کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
684982 | 889031 | 2009 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Applications of Anammox based processes to treat anaerobic digester supernatant at room temperature Applications of Anammox based processes to treat anaerobic digester supernatant at room temperature](/preview/png/684982.png)
The supernatant of an anaerobic digester was treated at 20 °C in two systems. The first one is a two units configuration, conformed by two sequencing batch reactors (SBR), carrying out partial nitrification and Anammox processes, respectively. Partial nitrification was achieved by granular biomass with a mean diameter of 3 mm, operating at a dissolved oxygen concentration of 2.7 mg/L. The combined system allowed the removal of nitrogen loading rates around 0.08 g N/(L d).Afterwards, Anammox biomass was spontaneously developed in the inner core of the nitrifying granules of the SBR and therefore, partial nitrification and Anammox process were carried out in a single unit. Once the stable CANON process was established, a mean nitrogen removal rate of 0.8 g N/(L d) was registered. The settling velocities of the granules ranged from 70 to 150 m/h with sludge volumetric index values lower than 50 mL/g VSS during the whole operation.
Journal: Bioresource Technology - Volume 100, Issue 12, June 2009, Pages 2988–2994