6533b871fe1ef96bd12d0e91

RESEARCH PRODUCT

Extreme thermophilic (70°C), VFA-fed UASB reactor: performance, temperature response, load potential and comparison with 35 and 55°C UASB reactors

Jukka RintalaRaghida Lepistö

subject

chemistry.chemical_classificationEnvironmental EngineeringChromatographyChemistryEcological ModelingThermophilePulp and paper industryPollutionPropionateBioreactorWaste Management and DisposalAnaerobic exerciseTemperature responseEffluentWater Science and TechnologyCivil and Structural EngineeringMesophile

description

Abstract The paper evaluates the reactor performance, load potential and temperature response of a 70°C, VFAs-fed UASB reactor, seeded with mesophilic granular sludge. Batch experiments were, in addition, conducted to assess the effect of temperature on the achievable residual VFAs in the 70°C effluent. The performance of similarly-fed and seeded 35 and 55°C UASB reactors was also tested. At a short HRT (2–3 h) and a moderate VLR of 12–20 g COD l−1 d−1, the 70°C UASB achieved 66–74% VFAs removal (acetate and butyrate 84–90%, propionate

https://doi.org/10.1016/s0043-1354(99)00034-2