like BOD7 and NH4-N better. However, the removal of Ptot decreased. Overall, the system's efficiency improved, but more work is needed to meet standards in winter.