O sistema de escala laboratorial foi operado com efluente vinícola em diferentes concentrações de DQO (500-ġ000 mg.L-1 Etapa I, II e III e 1000-2000 mg.L-1 Etapa IV e V) e foi variado também seu TDH (16h Etapas III e IV 18h Etapas II e V e 24h Etapa I). O presente estudo tem por finalidade analisar o tratamento de efluente vinícola em sistema combinado de um reator anaeróbio de manta de lodo e fluxo ascendente (Upflow Anaerobic Sludge Blanket - UASB) seguido de um filtro biológico aeróbio submerso (FBAS) na remoção de matéria carbonácea, nitrogenada, fosforada e de compostos fenólicos totais para enquadramento nos padrões ambientais de lançamento local. The aerated cells are susceptible to clogging, but we solved this problem with a ‘hoist-sack solution’ and/or treatment with a H2O2 solution that can be implemented easily without majorly impeding normal operation. The maximum COD loading rate was 8.66 kg m3 per day, a remarkably high rate considering the minimal operating area. TP concentrations were reduced from a mean of 42 mg L−1 in the first cells to 2.2 mg L−1 in the outlet of the system with an overall reduction efficiency of 95%.
The nanocomposite module reduced the TSS by more than 95% while the aerated cells decreased the COD concentration to less than 700 mg L−1 at the discharge point (90 to 95% removal efficiency), which meets the stringent requirement for release to a municipal wastewater treatment plant. We tested the system during two consecutive vintage seasons in 20. The entire system was mounted on two flat lorry beds equipped with a special hook for easy transportation. The key feature of the aerated cells is constant air transfer through the substrate which greatly increases treatment capacity.
#GALCON 8100 PORTABLE#
Each series consists of four portable containers (1.5 m3) filled with volcanic tuff of a decreasing progressive particle-size structure and equipped with a forced-air apparatus to keep a minimum soluble oxygen level of 1.5 mg L−1. We constructed an integrated mobile system comprised of a coago-flocculation module using nanocomposites to reduce TSS, and two series of aerated cells to reduce COD, N, polyphenols, and P concentrations so effluents could be discharged into a municipal wastewater treatment plant or under special conditions, recycled for irrigation. Winery wastewater poses a serious environmental problem, especially for small wineries whose yearly wastewater production and/or financial resources may not be sufficient to warrant advanced treatment plants.
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