Wastewater-leachate treatment by microalgae: Biomass, carbohydrate and lipid production

Hernández-García, Andrea; Velásquez-Orta, Sharon B.; Novelo, Eberto; Yáñez-Noguez, Isaura; Monje–Ramírez, Ignacio; Ledesma, María Teresa Orta

doi:10.1016/j.ecoenv.2019.02.052

Cited by 151 publications

(48 citation statements)

References 66 publications

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“…18 as TWW replaced BG11 medium. It is consistent with the findings mentioned in another section regarding nitrogen rich medium [27][28][29] . Intracellular sugar presented high content in TWW with KWE compared to TWW without modification.…”

Section: Chlorophylls and Carbohydratessupporting

confidence: 93%

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Utilization of tannery wastewater for biofuel production: New insights on microalgae growth and biomass production

Nagi

et al. 2020

Sci Rep

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Microalgae cultivation on tannery wastewater (tWW) has been examined in some studies as a possible biological application to reduce contamination load and discharge effluents safely. However, Growth aspects, different tolerate strains and enriching the medium were not well investigated. In our study we applied Scenedesmus sp., Chlorella variabilis and Chlorella sorokiniana with different TWW concentrations. C. sorokiniana and C. variabilis cell density, chlorophyll, and sugar content grew substantially as compared to control. C. sorokiniana biomass and total lipids folded three and two times in 25% and 40% TWW, respectively as compared to control. Scenedesmus sp. showed longer lag phase and lower performance compared to the other two strains. Kelp waste extract (KWE) was added to balance the nutrients supply for C. sorokiniana, of which growth and effluents indicators were then greatly promoted in all concentrations. As the lag phase was shortened from 8 to 4 days in 60% concentration, subsequently, chlorophyll, carbohydrates, biomass and total lipids appreciated by 184%, 400%, 162% and 135%, respectively. Furthermore, the COD and ammonium removals improved by 51% and 45%, respectively. These outcomes emphasize the suitability of using TWW for microalgae cultivation with the suitable concentration while adding kelp waste extract for further enhancement.

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Section: Chlorophylls and Carbohydratessupporting

confidence: 93%

“…Higher lipids content in control as a ratio of biomass www.nature.com/scientificreports www.nature.com/scientificreports/ were found in ref. 27 . The authors stated that Stress conditions, nitrogen enrichment and C/N ratio were leading to changes in carbohydrates, protein and lipids fractions.…”

Section: Chlorophylls and Carbohydratesmentioning

confidence: 99%

Utilization of tannery wastewater for biofuel production: New insights on microalgae growth and biomass production

Nagi

et al. 2020

Sci Rep

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“…As phototrophs, the application of such hosts would also eliminate the need for costly carbon sources. Furthermore, many microalgae and cyanobacterial species can be grown in wastewater, where they would utilize harmful nitrogen and phosphorus for growth, resulting in effective bioremediation and a reduced reliance on freshwater (Abedi et al, 2019;Hernández-García et al, 2019). In the case of third generation terpene biojet fuel production the biomass would provide the carbon source for an engineered host (Figure 3).…”

Section: Third and Fourth Generation Feedstocksmentioning

confidence: 99%

Sustainable Production of Microbial Isoprenoid Derived Advanced Biojet Fuels Using Different Generation Feedstocks: A Review

Walls

Rios‐Solis

2020

Front. Bioeng. Biotechnol.

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As the fastest mode of transport, the aircraft is a major driver for globalization and economic growth. The development of alternative advanced liquid fuels is critical to sustainable development within the sector. Such fuels should be compatible with existing infrastructure and derived from second generation feedstocks to avoid competition with food markets. With properties similar to petroleum based fuels, isoprenoid derived compounds such as limonene, bisabolane, farnesane, and pinene dimers are of increasing interest as "drop-in" replacement jet fuels. In this review potential isoprenoid derived jet fuels and progress toward their microbial production was discussed in detail. Although substantial advancements have been achieved, the use of first generation feedstocks remains ubiquitous. Lignocellulosic biomass is the most abundant raw material available for biofuel production, however, technological constraints associated with its pretreatment and saccharification hinder its economic feasibility for low-value commodity production. Non-conventional microbes with novel characteristics including cellulolytic bacteria and fungi capable of highly efficient lignocellulose degradation and xylose fermenting oleaginous yeast with enhanced ligninassociated inhibitor tolerance were investigated as alternatives to traditional model hosts. Finally, innovative bioprocessing methods including consolidated bioprocessing and sequential bioreactor approaches, with potential to capitalize on such unique natural capabilities were considered.

