Design and development of mini-photobioreactor system for strategic high throughput selection of optimum microalgae-wastewater combination

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

doi:10.1016/j.biteb.2022.100967

Cited by 12 publications

(3 citation statements)

References 47 publications

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“…SPP • COD • TN • Total phosphorus (TP) COD = 96.2 ± 0.0% TN = 88.2 ± 2.8% TP = 71.5 ± 0.7%, (Maneechote et al 2023 ) 3 Flat panel PBR Length = 100 cm Width = 20 cm Height = 80 cm Wetland Chlorella vulgaris • COD • TN • TP COD = 39.33% TN = 21.27% TP = 88.10%, (Zhuang et al 2023 ) 4 PBR Height = 7.5 in Diameter = 6 in Sewage treatment plant, municipal, slaughterhouse Chroococcus sp. • COD • NO 3 - -N • Ammonia nitrogen (NH 4 + - N) • PO 4 3− COD = 45–72% NO 3 − -N NH 4 + -N, PO 4 3− = 90–98% (Chawla et al 2022 ) 5 PBR Length = 24 cm Width = 5 cm Height = 35 cm Synthetic effluent Chlorella sp. • Nitrogen • Phosphorus Nitrogen = > 73% Phosphorus = > 90% (Wang et al 2022b ) 6 Membrane PBR Volume = 50 L width = 0.4 m length = 0.2 m height = 0.75 m Pig slurry Chlorella vulgaris • NH 4 + • PO 4 3− • COD NH 4 + = 74.55% PO 4 3− = 70.20% COD = 65.85% (Nguyen et al 2022 ) 7 Thin layer + bubble column PBR Volume = 2400 L + 250 L Pig slurry ...…”

Section: Introductionmentioning

confidence: 99%

Produced water treatment by semi-continuous sequential bioreactor and microalgae photobioreactor

Khairuddin,

Khan,

Sankaran

et al. 2024

Bioresour. Bioprocess.

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Produced water (PW) from oil and gas exploration adversely affects aquatic life and living organisms, necessitating treatment before discharge to meet effluent permissible limits. This study first used activated sludge to pretreat PW in a sequential batch reactor (SBR). The pretreated PW then entered a 13 L photobioreactor (PBR) containing Scenedesmus obliquus microalgae culture. Initially, 10% of the PW mixed with 90% microalgae culture in the PBR. After the exponential growth of the microalgae, an additional 25% of PW was added to the PBR without extra nutrients. This study reported the growth performance of microalgae in the PBR as well as the reduction in effluent’s total organic carbon (TOC), total dissolved solids (TDS), electrical conductivity (EC), and heavy metals content. The results demonstrated removal efficiencies of 64% for TOC, 49.8% for TDS, and 49.1% for EC. The results also showed reductions in barium, iron, and manganese in the effluent by 95, 76, and 52%, respectively.

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Section: Introductionmentioning

confidence: 99%

Produced water treatment by semi-continuous sequential bioreactor and microalgae photobioreactor

Khairuddin,

Khan,

Sankaran

et al. 2024

Bioresour. Bioprocess.

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“…The native microalgae isolate PA4 was selected for most efficient performance in nutrient removal, COD removal, biomass production, and lower incubation time. [ 34 ] Fourteen freshwater and seawater microalgal strains were screened for lipid production, cell fragility for wet extraction, and triacylglycerols (TAG) recovery, using a 1 L flat‐panel PBR and Parachlorella kessleri UTEX2229 and Nannochloropsis gaditana CCMP527 were selected as the most suitable freshwater and seawater strains, respectively. Rapid prescreening of microalgae was done in an efficient overproducing screening photobioreactor (EOSS‐PBR) system which was customized for controlled and repeatable conditions, while depth screening and validation of selected strains was done in a 1 L airlift‐type flat‐panel PBR.…”

Section: Screening Of Microalgal Strains For Integrated Biorefinery A...mentioning

confidence: 99%

Integration of Microalgae‐Based Wastewater Bioremediation–Biorefinery Process to Promote Circular Bioeconomy and Sustainability: A Review

