Tertiary treatment of domestic wastewater by <i>Spirulina platensis</i> integrated with microalgal biorefinery

Chavan, Ram; Mutnuri, Srikanth

doi:10.1080/17597269.2018.1461509

Cited by 27 publications

(9 citation statements)

References 44 publications

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“…A. platensis species has the ability to exist and grow in various types of water like seawater [28], freshwater [29], aquaculture wastewater [30], industrial wastewater [31], agriculture wastewater [32], and domestic wastewater [33]. A. platensis is a filamentous, spiral-shaped, blue-green alga that culture in alkaline water, with pH up to 11 [20].…”

Section: Introductionmentioning

confidence: 99%

Potential Applications of Native Cyanobacterium Isolate (Arthrospira platensis NIOF17/003) for Biodiesel Production and Utilization of Its Byproduct in Marine Rotifer (Brachionus plicatilis) Production

et al. 2021

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To achieve strong, successful and commercial aqua-biotechnological microalgae applications, screening, isolation, molecular identification, and physiological characterizations are needed. In the current study, a native cyanobacteria strain Arthrospira platensis NIOF17/003 was isolated from the surface water of El-Khadra Lake, a saline-alkaline lake located in Wadi El-Natrun, Egypt. The cyanobacterium was phylogenetically identified by 16S rRNA molecular marker and deposited in the GenBank database (accession number MW396472). The late exponential phase of A. platensis NIOF17/003 was reached at the 8th day of growth using Zarrouk medium, with a recorded dry weight (DW) of 0.845 g L−1. The isolated strain showed 52% of protein, 14% of carbohydrate, biomass productivity of 143.83 mg L−1 day−1, 8.5% of lipid, and lipid productivity of 14.37 mg L−1 day−1. In general, the values of cetane number, iodine value, cold filter plugging point (52.9, 85.5 g I2/100 g oil, and −2.2 °C, respectively) of the isolated fatty acid methyl esters are in accordance with those suggested by international standards. Besides, applying algal-free lipid (FL) as biodiesel byproduct in the production of rotifer (Brachionus plicatilis) revealed that a 0.6 g L−1 FL significantly increased the rotifer population females carrying eggs, confirming that FL can be used efficiently for B. plicatilis production. The current study concluded that the new isolate A. platensis NIOF17/003 is a promising strain for double sustainable use in biodiesel production and aquaculture feed.

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Section: Introductionmentioning

confidence: 99%

Potential Applications of Native Cyanobacterium Isolate (Arthrospira platensis NIOF17/003) for Biodiesel Production and Utilization of Its Byproduct in Marine Rotifer (Brachionus plicatilis) Production

et al. 2021

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“…Spirulina platensis cultivated in an open raceway pond has been able to remove 130 mg nitrate, 880 mg total nitrogen, 120 mg phosphate and 2.86 g-COD per day from domestic wastewater. The microalgae contained 26.65% (w/w) lipids, and the residual biomass was used as feedstock for biomethane production (Chavan & Mutnuri, 2019). Despite these promising results, studies are scarce on how to efficiently valorize RAS using macro-and microalgae, mostly because these are considered an economically unfavourable option when compared to other edible vegetables.…”

Section: Recirculating Aquaponic Systemsmentioning

confidence: 99%

Perspectives for improving circular economy in brackish shrimp aquaculture

Pereira

Lemoine

Neubauer

et al. 2021

Aquaculture Research

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The growth of the world's population, predicted to reach 9.3 billion by 2050, along with resource limitation, soil degradation and other threats to food security, calls for innovative strategies for food production and consumption. Currently, a shift from meat to fish intake is encouraged to improve sustainability and mitigate the impact of food systems, particularly in low-income rural areas (van der Goot

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“…BMP assays were carried out in duplicates. In each bottle, 1 mL micronutrient stock, 1 mL macronutrient stock, 5 mL 5 % (W/V) NaHCO 3 , 13 mL of DDW and 80 mL of BMP inoculum was inoculated [16]. This combination was referred as negative control.…”

Section: F Bmp Of Microalgal Biomassmentioning

confidence: 99%

“…The biogas quantity was determined daily using water displacement process. Methane content was analyzed by using gas chromatography (Thermofischer Trace-1110) using packed sphaerocarb column as per Chavan et al 2018 [16]. The yield of biogas was determined by using following formulae, Net Biogas production (mL) (A) = (B-C) Net biogas yield (mL/ g VS) (D) = A / g VS added Net Methane yield = D X % methane Where, B= Total Biogas produced, C= Total biogas produced by negative control.…”

Section: F Bmp Of Microalgal Biomassmentioning

confidence: 99%

Phycoremediation and Biogas Production Potential of Chlorella Vulgaris Grown in Secondarily Treated Wastewater

Chavan¹,

Mutnuri*²

2019

IJRTE

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Present study aims at exploring parallel nutrient removal from secondarily treated wastewater and biogas production potential of Chlorella vulgaris. The observed growth rate (per day) and doubling time (days) of C. vulgaris was 0.36 and 0.44, respectively. C. vulgaris has removed 31 % COD, 40 % PO4 -P , 36 % NH4 -N and 38 % TKN from secondarily treated wastewater using open raceway pond. The biomass was analyzed for proteins, carbohydrates, Lipids, fibres, TS and VS. The optimum loading rate for maximum biogas yield was found to be 2 g VS/L. Effect of various pre-treatment methods (thermal, chemical, sonication and thermo-chemical) has also been studied. The biomass and biomass extract (before and after pre-treatments) were also analyzed for solubilization of complex compounds. Thermally pre-treated biomass has increased biogas production by 60 % (480 mL/g VS) relative to untreated biomass (350 mL/g VS). This study has successfully demonstrated that microalgal cultivation in wastewater can be easily adopted in currently available wastewater treatment plants without any major modifications of existing available infrastructure

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Tertiary treatment of domestic wastewater by Spirulina platensis integrated with microalgal biorefinery

Cited by 27 publications

References 44 publications

Potential Applications of Native Cyanobacterium Isolate (Arthrospira platensis NIOF17/003) for Biodiesel Production and Utilization of Its Byproduct in Marine Rotifer (Brachionus plicatilis) Production

Potential Applications of Native Cyanobacterium Isolate (Arthrospira platensis NIOF17/003) for Biodiesel Production and Utilization of Its Byproduct in Marine Rotifer (Brachionus plicatilis) Production

Perspectives for improving circular economy in brackish shrimp aquaculture

Phycoremediation and Biogas Production Potential of Chlorella Vulgaris Grown in Secondarily Treated Wastewater

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