Growth of Tetraselmis suecica in a tubular photobioreactor on wastewater from a fish farm

Michels, Michiel H.A.; Vaskoska, Mitra; Vermuë, M.H.; Wijffels, René H.

doi:10.1016/j.watres.2014.07.017

Cited by 100 publications

(65 citation statements)

References 31 publications

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“…In contrast, the toxicity and intracellular content of MMA and DMA were unaffected by the presence of PO 4 3-. The P levels used in the above studies are close to those observed in the aquaculture (Chopin et al 2012;Michels et al 2014;Posadas et al 2015), so if microalgae are cultivated using water from aquaculture, As accumulation in the algal products may potentially be controlled. However, contrasting conclusions were made on the uptake of As(V) and PO 4 3-in some species of microalgae such as Thalassiosira sp., Chaetoceras sp., Synechococcus, S. costatum and Chattonella antique, which were capable of discriminating between the uptake of As(V) and P, because no major change of cellular As levels had been observed when the ratio of P/As in the cultures ranged from 1:4 to 50:1 (Andreae and Klumpp 1979;Budd and Craig 1981;Morris and McCartney 1984;Yamaoka et al 1996).…”

Section: Arsenic Uptake Into Algal Cellsmentioning

confidence: 60%

Review of arsenic speciation, toxicity and metabolism in microalgae

Wang

et al. 2015

Rev Environ Sci Biotechnol

162

100

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Arsenic is a toxic metalloid and its pollution has become a global environmental problem. This paper reviewed the current knowledge on the speciation, toxicity and metabolism of arsenic in microalgae. A number of arsenic species are present in various microalgae. Due to the great toxicity of inorganic arsenic, microalgae may undergo different processes to reduce the arsenic toxicity, including cell surface binding, arsenite [As(III)] oxidation, arsenate [As(V)] reduction, methylation, transformation into arsenosugars or arsenolipids, chelation of As(III) with glutathione and phytochelatins, as well as excretion from cells. Several genes and enzymes involved in arsenic transformations have been identified and characterized. Many factors, especially nutrient elements (e.g., nitrogen and phosphorus) in cells and in culture, affect arsenic metabolic pathways of microalgae. Arsenic metabolism in the unicellular algae has gained considerable interest because these processes control not only the effectiveness of arsenic phycoremediation, but also the risk of arsenic contamination in algal products. Future research need to focus on (1) the regulative mechanisms of arsenic absorption, biotransformation and excretion at molecular level; (2) the effects of intracellular nutrient dynamics on arsenic speciation; (3) the impacts of culture regime on the arsenic metabolism in microalgae; (4) the transfer of arsenic species across aquatic food web in order to better evaluate the roles of microalgae in arsenic cycling.

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Section: Arsenic Uptake Into Algal Cellsmentioning

confidence: 60%

Review of arsenic speciation, toxicity and metabolism in microalgae

Wang

et al. 2015

Rev Environ Sci Biotechnol

162

100

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“…and Tetraselmis sp. Moreover, wastewater collected from a fish farm of Grovisco, had a N:P ratio equal to 18.4 and used as culture medium for T. suecica [36]. On the contrary, wastewater originated from semi -closed recirculation aquaculture system used for N. oculata and T. chuii cultivation, had lower concentration in both nitrogen and phosphorus than EST [23].…”

Section: Chemical Composition Of Effluent From the Sedimentation Tankmentioning

confidence: 99%

Fish farm effluents are suitable growth media for Nannochloropsis gaditana, a polyunsaturated fatty acid producing microalga

Dourou

Tsolcha

Tekerlekopoulou

et al. 2018

Engineering in Life Sciences

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Fish farm effluents may be used as culture media for marine microalgae, the cell mass of which constitute an excellent fish feed rich in bioactive compounds. In the current investigation different fish farm effluents were tested as culture media for Nannochloropsis strains. Among them, Nannochloropsis gaditana grew well on the effluent released from the sedimentation tank (EST), which is the final step of the wastewater treatment. Mono‐algal but non‐aseptic cultures were conducted in two types of photo‐bioreactors, namely stirred tank reactor (STR) and open pond simulating reactor (OPSR) working under various photoperiods. N. gaditana grew well under full illumination mode on phosphate rich EST in the STR, producing 847.0 mg/L of dry cell mass containing 7.8%, w/w lipids, while when cultivated on phosphate limited EST, cell mass production was slightly lower but lipid biosynthesis was favored, with the lipid content reaching 24.7%, w/w in dry cell mass. In all trials, Nannochloropsis cell mass contained significant quantities of proteins and polysaccharides. Neutral lipids were predominant over polar lipids. Both glycolipid and phospholipid fractions were rich in polyunsaturated fatty acids, especially in eicosapentaenoic acid. We conclude that fish farm wastewaters can be re‐used as microalgae growth media, which is of financial and environmental importance.

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“…High level of nutrients in water columns from fish farming may create favourable conditions for the growth of dinoflagellates (Mente et al 2006) and lead to harmful algal blooms (HAB) which can deplete oxygen level, reduce light penetration, and release toxins associated with paralytic shellfish poisoning. The previous studies by Joseph et al (1988) and Michels et al (2014) had turned problems into opportunities in which integrated aquaculture systems were used to convert waste into algal biomass. The cultivation of microalgae in aquaculture wastewater has been reported where the microalgae may help eliminate excess nutrients from wastewater and produce biomass which can be converted into potential bio-products (Joseph et al 1988;Michels et al 2014).…”

Section: Microalgae Biomass Quality As Fish Feedmentioning

confidence: 99%

“…The previous studies by Joseph et al (1988) and Michels et al (2014) had turned problems into opportunities in which integrated aquaculture systems were used to convert waste into algal biomass. The cultivation of microalgae in aquaculture wastewater has been reported where the microalgae may help eliminate excess nutrients from wastewater and produce biomass which can be converted into potential bio-products (Joseph et al 1988;Michels et al 2014).…”

Section: Microalgae Biomass Quality As Fish Feedmentioning

confidence: 99%

An overview of the utilisation of microalgae biomass derived from nutrient recycling of wet market wastewater and slaughterhouse wastewater

2017

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Microalgae have high nutritional values for aquatic organisms compared to fish meal, because microalgae cells are rich in proteins, lipids, and carbohydrates. However, the high cost for the commercial production of microalgae biomass using fresh water or artificial media limits its use as fish feed. Few studies have investigated the potential of wet market wastewater and slaughterhouse wastewater for the production of microalgae biomass. Hence, this study aims to highlight the potential of these types of wastewater as an alternative superior medium for microalgae biomass as they contain high levels of nutrients required for microalgae growth. This paper focuses on the benefits of microalgae biomass produced during the phycoremediation of wet market wastewater and slaughterhouse wastewater as fish feed. The extraction techniques for lipids and proteins as well as the studies conducted on the use of microalgae biomass as fish feed were reviewed. The results showed that microalgae biomass can be used as fish feed due to feed utilisation efficiency, physiological activity, increased resistance for several diseases, improved stress response, and improved protein retention.

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Growth of Tetraselmis suecica in a tubular photobioreactor on wastewater from a fish farm

Cited by 100 publications

References 31 publications

Review of arsenic speciation, toxicity and metabolism in microalgae

Review of arsenic speciation, toxicity and metabolism in microalgae

Fish farm effluents are suitable growth media for Nannochloropsis gaditana, a polyunsaturated fatty acid producing microalga

An overview of the utilisation of microalgae biomass derived from nutrient recycling of wet market wastewater and slaughterhouse wastewater

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