Design and process simulation of a small scale waste-to-energy bioreactor

Amirhossein Malakahmad, Noor Ezlin Ahmad Basri, Shahrom Md Zain

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Transformation of organic waste to energy is a complex process which involves hundreds of possible intermediate compounds and reactions. Simulation process can provide suitable assessment of a bioconversion system before its actual fabrication and commercialization. In addition, process simulation is a suitable tool for optimization of technical factors (e.g., bioreactor configuration and conversion units design) and economical factors (e.g., throughput, production cost, revenue and gross margin). In this study, biodegradation process of a small-scale anaerobic bioreactor was simulated using SuperPro Designer®. Process simulation flow sheet, materials registration and process reactions were conducted during model setup. Next, model validation was carried out by comparison between the outputs and actual data achieved during experimental phase. Results show the appreciable agreement between predicted and actual data due to appropriate process definition during simulation. Two different bioreactor configurations were investigated and efficiency and performance of each pattern was tested based on biogas production rate, methane content in biogas and biochemical and chemical oxygen demands (BOD and COD) removal efficiencies. Finally, economical analysis was performed in the model which indicates, biogas production from organic waste in a single small-scale bioreactor is a promising method for renewable energy generation.

Original languageEnglish
Pages (from-to)2586-2591
Number of pages6
JournalJournal of Applied Sciences
Volume12
Issue number24
DOIs
Publication statusPublished - 2012

Fingerprint

Bioreactors
Biogas
Biochemical oxygen demand
Bioconversion
Chemical oxygen demand
Flow simulation
Biodegradation
Methane
Throughput
Fabrication
Costs

Keywords

  • Biogas production
  • Energy
  • Process simulation
  • Solid waste

ASJC Scopus subject areas

  • General

Cite this

Design and process simulation of a small scale waste-to-energy bioreactor. / Malakahmad, Amirhossein; Ahmad Basri, Noor Ezlin; Md Zain, Shahrom.

In: Journal of Applied Sciences, Vol. 12, No. 24, 2012, p. 2586-2591.

Research output: Contribution to journalArticle

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