Microalgal-Bacterial Consortia: An Alluring and Novel Approach for Domestic Wastewater Treatment

Moondra, Nandini; Jariwala, Namrata; Christian, R. A.

doi:10.26480/wcm.01.2020.51.56

Cited by 14 publications

(3 citation statements)

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“…For instance, Najafi Chaleshtari et al reported removal efficiencies of ammonium and phosphate of 94.36 + 3.5% and 88.37 + 3%, respectively, using a microalgal activated sludge membrane bioreactor cultivated in raw wastewater (Najafi et al, 2022). Similarly, Moondra et al achieved removal efficiencies of 97.40% for phosphate, 94.05% for ammonia, and 88.40% for COD with raw domestic wastewater under 8-and 16-h HRTs (Moondra et al, 2021).…”

Section: Macronutrient Removal Patterns From Mbc Native To the Ecuado...mentioning

confidence: 99%

Native microalgal-bacterial consortia from the Ecuadorian Amazon region: an alternative to domestic wastewater treatment

López-Patiño,

Cárdenas-Orrego,

Torres

et al. 2024

Front. Bioeng. Biotechnol.

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In low-middle income countries (LMIC), wastewater treatment using native microalgal-bacterial consortia has emerged as a cost-effective and technologically-accessible remediation strategy. This study evaluated the effectiveness of six microalgal-bacterial consortia (MBC) from the Ecuadorian Amazon in removing organic matter and nutrients from non-sterilized domestic wastewater (NSWW) and sterilized domestic wastewater (SWW) samples. Microalgal-bacterial consortia growth, in NSWW was, on average, six times higher than in SWW. Removal rates (RR) for NH4+- N and PO43−-P were also higher in NSWW, averaging 8.04 ± 1.07 and 6.27 ± 0.66 mg L−1 d−1, respectively. However, the RR for NO3− -N did not significantly differ between SWW and NSWW, and the RR for soluble COD slightly decreased under non-sterilized conditions (NSWW). Our results also show that NSWW and SWW samples were statistically different with respect to their nutrient concentration (NH4+-N and PO43−-P), organic matter content (total and soluble COD and BOD5), and physical-chemical parameters (pH, T, and EC). The enhanced growth performance of MBC in NSWW can be plausibly attributed to differences in nutrient and organic matter composition between NSWW and SWW. Additionally, a potential synergy between the autochthonous consortia present in NSWW and the native microalgal-bacterial consortia may contribute to this efficiency, contrasting with SWW where no active autochthonous consortia were observed. Finally, we also show that MBC from different localities exhibit clear differences in their ability to remove organic matter and nutrients from NSWW and SWW. Future research should focus on elucidating the taxonomic and functional profiles of microbial communities within the consortia, paving the way for a more comprehensive understanding of their potential applications in sustainable wastewater management.

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Section: Macronutrient Removal Patterns From Mbc Native To the Ecuado...mentioning

confidence: 99%

Native microalgal-bacterial consortia from the Ecuadorian Amazon region: an alternative to domestic wastewater treatment

López-Patiño,

Cárdenas-Orrego,

Torres

et al. 2024

Front. Bioeng. Biotechnol.

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“…The increase in pH and DO was highly influential in the removal of nutrients, organic, and metals from DWW. The growth of microalgae increases the DO content of the growth medium (Moondra et al, 2021a(Moondra et al, , 2020.…”

Section: Properties Of Raw Domestic Wastewatermentioning

confidence: 99%

Phytoremediation of xenobiotics – A green approach for the treatment of domestic wastewater

