Kvasny Prum. 1989; 35(7): 203-208 | DOI: 10.18832/kp1989028

Model study of anaerobic treatment of fruit distillation stops.Peer-reviewed article

V. HLAVAČKA, V. KOSKOVÁ

An anaerobic treatment of fruit distillation stops in an anaerobic packet bed column under mesophilic conditions was tested. Under these conditions with the residence time of 25 days and the loading rate of about 3.2 kg/m3/d, the process showed the very good efficiency in the reduction of organic materials )in average 83 % as COD_Cr and 69.8 % as BOD₅ after 2 h sedimentation). The average biogas production was 24.8 m3/m3/d i.e. 0.29 m3/kg of organic materials consumed expressed as COD_Cr and 2.3 m3/kg expressed as BOD₅. The level of methane in the biogas was about 55.8 % but its level significantly varied. A high slops concentration results in an overloading of the reactor with the following insufficient water treatment. Therefore, an aerobic treatment of the outflow from the anaerobic column will be necessary. The results prove that the two stage water treatment (acidogenic and methanogenic) performed under different process conditions is more sitable.
(In Slovak, English summary only)

Keywords: anaerobic process, fruit distillation stops, waste water, biogas

Published: July 1, 1989