Publication: Effects of dilution and pretreatment on nutrient removal and biomass production of Chlorella vulgaris in kitchen wastewater
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Issued Date
2024-01-01
Resource Type
ISSN
15226514
eISSN
15497879
Scopus ID
2-s2.0-85187459205
Pubmed ID
38462818
Journal Title
International Journal of Phytoremediation
Volume
26
Issue
9
Start Page
1410
End Page
1419
Rights Holder(s)
SCOPUS
Bibliographic Citation
International Journal of Phytoremediation Vol.26 No.9 (2024) , 1410-1419
Suggested Citation
Prachanurak A., Prachanurak P. Effects of dilution and pretreatment on nutrient removal and biomass production of Chlorella vulgaris in kitchen wastewater. International Journal of Phytoremediation Vol.26 No.9 (2024) , 1410-1419. 1419. doi:10.1080/15226514.2024.2324364 Retrieved from: https://hdl.handle.net/20.500.14740/20047
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Abstract
This research investigated the effect of kitchen wastewater (KWW) concentrations and pretreatment methods on Chlorella vulgaris biomass production, lipid content and nutrient removal. This study was divided into two separate experiments. The first experiment determined the appropriate dilution rate of KWW for the growth of microalgae, sterilized KWW was varied between 25%, 50%, 75%, and 100%(v/v). The result indicated that 50%(v/v) showed the highest nutrient removal by 90.23%, 85.87%, and 80.64% of sCOD, TKN, and TP, respectively. The highest biomass and lipid content were obtained with 50%(v/v) (1.447 g/L, 37.9%). The second experiment was to find an effective physical pretreatment method, which separated the biotic contaminant, non-sterilized KWW was diluted 50%(v/v) and filtered with different mesh size filters (150 μm, 50 μm, and 30 μm) compared with sterilized KWW as a control sample. The result indicated that pretreatment with 50 μm filtration was found highest nutrient removal by 90.51%, 84.74%, and 77.50% of sCOD, TKN, and TP, respectively. The highest biomass and lipid content were obtained with 50 μm filtration (1.496 g/L, 39.4%). Our results support the hypothesis that the optimal dilution and proper filtration of KWW helps create more favorable environment for microalgal growth.