Study on the Effect of Moved Wastewater on Oxygen Release from Roots and Wastewater Treatment

Abstract:

Constructed wetlands (CW) have been gaining increasing international interest and application because of their unique purification and ecology. Numerous studies have reported that plants or hydraulics influence pollutants removal in CW but the reasons and the relationship between them remain poorly known. This study experimentally investigated the effect of moved wastewater on oxygen release from roots and pollutants removal. Experimental results have demonstrated that more oxygen was released from roots of wetland plants with higher hydraulic loading rate. substrate water DO levels and pollutants removal are accordingly followed by the same pattern as dischargeable oxygen release rate which exhibits diurnal fluctuations. Moved wastewater in CW will stimulate root oxygen release, and stimulate organics and nitrogen removal by increasing oxygen supply for the processes of aerobic degradation and nitrification.

• Periodical: Applied Mechanics and Materials (Volumes 587-589)
• Pages: 648-652
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.587-589.648
• Online since: July 2014
• Authors: Chan Dong*, Ying Hao Huang, Shun Cai Wang
• Keywords: Constructed Wetland, Moved Wastewater, Oxygen, Vegetation

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