Studies on Production of Biogas by Co-digestion of Sewage Sludge, Wastepaper and Waste Grown Algae

Authors

  • Amritha Ajeej Department of Built and Natural Environment, Caledonian College of Engineering, Muscat, Sultanate of Oman
  • Joseph V. Thanikal Department of Built and Natural Environment, Caledonian College of Engineering, Muscat, Sultanate of Oman
  • C.M. Narayanan Department of Built and Natural Environment, Caledonian College of Engineering, Muscat, Sultanate of Oman

DOI:

https://doi.org/10.37591/jomcct.v7i1.1918

Keywords:

Anaerobic digestion, co-digestion, biodegradability, multiple substrates, biogas

Abstract

Abundantly produced sewage sludge in wastewater treatment plants and algae grown in wastewater are the potentially important biomass for the production of biogas. Experimental investigations have been conducted to study the feasibility of co-digestion of the organic fraction of municipal sludge, waste paper, and waste grown algae under anaerobic mesophilic (37oC) conditions in lab-scale bioreactors. Quantity and quality of the biogas, volatile solid reduction and start-up period for the reactions were taken into consideration. Single substrate digestion and co-digestion of the three substrates with different organic loading rates were analyzed in the study. Results show that in the co-digestion by the addition of waste grown algae and paper to the sewage sludge, the biogas volume is increased to 60% and considerable volatile solid reduction is observed as 50% for an organic loading rate of 5.0 gmvs/l. Moreover, co-digestion improved the performance of the bioreactor by stimulating the anaerobic digestion yield and balancing the carbon to nitrogen ratio in the reactor.

 

Downloads

Published

2019-04-24

Issue

Vol. 7 No. 1 (2016)

Section

Articles

License

Declaration and Copyright Transfer Form

(to be completed by authors)

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

  • I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.
  • I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).
  • I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.
  •  I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

4. ________________

 

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.