Influence of up-flow velocity on the performance of an anaerobic filter under o...

• Author(s): Ribeiro, N. J. ; Pires, O. C. ; Mota, M. ; Ferreira, E. C. ; Alves, M. M.
• Date: 2001
• Persistent ID: http://hdl.handle.net/1822/149
• Origin: RepositóriUM - Universidade do Minho
• Subject(s): Anaerobic filter; Load shocks; Oleic acid
• Document Type: Article
• Language: English

Description

An upflow velocity of 0.21 m h−1 was optimal to minimize the effect of organic shocks (from 6 to 30 kg COD m−3 d−1) when operating an upflow anaerobic filter for the treatment of an oleic acid-based effluent (50% w/v COD). This value represented the transition between a mass transfer controlled regime and a kinetic regime. Under hydraulic shock loads, an increase in upflow velocity from 0.3 to 0.4 m h−1 decreased the removal efficiency from 68 to 51%.