Feasibility investigation of biogas production from domestic waste water (Case Study: an industrial unit inShahin-shahr, Isfahan)

Document Type : Original Article

Authors

1 M.Sc, Department of Mechanical Engineering, Najafabad Branch, Islamic Azad Universtiy, Najafabad, Iran

2 Assistant Professor, Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran

Abstract

Biogas is the mixture of gases produced by the breakdown of organic matter in the absence of oxygen. Biogas can be produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste or food waste. The purpose of this study was investigation the feasibility of biogas production from domestic wastewater in an industrial unit. In this research, firstly the characteristics, production sources, importance, usage and models of biogas production systems were studied. Then, the calculations related to the amount of biogas production of the mentioned industry were performed based on influent and effluent wastewater flow rate and biological tests. According to the results, because of the low flow rate of influent wastewater, the amount of produced biogas production was not considerable and it could not supply the heating/cooling demand of the industrial unit and only the electrical energy of the lighting of the area will be supplied by the energy of produced biogas. However, in terms of reducing greenhouse gas emissions, the production of liquid and solid contaminated solid fertilizers can be considered. However, if the wastewater is added to the wastewater of adjacent animal husbandry, poultry houses and slaughterhouses andthe flow reaches at least 1300 m3per day, the biogas production will be considerable and economical.

Keywords

References

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Journal of Renewable and New Energy
Volume 7, Issue 2 - Serial Number 14
September 2020
Pages 87-96

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History

  • Receive Date: 13 August 2019
  • Revise Date: 30 December 2019
  • Accept Date: 26 January 2020

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