author = "Mendon{\c{c}}a, Henrique Vieira de and Ometto, Jean Pierre Henry 
                         Balbaud and Otenio, Marcelo Henrique and Reis, Alberto Jos{\'e} 
                         Delgado dos and Marques, Isabel Paula Ramos",
          affiliation = "{} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Bioenergy recovery from cattle wastewater in an UASB-AF hybrid 
              journal = "Water Science and Technology",
                 year = "2017",
               volume = "76",
               number = "9",
                pages = "wst2017325",
             abstract = "New data on biogas production and treatment of cattle wastewater 
                         were registered using an upflow anaerobic sludge blanket-anaerobic 
                         filter (UASB-AF) hybrid reactor under mesophilic temperature 
                         conditions (37 °C). The reactor was operated in semi-continuous 
                         mode with hydraulic retention times of 6, 5, 3 and 2 days and 
                         organic loading rates of 3.8, 4.6, 7.0 and 10.8 kg CODt 
                         m\−3 d\−1. Biogas volumes of 0.60.8 m3 m\−3 
                         d\−1 (3.84.6 kg CODt m\−3 d\−1) and 1.21.4 m3 
                         m\−3 d\−1 (7.010.8 kg CODt m\−3 d\−1), 
                         with methane concentrations between 69 and 75%, were attained. The 
                         removal of organic matter with values of 6081% (CODt) and 5175% 
                         (CODs) allowed methane yields of 0.1550.183 m3 CH4 kg\−1 
                         CODt and 0.4010.513 m3 CH4 kg\−1 CODs to be obtained. 
                         Volatile solids were removed in 34 to 69%, with corresponding 
                         methane yields of 0.27 to 0.42 m3 CH4 kg\−1 VSremoved. The 
                         good performance of the novel hybrid reactor was demonstrated by 
                         biogas outputs higher than reported previously in the literature, 
                         along with the quality of the gas obtained in the various 
                         experimental phases. The hybrid reactor investigated in this study 
                         presents comparative advantages, particularly in relation to 
                         conventional complete mixture units, considering economic factors 
                         such as energy consumption, reactor volume and installation 
                  doi = "10.2166/wst.2017.325",
                  url = "http://dx.doi.org/10.2166/wst.2017.325",
                 issn = "0273-1223",
                label = "lattes: 1325667605623244 2 
             language = "en",
        urlaccessdate = "16 abr. 2021"