Resumen de Tratamiento de la fracción líquida de purines de cerdo mediante un reactor discontinuo secuencias (SBR)

Xavier Flotats Ripoll, Albert Magrí Aloy

• A laboratory scale sequencing batch reactor (SBR) was used for the treatment of the liquid fraction of pig slurry (FLPC). Alternating aerobic, anoxic and anaerobic conditions were used for the biological removal of organic matter, nitrogen and phosphorus. Although the low COD / TKN ratio of the FLPC, around 7, removals as high as 89% TS, 98% COD, 98% N and 89% P were reached. The obtained effluent didn't reach Spanish water quality limits for discharge on natural watercourses. Therefore, improvements on cycle design and / or further tertiary treatment would be needed. However, results show that the SBR system is a promising technology for full scale implementation