Design and operation of pulsed anaerobic digesters

✍ Scribed by M. Etzold; E. A. Stadlbauer

• Book ID: 104744372
• Publisher: Springer
• Year: 1990
• Tongue: English
• Weight: 592 KB
• Volume: 5
• Category: Article
• ISSN: 1615-7605
• DOI: 10.1007/bf00369641

✦ Synopsis

The development of a pulse-driven loop reactor (PDLR), a pulsed anaerobic filter (PAF) and a pulsed anaerobic baffled reactor (PABR) is described. In an anaerobic PDLR internal circulation is achieved by a specially designed pulse-nozzle. In a PAF and PABR an oscillation is superimposed onto the liquid content of the fermenters by means of a pulse pump without any moving devices in the reactors. Pulsed digesters faciliate degassing, avoid reactor clogging as well as short-circuiting and allow a variety of packedbed to fluidized-bed operations. Anaerobic fermentation of acetic acid and distillery slops in pulsed digesters on a laboratory scale shows that hydrodynamic stress caused by pulsation is well compatible to degrading bacteria.