CODs removal of domestic wastewater by solid plastic wastes materials: influence of organic loading rate

Abstract:

Polyethylene terephthalate from beverage bottles, and polypropylene from plastic of sacks, collected from recycling plants were tested as biofilm support in aerobic submerged fixed biofilm reactors, fed with real domestic wastewater. Soluble chemical oxygen demand (CODs) and volatile suspended solids (VSS) were constantly monitored while organic loading rate (OLR) was varied between 0.30 to 5.00 g CODs m-2 d-1. CODs removal efficiencies were up to 90% for OLR under 1.00 g CODs m-2d-1 and 80% for OLRs between 1.0 to 2.50 g CODs m-2d-1, also efficiencies down to 70% were achieved for OLR between 4 to 5 g CODs m-2d-1. Total attached biomass was 1.35 g VSS m-2 for PP and 1.023 g VSS m-2 for PET. In a practical approach, the recycled materials PET and PP could be used as support materials in AFBR for urban wastewater treatment.

Año de publicación:

2018

Keywords:

Fuente:

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