Trends in photobioreactor technology for microalgal biomass production along with wastewater treatment: Bottlenecks and breakthroughs

Pujaa Dange, Shreya Gawas, Soumya Pandit, Lukhanyo Mekuto, Piyush K. Gupta, Poojhaa Shanmugam, Kanupriya, Ravishankar Patil, Srijoni Banerjee

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

6 Scopus citations

Abstract

The rapid industrialization and urbanization over the years has resultant in increased pollution levels due to the emission of greenhouse gases and the discharge of hazardous wastewaters. In this context, beneficial wastewater treatment methods, such as the utilization of microalgae for bioremediation and carbon capture has gained huge attention due to its use as feedstock for the production of foods, biofuels, and bioactive compounds. These organisms utilize light and capable of CO2 sequestration; thus, they are promising organisms which can be used to curb the menace of global warming. However, the use of these organisms in large scale has been hindered by reactor engineering shortcomings, with the typical open pond cultivation being prone to the risk of contamination and lack of control on the growth conditions. On the contrary, the closed photobioreactors assure improved control on microalgal growth parameters in terms of maximum exposure to natural light, pH of the growth media, CO2 and water and nutrient supply. The advantage of using a photobioreactor is based on its ability to utilize CO2 rich gas as a means of mixing and carbon supply for the growth of algae. Therefore, this chapter discusses basic design criteria regarding different photobioreactors; the parameters affecting CO2 sequestration in photobioreactors for biomass production including the bottlenecks in the design of various photobioreactors for the generation of biomass.

Original languageEnglish
Title of host publicationAn Integration of Phycoremediation Processes in Wastewater Treatment
PublisherElsevier
Pages135-154
Number of pages20
ISBN (Electronic)9780128234990
DOIs
StatePublished - 1 Jan 2021
Externally publishedYes

Keywords

  • Algal biomass
  • Mixotrophic growth
  • Nitrate removal
  • Phosphate removal
  • Photobioreactor
  • Wastewater treatment

ASJC Scopus subject areas

  • General Immunology and Microbiology

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