Environmental Science
8 years ago

Vertical Wetlands Cleanse Water Faster, Boosting Efficiencies and Reducing Pollution

Nongye huanjing kexue xuebao
Changes of Pollutants Concentration at Various Depths in Vertical Flow Constructed Wetland
Guangming Tian

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The researchers studied how pollutants change in vertical flow constructed wetlands treating sewage at different rates. They set up sampling locations at different depths and found that CODCr concentration decreased as water flowed through the wetlands. Most CODCr was removed at shallow depths. The concentration of NH4+-N, TN, and NO3--N varied between wetlands with different structures and flow rates, affecting nitrification and denitrification.