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Evaluating the effect of hydraulic retention time and ethanol dosing on the nitrate removal performance of pilot-scale woodchip bioreactors at a municipal wastewater land application site
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DOI：10.1016/j.ecoleng.2026.108042.png)
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Abstract
En 中文
• Woodchip bioreactors effectively treated drainage from a municipal land treatment system. • 50% removal efficiency required 8 h (warm season) and 12.5 h (cool season) HRT. • Ethanol dosing increased removal efficiency from 27% to 93% at 6.6 h HRT in cool conditions. • Ethanol dosing increased removal rate from 4.2 to 14.3 g N/m3/day. • Site-specific optimal C:N ratio dosing (0.75:1) maximised removal while limiting sulphate reduction.
Keywords:
Woodchip bioreactor
Wastewater
Land treatment
Carbon dosing
Nitrate
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