Atypical removals of nitrogen and phosphorus with biochar-pyrite vertical flow constructed wetlands treating wastewater at low C/N ratio.

• Tác giả: Jo-Shu Chang, Hongliang Guo, Mingzhe Hu, Duu-Jong Lee, Xuetong Zhai
• Ngôn ngữ: eng
• Thông tin xuất bản: England : Bioresource technology , 2025
• Bộ sưu tập: NCBI
• ID: 136912

Tóm tắt

This study constructed five laboratory-scale vertical flow constructed wetlands (VFCWs) using different ratios of biochar and pyrite as substrates to treat wastewater with a low carbon-to-nitrogen (C/N) ratio. Biochar can release organic carbon to enhance heterotrophic denitrification and serve as an electron shuttle for denitrification, but it can also release phosphate, negatively impacting total phosphorus removal efficiency. Pyrite releases Fe