Exploring the dynamics of microalgal diversity in high-rate algal ponds

Krishnamoorthy, Nageshwari; Dey, Baishali; Unpaprom, Yuwalee; Ramaraj, Rameshprabu; Maniam, Gaanty Pragas; Nagarajan, G.; Thirugnanam, A.; Balasubramanian, P.

doi:10.1016/b978-0-12-822956-9.00031-3

Cited by 5 publications

(2 citation statements)

References 145 publications

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“…Traditional closed photobioreactors were developed as a solution to the primary challenges that were present in open or raceway pond culture setups. With the help of photobioreactors, large quantities of microalgal biomass may be grown, and these devices can also be used to develop a single species of microalgae in a way that is environmentally friendly over long periods of time (Nageshwari et al, 2021). The photobioreactor was applied in various sizes and shapes such as tubular, column, vertical, bubble column, airlift, flat inclined, column aeration and multistage continuous flow specification.…”

Section: Cultivation Methods Of Microalgaementioning

confidence: 99%

Production of biofuel from microalgae grown in wastewater- A review

Palanisamy

Bhat

Oteikwu

et al. 2022

Maejo Int. J. Energ. Environ. Comm. or MIJEEC

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There is an urgent demand for an evolution of renewable energy resources due to the rising global energy demand, resource depletion, growing emphasis on reducing climate change, and resource scarcity. Among many resources, Microalgae are thought to be the cleanest alternative feedstock for biofuels and biorefineries because of their advantages of quick growth, effective carbon dioxide fixation, lack of competition for agricultural production and potable water, and the potential to accumulate massive volumes of lipids and carbohydrates. Therefore, this review has discussed the different wastewater which can support and enhance the growth of microalgae, biosynthesis of lipids, production of biofuels from microalgae, and biochemical properties of biofuel. In order to minimize the accumulation of wastewater to protect the environment from pollution, apply wastewater to grow microalgae to achieve the goal of bio circular economy. This review provides clear details and a summary of the production of biofuel from microalgae grown in wastewater.

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Section: Cultivation Methods Of Microalgaementioning

confidence: 99%

Production of biofuel from microalgae grown in wastewater- A review

Palanisamy

Bhat

Oteikwu

et al. 2022

Maejo Int. J. Energ. Environ. Comm. or MIJEEC

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“…These factors influence the composition of microalgae community, and different species of microalgae have different capacities for nutrient removal [64][65][66]. Additionally, the native species of sanitary sewage are well-adapted to that environment, and changes in the community can occur based on different seasons [67,68]. While microalgae have shown to have nutrients available for the development of amaranth, wet microalgae contains smaller amounts of these nutrients.…”

Section: Plos Onementioning

confidence: 99%

Biofertilizers from wastewater treatment as a potential source of mineral nutrients for growth of amaranth plants

Ferreira,

Barrochelo,

de Melo

et al. 2023

PLoS ONE

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Exploring alternative fertilizers is crucial in agriculture due to the cost and environmental impact of inorganic options. This study investigated the potential of sewage-derived biofertilizers on the growth and physiology of Amaranthus cruentus plants. Various treatments were compared, including control treatments with inorganic fertilizer and treatments with biofertilizers composed of microalgae, biosolids and reclaimed water. The following traits were investigated: photosynthetic pigments, gas exchange, growth, and leaf nutrient concentrations. The results showed that the concentrations of N, P, Cu, Fe Zn and Na nutrients, in the dry microalgae and biosolids, were quite high for the needs of the plants. The wet microalgae presented high concentration of Cu, Fe and Zn nutrients while reclaimed water contained high concentration of N, K, Ca and S. Na and Zn nutrients increased in the leaf of plants treated with dry microalgae and biosolid, respectively. At the beginning of the flowering phase, total chlorophyll and carotenoids contents were lower for plants grown with wet microalgae while for plants grown with higher doses of biosolid or reclaimed water total chlorophyll was increased, and carotenoids were not affected. Lower photosynthetic pigments under wet microalgae resulted in lower photosynthetic rates. On the other hand, amendments with dry microalgae and biosolid increased photosynthetic rates with the biosolid being the most effective. Higher applications of biosolid, wet and dry microalgae produced a considerable increase in shoot biomass of amaranth, with the dry microalgae being the most effective. Additionally, reclaimed water obtained after tertiary treatment of sewage with microalgae and biosolids applied alone showed promising effects on plant growth. Overall, these findings suggest that organic fertilizers derived from sewage treatment have the potential to enhance plant growth and contribute to sustainable agricultural practices.

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