This is a Preprint and has not been peer reviewed. This is version 2 of this Preprint.
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Abstract
Developing countries such as the Philippines suffer from a lack of policy development and implementation on wastewater treatment and discharge. Chlorella vulgaris is a microscopic green algae that has been employed in other countries for WWT due to its ability to simultaneously reduce pollutants and produce valuable biomass. However, challenges in technology adaptation such as differential efficiency depending on the location and wastewater types were encountered. Three liquid wastes of different origins—municipal (public market), agricultural (piggery effluent), and industrial (meat processing plant) wastewaters, were used to gauge the remediation potentials of C. vulgaris in a simple photobioreactor setup. Treated samples from municipal, agricultural, and industrial wastewaters showed microalgal growth rates of 0.2685, 0.1527, and 0.1809, respectively, along the 6-day treatment period. Post-intervention comparisons of treated vs. untreated samples revealed a lower electrical conductivity, total dissolved solids, chemical oxygen demand, nutrients (nitrate, ammonia, phosphate), and fecal coliform (MPN/100 mL) on treated samples. Moreover, all treated samples demonstrated relatively higher dissolved oxygen concentrations, denoting the photosynthetic activity by the microalgae. Therefore, Chlorella vulgaris could be harnessed for the remediation of different wastewaters in Nagcarlan, Laguna, Philippines to circumvent issues in water reclamation and degradation.
DOI
https://doi.org/10.32942/X2ZC7R
Subjects
Biology, Ecology and Evolutionary Biology, Life Sciences, Other Ecology and Evolutionary Biology
Keywords
Chlorella vulgaris, bioremediation, wastewater, photobioreactor, water reclamation, microalgae
Dates
Published: 2023-04-26 21:55
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License
CC-By Attribution-NonCommercial-NoDerivatives 4.0 International
Additional Metadata
Language:
English
Data and Code Availability Statement:
Not applicable
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