Selection of optimum combination via comprehensive comparison of multiple algal cultures for treatment of diverse wastewaters

Chawla, Pushap; Malik, Anushree; Sreekrishnan, T.R.; Dalvi, Vivek; Gola, Deepak

doi:10.1016/j.eti.2020.100758

Cited by 45 publications

(12 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, C.S-N1 adapted to higher OT dose-driven harsh environments during progressive cultivation days with sufficient assimilation of NH 4 + -N and PO 4 3- -P and improved growth, which might be attributed to the algal antioxidant system activation. A similar observation was also reported, demonstrating that NH 4 + -N and PO 4 3- -P might have a supportive role in pollutant toxicity alleviation in microalgae ( Chawla et al, 2020 ). Thus, the progressive assimilation of nutrients might also favor C.S-N1 withstanding the potential cellular damage.…”

Section: Resultssupporting

confidence: 80%

Unravelling multiple removal pathways of oseltamivir in wastewater by microalgae through experimentation and computation

Zeeshan

Qiu

et al. 2022

Journal of Hazardous Materials

View full text Add to dashboard Cite

Increased worldwide consumption of antiviral drugs (AVDs) amid COVID-19 has induced enormous burdens to the existing wastewater treatment systems. Microalgae-based bioremediation is a competitive alternative technology due to its simultaneous nutrient recovery and sustainable biomass production. However, knowledge about the fate, distribution, and interaction of AVDs with microalgae is yet to be determined. In this study, a concentration-determined influence of AVD oseltamivir (OT) was observed on the biochemical pathway of Chlorella sorkiniana (C.S-N1) in synthetic municipal wastewater. The results showed that high OT concentration inhibited the biomass growth through increased oxidative stress, and restrained photosynthesis. Nevertheless, complete OT removal was achieved at its optimized concentration of 10 mg/L by various biotic (82%) and abiotic processes (18.0%). The chemical alterations in three subtypes of extracellular polymeric substances (EPS) were primarily investigated by electrostatic (OT +8.22 mV vs. C.S-N1 -18.31 mV) and hydrophobic interactions between EPS-OT complexes supported by secondary structure protein analysis. Besides, six biodegradation-catalyzed transformation products were identified by quadrupole-time-of-flight mass spectrometer and by density functional theory. Moreover, all the TPs exhibited log Kow ≤ 5 and bioconcentration factor values of < 5000 L/kg, meeting the practical demands of environmental sustainability. This study broadens our understanding of microalgal bioadsorption and biodegradation, promoting microalgae bioremediation for nutrient recovery and AVDs removal.

show abstract

Section: Resultssupporting

confidence: 80%

Unravelling multiple removal pathways of oseltamivir in wastewater by microalgae through experimentation and computation

Zeeshan

Qiu

et al. 2022

Journal of Hazardous Materials

View full text Add to dashboard Cite

show abstract

“…It could be noticed from the data analysis that all proposed algal cells showed higher removal efficiencies than the conventional Reeds wetland for all measured parameters specially in nutrient removal. This emphasizes the algal capability of consuming organic carbon as well as different nitrogen and phosphorus compounds as reported by (Chawla et al ., 2020).…”

Section: Resultsmentioning

confidence: 99%

“…Microalgae are characterized by their fast growth rates and their ability to provide high dissolved oxygen concentrations (Krishnan and Neera, 2013; Rathod, 2015; Gonçalves et al ., 2016). Microalgae can deploy within the whole water profile and hence can improve the treatment by their high suspended algal cells concentrations (Forni et al ., 2001; Chawla et al ., 2020). They also show high nutrient uptake capabilities as they use inorganic nitrogen and phosphorus for their growth (Abdel‐Raouf et al ., 2012; Beuckels et al ., 2015; Li et al ., 2019; Molinuevo‐Salces et al ., 2019).…”

Section: Introductionmentioning

confidence: 99%

Application of algae to free surface wetlands for effluent reuse

Yehia

El-Saadi

Galal

2020

Water & Environment J

View full text Add to dashboard Cite

The main goal of this study is to assess the role of Algae in the treatment of wastewater and its capability to improve the performance of the free surface wetland as a green solution. It offers a non‐conventional water resource that participate in solving the water scarcity issue in Egypt. This study was carried out in Lake Manzala Water Research Station which is located at the tail end of Bahr El Baqar Drain in Northern Delta in ‏Egypt. A pilot scale wetland consisting of four parallel basins under natural climatic conditions were used for the experiment. The first cell was cultivated with Reeds (traditional plant used in wetlands), while the algae were cultivated in the three other basins. Three different microalgae and algae species (Chlorella, Spirulina and Azolla) were experimented and compared to assess for the finest removal efficiency for different contaminants as BOD, COD, TN, TP, TC, FC and heavy metals. A tailor‐made module was developed with Excel Visual Basic Application programming language to compare the efficiencies of the different treatment systems. Results showed that BOD and COD best removal results were reached by Chlorella with 88% and 84% removal efficiencies respectively. Results also showed that Azolla is the most efficient treatment media for drainage water containing high concentrations of TN while Spirulina was found to be the most efficient in extracting the heavy metals such as Aluminum (Al), Iron (Fe) and Manganese (Mn).

show abstract

“…Safety measures for sample collection were followed. The collected e uents were carefully shifted to the laboratory, kept at 4°C (Pham and Bui 2020), characterized after 24 h, and ltered (Whatman Grade 42 lter paper) to separate solid particles and unwanted debris (Chawla et al 2020). BOD, total phosphorus (TP), and total nitrogen (TN) content of the samples were analyzed (APHA 2017).…”

Section: Wastewater Collection and Characterizationmentioning

confidence: 99%

Sustainable approach for biodiesel production and wastewater treatment by cultivating Pleusrastrum insigne in wastewater

Chhandama

Satyan

2022

International Journal of Phytoremediation

View full text Add to dashboard Cite

The globalized modern world has been confronted with some of the most challenging problems, most of which arises from human activities. Overexploitation of fossil fuels which leads energy and environmental crisis, loss of aquatic ecosystem due to improper disposal of household and industrial waste into water bodies constitute some of the biggest emerging global problems. In this study, an unconventional and sustainable approach to produce biodiesel was analyzed by growing Pleurastrum insigne in wastewater. The growth of P.insigne in wastewater in turn signi cantly reduce the amount of biological oxygen demand, total phosphorus content and total nitrogen content in the wastewater. Production of biodiesel conforming to international standards was predicted from P. insigne cultivated in wastewater con rming the effectiveness of combining wastewater treatment and biodiesel production.

show abstract

Selection of optimum combination via comprehensive comparison of multiple algal cultures for treatment of diverse wastewaters

Cited by 45 publications

References 31 publications

Unravelling multiple removal pathways of oseltamivir in wastewater by microalgae through experimentation and computation

Unravelling multiple removal pathways of oseltamivir in wastewater by microalgae through experimentation and computation

Application of algae to free surface wetlands for effluent reuse

Sustainable approach for biodiesel production and wastewater treatment by cultivating Pleusrastrum insigne in wastewater

Contact Info

Product

Resources

About