Note to Editor: Microalgae cultivation for wastewater treatment and biofuel production: a bibliographic overview of past and current trends

Unc, Adrian; Monfet, Evelyne; Potter, Alan A.; Camargo‐Valero, Miller Alonso; Smith, Sarah R.

doi:10.1016/j.algal.2017.05.005

Cited by 14 publications

(4 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To this end, gaining a better understanding of the interactions between specific microalgae and protozoa will help to develop operational strategies that minimize crashes. Species of the genera Chlorella and Tetradesmus are common in freshwater ecosystems and are among the most used and best understood microalgae [22][23][24]. Here, specific strains of the species Chlorella vulgaris and Tetradesmus obliquus were selected to conduct the experiments, which also allowed their differentiation by light microscopy.…”

Section: Introductionmentioning

confidence: 99%

Co-cultivation of microalgae in aquaculture water: Interactions, growth and nutrient removal efficiency at laboratory- and pilot-scale

et al. 2020

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Co-cultivation of microalgae in aquaculture water: Interactions, growth and nutrient removal efficiency at laboratory- and pilot-scale

et al. 2020

View full text Add to dashboard Cite

“…Microorganisms either cooperate through the exchange of extracellular metabolites, vitamins, and siderophores to increase nutrient uptake rates and biomass productivities, or compete by metabolite excretion to produce bactericidal or micro-algicidal effects ( Cydzik-Kwiatkowska and Zielińska, 2016 ). Consistently, the research pathway in this scientific field has been directed towards the use of two different medium cultures: non-sterilized wastewater (NSWW) and sterilized wastewater (SWW) ( Unc et al, 2017 ). The few studies that exist on this topic have shown that MBC nutrient removal efficiencies vary significantly depending on which medium they grow on; as NSWW contains natural micro-fauna that does not exist in SWW.…”

Section: Introductionmentioning

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.

View full text Add to dashboard Cite

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.

show abstract

“…These high natural amounts of oxygen enhance the active aerobic bacteria to oxidize organic matter, resulting in the production of the inorganic nutrients NH 3 , PO 4 3− , and CO 2 , which are essential for algal growth. Moreover, WSPs can be operated using a very low bacterial population, within the range of 10 6 to 10 7 CFU/mL [25][26][27]. Furthermore, the treatment efficiency and microalgal-bacterial function rely on several factors, such as dissolved oxygen, pH, sunlight, and pond design [21].…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment of Natural Wastewater Treatment Plants by Multivariate Statistical Models: A Case Study

Gad

Abdo

et al. 2022

Sustainability

View full text Add to dashboard Cite

Waste stabilization ponds (WSPs) as natural wastewater treatment plants are commonly utilized for wastewater treatment due to their simple design, low cost, and low-skilled operator requirements. Large-scale studies assessing the performance of WSPs using multivariate statistical models are scarce. Therefore, this study was conducted to assess the performance of 16 full-scale WSPs regarding physicochemical parameters, algae, bacterial indicators, and pathogens (e.g., Cryptosporidium, Entamoeba histolytica) by using multivariate statistical models. The principal component analysis revealed that the chemical pollutants were removed significantly (p < 0.001) through the treatment stages of 16 WSPs, indicating that the treatment stages made a substantial change in the environmental parameters. The non-multidimensional scale analysis revealed that the treatment stages restructured the bacterial indicators significantly (p < 0.001) in the WSPs, implying that the bacterial indicators were removed with the progress of the treatment processes. The algal community exhibited a distinct pattern between the geographical location (i.e., upper WSPs versus lower WSPs) and different treatment stages (p < 0.001). Four out of the sixteen WSPs did not comply with the Egyptian ministerial decree 48/1982 for discharge in agriculture drainage; three of these stations are in lower Egypt (M.K., Al-Adlia, and Ezbet El-Borg), and one is in upper Egypt (Armant). The continuous monitoring of WSPs for compliance with regulatory guidelines with the aid of multivariate statistical models should be routinely performed.

show abstract

Note to Editor: Microalgae cultivation for wastewater treatment and biofuel production: a bibliographic overview of past and current trends

Abstract: This is a repository copy of Note to Editor: Microalgae cultivation for wastewater treatment and biofuel production: a bibliographic overview of past and current trends.

Cited by 14 publications

References 69 publications

Co-cultivation of microalgae in aquaculture water: Interactions, growth and nutrient removal efficiency at laboratory- and pilot-scale

Co-cultivation of microalgae in aquaculture water: Interactions, growth and nutrient removal efficiency at laboratory- and pilot-scale

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

Performance Assessment of Natural Wastewater Treatment Plants by Multivariate Statistical Models: A Case Study

Contact Info

Product

Resources

About