TY - JOUR
T1 - Dairy Industry wastewater and stormwater energy valorization
T2 - effect of wastewater nutrients on microalgae-yeast biomass
AU - Kumar, Vinod
AU - Gururani, Prateek
AU - Parveen, Afreen
AU - Verma, Monu
AU - Kim, Hyunook
AU - Vlaskin, Mikhail
AU - Grigorenko, Anatoly V.
AU - Rindin, Kirill G.
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2023/10
Y1 - 2023/10
N2 - Valorization of dairy-industry wastewater and stormwater energy is a new approach to establishment of sustainable agriculture, which is based on use of stormwater containing dairy wastewater for production of yeast-algae (Saccharomyces cerevisiae–Scenedesmus abundans) biomass and biofuel. Dairy wastewater (DW) has high COD (68,000 mg/L) and BOD (31,800 mg/L). To cultivate yeast-microalgae, dilution was performed using stormwater with the dilution rate of 10 to 100%. The objective of this study was to treat the dairy wastewater and stormwater (SW) with microalgae. In this study cultures of Scenedesmus abundans (microalgae), Saccharomyces cerevisiae + Scenedesmus abundans (yeast + microalgae) and Scenedesmus abundans + Chlorella minutissima (microalgae + microalgae) were cultivated on different dilution ratios (10–100%). The artificial consortium of yeast and microalgae has been able to remove 41.7% of total nitrogen (TN), 60.9% of total phosphorus (TP), 83% of COD, and 90% of BOD for 14 days. Reduction in bacterial load was also reported. Dry weight of yeast-algal biomass was found to be 1.9 g/L in DW and 1.2 g/L in control medium. Moreover, increased lipid content (27.5%) was also observed in DW cultivated biomass as compared to the control (21%) and further an increase in unsaturated fatty acids (USFA) and PUFA content was also observed. Increase in protein content while decrease in carbohydrate content was reported. Chlorophyll a and carotenoid content were high in yeast–algal pellets cultivated in DW and SW.
AB - Valorization of dairy-industry wastewater and stormwater energy is a new approach to establishment of sustainable agriculture, which is based on use of stormwater containing dairy wastewater for production of yeast-algae (Saccharomyces cerevisiae–Scenedesmus abundans) biomass and biofuel. Dairy wastewater (DW) has high COD (68,000 mg/L) and BOD (31,800 mg/L). To cultivate yeast-microalgae, dilution was performed using stormwater with the dilution rate of 10 to 100%. The objective of this study was to treat the dairy wastewater and stormwater (SW) with microalgae. In this study cultures of Scenedesmus abundans (microalgae), Saccharomyces cerevisiae + Scenedesmus abundans (yeast + microalgae) and Scenedesmus abundans + Chlorella minutissima (microalgae + microalgae) were cultivated on different dilution ratios (10–100%). The artificial consortium of yeast and microalgae has been able to remove 41.7% of total nitrogen (TN), 60.9% of total phosphorus (TP), 83% of COD, and 90% of BOD for 14 days. Reduction in bacterial load was also reported. Dry weight of yeast-algal biomass was found to be 1.9 g/L in DW and 1.2 g/L in control medium. Moreover, increased lipid content (27.5%) was also observed in DW cultivated biomass as compared to the control (21%) and further an increase in unsaturated fatty acids (USFA) and PUFA content was also observed. Increase in protein content while decrease in carbohydrate content was reported. Chlorophyll a and carotenoid content were high in yeast–algal pellets cultivated in DW and SW.
KW - Dairy wastewater
KW - Microalgae
KW - Saccharomyces cerevisiae
KW - Scenedesmus abundans
KW - Yeast
UR - http://www.scopus.com/inward/record.url?scp=85132316765&partnerID=8YFLogxK
U2 - 10.1007/s13399-022-02947-7
DO - 10.1007/s13399-022-02947-7
M3 - Article
AN - SCOPUS:85132316765
SN - 2190-6815
VL - 13
SP - 13563
EP - 13572
JO - Biomass Conversion and Biorefinery
JF - Biomass Conversion and Biorefinery
IS - 15
ER -