Production of Spirulina sp. in sea water supplemented with anaerobic effluents in outdoor raceways under temperate climatic conditions

Olguín, Eugenia J.; Galicia, Sonia; Camacho, Ruth; Mercado, Gabriel; Pérez, T. J.

doi:10.1007/s002530051045

Cited by 46 publications

(15 citation statements)

References 7 publications

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“…(Table 3) with those obtained in other studies using anaerobic effluents and/or reduction in the concentration of the carbon source, it was found that the values of volumetric productivity P V obtained in this study ( (Olguín et al, 1997); in the cultivation of different microalgae in municipal sewage for biofuel production, P V values of between 0.120 and 0.275 g L -1 d -1 were achieved (Zhou et al, 2011).…”

Section: Growth Of Spirulina Sp Leb-18supporting

confidence: 81%

Spirulina sp. LEB-18 culture using effluent from the anaerobic digestion

Borges¹,

Rosa²,

Meza³

et al. 2013

Braz. J. Chem. Eng.

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-The carbon source is the most expensive nutrient for Spirulina production; effluents from anaerobic digestion contain this nutrient in the form of HCO 3 -. The aim of this study was to assess the growth kinetics, composition and fatty acid profile of Spirulina sp. LEB-18 grown in standard Zarrouk medium (NaHCO 3 16.8 g L -1) and in Zarrouk medium replaced with 20% (v/v) effluent with reduced concentrations of NaHCO 3 (5.3 and 2.8 g L -1 ). The use of effluent and lower concentrations of HCO 3 -was found to be an alternative to reduce the costs of Spirulina production, because there were no significant differences in growth parameters (μ max 0.324 -0.354 d -1 ; P max 0.280 -0.297 g L -1 d -1 ), in the different culture medium used. Lipids ranged between 4.9 and 5.0%; the media with effluent had higher levels of linoleic acid compared to the standard medium.

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Section: Growth Of Spirulina Sp Leb-18supporting

confidence: 81%

Spirulina sp. LEB-18 culture using effluent from the anaerobic digestion

Borges¹,

Rosa²,

Meza³

et al. 2013

Braz. J. Chem. Eng.

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“…previous studies describing cultivation of suspended algae with swine effluent after anaerobic pretreatment have reported productivity levels of up to 15-20 DW m −2 d −1 in outdoor ponds (Goh, 1986;Olguin et al, 1997). N:P values of the dried algal biomass in this study ranged from 3.2 to 4.3 and are considerably lower than corresponding values from algal biomass grown using anaerobically digested dairy manure effluent (KebedeWesthead et al, 2003(KebedeWesthead et al, , 2004.…”

Section: Dailymentioning

confidence: 97%

Treatment of swine manure effluent using freshwater algae: Production, nutrient recovery, and elemental composition of algal biomass at four effluent loading rates

2006

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Cultivating algae on nitrogen (N) and phosphorus (P) in animal manure effluents presents an alternative to the current practice of land application. The objective of this study was to determine how algal productivity, nutrient removal efficiency, and elemental composition of turf algae change in response to different loading rates of raw swine manure effluent. Algal biomass was harvested weekly from laboratory scale algal turf scrubber units using four manure effluent loading rates (0.24, 0.40, 0.62 and 1.2 L m −2 d −1 ) corresponding to daily loading rates of 0.3-1.4 g total N and 0.08-0.42 g total P. Mean algal productivity values increased from 7.1 g DW m −2 d −1 at the lowest loading rate (0.24 L m −2 d −1 ) to 9.4 g DW m −2 d −1 at the second loading rate (0.40 L m −2 d −1 ). At these loading rates, algal N and P accounted for > 90% of input N and 68-76% of input P, respectively. However, at higher loading rates algal productivity did not increase and was unstable at the highest loading rate. Mean N and P contents in the dried biomass increased 1.5 to 2.0-fold with increasing loading rate up to maximums of 5.7% N and 1.8% P at 1.2 L m −2 d −1 . Biomass concentrations of Al, Ca, Cd, Fe, K, Mg, Mn, Mo, Si, and Zn increased 1.2 to 2.6-fold over the 5-fold range of loading rate. Biomass concentrations of Cd, K, Pb, and Si did not increase significantly with loading rate. At the loading rate of 0.40 L m −2 d −1 (corresponding to peak productivity) the mean concentrations of individual components in the algal biomass were (in mg kg −

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“…Although Spirulina platensis is the most widely studied photosynthetic microorganism, only a few attempts have been made up to now to utilize it for removal of nutrients from wastewaters. Particularly, its peculiar advantages, among which its preference for strongly alkaline environment that prevents external contamination [20], suggest its employment for environmental applications.…”

Section: Introductionmentioning

confidence: 99%

Ammonium and urea removal by Spirulina platensis

Converti

Scapazzoni

Lodi

et al. 2005

J IND MICROBIOL BIOTECHNOL

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Different concentrations either of ammonium chloride or urea were used in batch and fed-batch cultivations of Spirulina platensis to evaluate the possibility of substituting nitrate by cheaper reduced nitrogen sources in wastewaters biotreatment. The maximum nitrogen concentration able to sustain the batch growth of this microalga without inhibition was 1.7 mM in both cases. Ammonium chloride was limiting for the growth at lower concentrations, whereas inhibition took place at higher levels. This inhibition effect was less marked with urea, likely because the enzymatic hydrolysis of this compound by urease controlled the ammonia transfer into the cell. Fed-batch experiments carried out by pulse-feeding either ammonium or urea proved that the use of these compounds as nitrogen sources can sustain the long term-cultivation of S. platensis, provided that the conditions for their feeding are accurately optimized.

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Production of Spirulina sp. in sea water supplemented with anaerobic effluents in outdoor raceways under temperate climatic conditions

Cited by 46 publications

References 7 publications

Spirulina sp. LEB-18 culture using effluent from the anaerobic digestion

Spirulina sp. LEB-18 culture using effluent from the anaerobic digestion

Treatment of swine manure effluent using freshwater algae: Production, nutrient recovery, and elemental composition of algal biomass at four effluent loading rates

Ammonium and urea removal by Spirulina platensis

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