Horizontal subsurface flow wetlands for the treatment of a cheese production wastewater: kinetic studies

NOCETTI, E.; HADAD H.R.; MAINE, M.A.; MUFARREGE, M.M.; DI LUCA, G.A.; SANCHEZ, G.C.

Florianopolis

Conferencia; V Conferência Panamericana de Sistemas Wetlands para Tratamento e Melhoramento da Qualidade da Água e do 5º Simpósio Brasileiro sobre Aplicação de Wetlands Construídos no Tratamento de Águas Residuárias; 2021

The aim of this work was to select the most suitable macrophyte species and substrate using horizontal subsurface flow (HSSF) wetlands for the effluent treatment from a local cheese factory. A first-order model was applied to quantify the influence of plant species and substrates. Microcosms-scale HSSF wetlands were planted with Canna glauca or Typha domingensis. LECA and river stone were used as substrates. The fitted parameters of the modified first-order model k-C* allowed to demonstrate the effect of the plants in the treatment of the effluent. HSSF wetlands planted with C. glauca reached the lowest background concentration C* of TIN using both LECA and river stone. HSSF wetlands using river stones were faster than HSSF wetlands using LECA as substrate