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

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

Florianópolis

Conferencia; 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

Grupo de Estudos em Saneamento Descentralizado, Universidade Federal de Santa Catariana.

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.