Recycling of treated effluents enhances removal of total nitrogen in vertical flow constructed wetlands.

Abstract

It is widely documented that vertical flow constructed wetlands are efficient for producing well nitrified effluent. However, because the treated effluent is oxygen saturated and has a low availability of carbon, the removal of total nitrogen is limited. We hypothesize that by recycling the fully nitrified effluent to the pretreatment unit and the… (More)

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