Abstract

Manure Waste from Dairy Farms Has Been Used for Methane Production for Decades, However, Problems Such as Digester Failure Are Routine. the Problem Has Been Investigated in Small Scale (1-2 L) Digesters in the Laboratory; However, Very Little Scale-Up to Intermediate Scales Are Available. We Report Production of Methane in a 100-L Digester and the Results of an Investigation into the Effect of Partial Mixing Induced by Gas Upflow/recirculation in the Digester. the Digester Was Operated for a Period of About 70 D (With 16-D Hydraulic Retention Time) with and Without the Mixing Induced by Gas Recirculation through an Internal Draft Tube. the Results Show a Clear Effect of Mixing on Digester Operation. Without Any Mixing, the Digester Performance Deteriorated within 30-50 D, Whereas with Mixing Continuous Production of Methane Was Observed. This Study Demonstrates the Importance of Mixing and its Critical Role in Design of Large-Scale Anaerobic Digesters. Copyright © 2006 by Humana Press Inc. All Rights of Any Nature Whatsoever Reserved.

Department(s)

Chemical and Biochemical Engineering

Keywords and Phrases

Anaerobic digestion; Animal manure; Biogas; Gas recirculation; Mixing

International Standard Serial Number (ISSN)

0273-2289

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2023 Springer, All rights reserved.

Publication Date

01 Jun 2006

PubMed ID

18563663

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