A comparison of feasible methods for microalgal biomass determinations during tertiary wastewater treatment

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One of the most important parameters for monitoring, designing and optimizing the algae-based wastewater treatment system is the biomass concentration. The determination method of microalgal biomass concentration in the culture medium by Volatile Suspended Solids (VSS), as a conventional method, was found inconvenient because it takes long time to obtain the results. In this study, the performance of five feasible methods for microalgal biomass determinations was evaluated and compared. The coefficient of determination (R2) of Optical Density (OD), Total Suspended Solids (TSS), turbidity and wet weight was 0.9903, 0.9698, 0.975, 0.9794 and 0.9922, 0.9686, 0.9649, 0.9694 for C. vulgaris and Phormidium sp., respectively. After comparing with the VSS method during wastewater treatment process, OD is recommended as a reliable method for biomass determinations for green (C. vulgaris) and blue-green (Phormidium sp.) algae.

Original languageEnglish
JournalEcological Engineering
Volume94
Pages (from-to)532-536
Number of pages5
ISSN0925-8574
DOIs
Publication statusPublished - 01.09.2016

    Research areas

  • Comparison, Feasible methods, Microalgal biomass measurement, Wastewater treatment process
  • Environmental planning

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