Durairaj¹,

Rani²,

Jeyaraj³

et al. 2023

EEC

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Remediation of xenobiotics from wastewater is highly essential due to its harmful impacts. Several chemical and physical processes are used to recover xenobiotics from wastewater, including ion exchange, reverse osmosis, electrodialysis, and ultrafiltration. However, the biological method of employing microalgae, has aroused the scientific community’s interest due to its cheap operating costs and effectiveness in absorbing and/or removing organic and elemental contaminants from wastewater. Chlorella vulgaris was used as a biological absorbent, in the remediation of domestic wastewater (DWW). The results of this work indicated that C. vulgaris, effectively eliminated pollutants and improved the physicochemical characteristics of wastewater such as pH, DO, alkalinity. Simultaneously, it also decreased BOD, COD, suspended solids, heavy metals (HMs) such as iron (Fe), zinc (Zn), cadmium (Cd), mercury (Hg), copper (Cu), lead (Pb) and nutrient load (phosphate and nitrate) of DWW. Effective remediation of the pollutants was attained within 4h of C. vulgaris cultivation. The removal of toxic compounds such as 4-methoxy carbonyl benzo hydrazide, benzamine 4,4’ methylene bis, acetamide, and N-(2-methyl phenyl), was confirmed with GC-MS analysis. The removal of polysulfides and aliphatic bromo compounds was evident from the FTIR studies. Pearson’s correlation analysis showed a positive correlation between physicochemical variables and algal biomass. Hence, the current study recommends biological wastewater treatment,by utilizing C. vulgaris as an effective and eco-friendly option, for removing pollutants and restoring the physicochemical properties of water.

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“…Wastewater can contain chemical pollutants such as heavy metals, pharmaceuticals, and biomarkers (Wong 2017 ; Ge et al 2019 ; Moondra et al 2020 ; Guan et al 2021 ; Chen et al 2022 ; Campos-Mañas et al 2022 ). WBE was used at first in 2008 to study the consumption of illicit drugs in the three Italian cities (Zuccato et al 2008 ), and subsequently to the consumption of alcohol (Reid et al 2011 ; Rodríguez-Álvarez et al 2015 ; Boogaerts et al 2016 ; Daglioglu et al 2020 ), tobacco (Castiglioni et al 2015 ), caffeine (Senta et al 2015 ), and selected pharmaceuticals (Hernández et al 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Nicotine consumption rate through wastewater-based epidemiology: a systematic review, meta-analysis and probabilistic risk assessment

Asadi

Fakhri

Salimi

et al. 2023

Environ Sci Pollut Res

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Wastewater-based epidemiology (WBE), as a rapid tool, is used to measure and monitor illicit drug consumption in the population. This method is also used to bridge biomarkers of exposure, contaminants, and human health. Smoking cigarettes and tobacco use are everyday habits in nowadays community. This systematic review and meta-analysis aimed to calculate nicotine consumption globally. The related studies were retrieved within international databases including Scopus, Google Scholar, and Web of Science, up to February 2021. It included twenty-one articles containing 87 measurements covering 275.3 million people with total wastewater samples of 2250. Results showed that the highest and lowest nicotine consumption rate (mg/1000 inh./day) was in Portugal (5860) and Vietnam (1201), respectively. The global pooled nicotine consumption rate was 2476 mg/1000 inh./day (95% CI (2289–2663). Based on WBE results, the average daily cigarette smoked per smoker is 14 (95% CI: 10–18 cigarettes/inh./day), close to the value of 14.2 reported by the survey and interview studies. Risk assessment of the nicotine consumption rate through WBE was calculated by the margin of exposure (MOE) approach. In total, 82% of nicotine consumption measurements were located in the “risk” level (MOE < 100), and 18% of the MOE values were between 100–1000. The results reveal that nicotine consumption risks need immediate global and local action strategies. Finally, these findings are helpful for healthcare agencies and policy-makers to take action against tobacco use prevalence. Graphical Abstract Supplementary Information The online version contains supplementary material available at 10.1007/s11356-023-27017-x.

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Microalgal-Bacterial Consortia: An Alluring and Novel Approach for Domestic Wastewater Treatment

Cited by 14 publications

References 0 publications

Native microalgal-bacterial consortia from the Ecuadorian Amazon region: an alternative to domestic wastewater treatment

Native microalgal-bacterial consortia from the Ecuadorian Amazon region: an alternative to domestic wastewater treatment

Phytoremediation of xenobiotics – A green approach for the treatment of domestic wastewater

Nicotine consumption rate through wastewater-based epidemiology: a systematic review, meta-analysis and probabilistic risk assessment

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