Singh

Shourie

Mazahar

2022

CLEAN Soil Air Water

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Bioremediation of wastewater using microalgae is inexpensive, energy efficient, and effective in pollutant reduction as compared to conventional wastewater treatment technologies. Wastewater is a huge resource of minerals, nutrients, bioenergy, and valuable organic compounds and can be used for cultivation of microalgae. The microalgal biomass can be further used as biorefinery feedstock to produce biofuels and commercially important high‐value products. The potential of microalgae toward bioremediation and biorefinery applications presents the avenues for integrating the two processes to support circular bioeconomy and sustainability. This review presents a holistic view of integration of bioremediation and biorefinery processes using microalgae for deriving multiple benefits like pollutant removal, resource recovery, biofuel production, and generation of high‐value commercial products. The current status of high‐throughput microalgal screening technologies is also discussed since the selection of suitable microalgal strains is crucial for the application. The review further summarizes various processes involved in bioremediation and biorefinery systems such as cultivation, bioremediation, harvesting, and downstream processing. Recent trends in microalgal strain improvement for bioremediation and biorefinery applications through genetic engineering, bioinformatics, omics technologies, and genome editing tools are highlighted, while addressing the risks, biosafety issues, and regulatory affairs associated with genetically modified algae.

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“…Una vez pasado el tiempo de secado, se dejó enfriar las muestras alrededor de 15 minutos para posteriormente realizar sus pesos en gramos (g) en la balanza analítica de precisión 0.1 mg (Ver Figura 18). Finalmente el peso seco de la biomasa C. Vulgaris se determinó utilizando la ecuación 1 descrito por Chawla et al (2022).…”

Section: Figura 15 Proceso De Centrifugadounclassified

Tratamiento de aguas residuales con el uso de la microalga Chlorella vulgaris para la remoción de materia orgánica

Moreno¹

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La utilización de la microalga Chlorella vulgaris son una opción ecoamigable y rentable principalmente si se integra en la depuración del agua residual empleando la materia orgánica y nutriente presente del agua como medio de cultivo. Es así, que el objetivo en este estudio fue evaluar la eficiencia de remoción de materia orgánica mediante el uso de la microalga C. vulgaris en las aguas residuales municipales del distrito de Monzón (Huánuco). Para determinar la capacidad de remoción se empleó un sistema de crecimiento de cultivo llamado “Biorreactor” por un periodo de 17 días donde el análisis físico-químico de las muestras a tratar fueron antes y después del experimento, asimismo se monitoreó diariamente el crecimiento de la microalga a través de la cuantificación de peso seco, velocidad especifica de crecimiento, productividad, temperatura, pH y las lecturas de absorbancia. El experimento contó con tres unidades experimentales sin el agua residual y tres unidades con el agua residual a una concentración de 21%. Los valores de porcentaje de remoción para el DQO, DBO, fosfato y nitrato fueron -293.0%, 41.9%, 69.13% y -107 592%, respectivamente. Donde el valor negativo del DQO se relacionó con la descomposición de las microalgas viejas a través de las bacterias y la liberación de la materia orgánica (sustancias poliméricas extracelulares ) luego que las microalgas fijaran el CO2, y para el valor negativo de nitrato se relacionó con la presencia de bacterias nitrificantes (BN). Por otra parte, los metales pesados como Ni, Cr, Pb y Cd fueron ligeramente superiores al Límite Máximo-Permisible (LMP).En conclusión, se ha demostrado que, si es posible la biorremediación de aguas residuales municipales a partir del cultivo de C. vulgaris.

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Design and development of mini-photobioreactor system for strategic high throughput selection of optimum microalgae-wastewater combination

Cited by 12 publications

References 47 publications

Produced water treatment by semi-continuous sequential bioreactor and microalgae photobioreactor

Produced water treatment by semi-continuous sequential bioreactor and microalgae photobioreactor

Integration of Microalgae‐Based Wastewater Bioremediation–Biorefinery Process to Promote Circular Bioeconomy and Sustainability: A Review

Tratamiento de aguas residuales con el uso de la microalga Chlorella vulgaris para la remoción de materia orgánica

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