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

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

Florianópolis

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

Universidade Federal de Santa Catariana

The aim of this work was to select the most suitable macrophyte species and substrate using horizontal subsurfaceflow (HSSF) wetlands for the effluent treatment from a local cheese factory. A first-order model was applied to quantify theinfluence of plant species and substrates. Microcosms-scale HSSF wetlands were planted with Canna glauca or Typhadomingensis. 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 reachedthe lowest background concentration C* of TIN using both LECA and river stone. HSSF wetlands using river stones werefaster than HSSF wetlands using LECA as substrate