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“…As microalgas são capazes de realizar a depuração do chorume, o que possibilita a reciclagem de nutrientes como nitrogênio e fósforo, e a biomassa resultante pode ainda ser utilizada para obtenção de carboidratos, lipídios e produção de biodiesel (HERNÁNDEZ-GARCÍA et al, 2019;WU et al, 2018).…”

Section: Introductionunclassified

Chorume Como Fonte De Nutriente Na Produção Da Biomassa Microalgal

Postaue

Moraes

Asmus

2020

e-xacta

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A biomassa de microalgas tem apresentado potencial para produção de biodiesel, contudo a viabilidade do cultivo de microalgas depende de fonte de nutrientes de baixo custo. O presente estudo objetivou utilizar o chorume como fonte de nutrientes para microalgas. Os experimentos foram conduzidos visando avaliar a obtenção da biomassa microalgal, conversão de lipídios e rendimento em ésteres metílicos de ácidos graxos, para os meios de cultivos utilizando 5%, 12% e 20% de chorume, com concentrações de 0,02, 0,05 e 0,08 g N. L-1 e para meio de controle contendo 1% de, Nitrogênio (N), Fósforo (P) e Potássio (K), na concentração de 20 g L-1, 5 g L-1 e 20 g L-1, respectivamente. A microalga utilizada neste trabalho foi a de classe Chlorophyceae e família Coccomyxaceae. Os resultados demonstraram que o meio com concentração de 12% de chorume obteve melhores resultados, possibilitando alcançar 1,19 g de biomassa, conversão de 108,15 mg g-1 de lipídios e conteúdo de ésteres de 410,77mg g-1, a microalga utilizada apresentou ainda predominância dos ácidos graxos palmítico e oleico, apresentando baixa quantidade de ácidos graxos saturados o que pode fornecer ao combustível, resistência ao frio. E tais aspectos demonstraram que o chorume pode ser uma fonte promissora de nutrientes para o cultivo das microalgas estudadas. AbstractMicroalgae biomass has presented potential for biodiesel production, however the viability of microalgae cultivation depends on low cost nutrient source. The present study aimed to use leachate as a source of nutrients for microalgae. The experiments were conducted to evaluate the microalgal biomass, lipid conversion and yield in fatty acid methyl esters, for the culture media using 5%, 12% and 20% leachate, with concentrations of 0.02, 0.05 and 0.08 g N. L-1 and for control medium containing 1% Nitrogen (N), Phosphorus (P) and Potassium (K), at a concentration of 20 g L-1, 5 g L-1 and 20 g L-1, respectively. The microalgae used in this work was Chlorophyceae class and Coccomyxaceae family. The results showed that the medium with a concentration of 12% of leachate obtained better results, allowing to reach 1.19 g of biomass, conversion of 108.15 mg g-1 of lipids and esters content of 410,77 mg g-1. The microalgae used also presented predominance of palmitic and oleic fatty acids, presenting low amount of saturated fatty acids which can provide the fuel with cold resistance. And these aspects demonstrated that the leachate can be a promising source of nutrients for the cultivation of the studied microalgae.

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Wastewater-leachate treatment by microalgae: Biomass, carbohydrate and lipid production

Cited by 151 publications

References 66 publications

Utilization of tannery wastewater for biofuel production: New insights on microalgae growth and biomass production

Utilization of tannery wastewater for biofuel production: New insights on microalgae growth and biomass production

Sustainable Production of Microbial Isoprenoid Derived Advanced Biojet Fuels Using Different Generation Feedstocks: A Review

Chorume Como Fonte De Nutriente Na Produção Da Biomassa Microalgal

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