Recovery of dairy manure nutrients by benthic freshwater algae

Wilkie, Ann C.; Mulbry, Walter

doi:10.1016/s0960-8524(02)00003-2

Cited by 300 publications

(134 citation statements)

References 34 publications

(30 reference statements)

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“…Recycling nitrogen, phosphorous and other nutrients is a strategy to address some of these challenges while addressing other ecological issues such as eutrophication. Algae are capable of utilizing nutrients (including, nitrogen and phosphorus) from wastewater and thus could play a key role in nutrient recovery from waste waters [42,51,[214][215][216][217][218][219][220][221]. Maximizing algae production and minimizing costs associated with harvesting are critical to cost-effective nutrient removal system development [222].…”

Section: Algae As a Sustainable Biofuel Sourcementioning

confidence: 99%

Effects of Environmental Factors and Nutrient Availability on the Biochemical Composition of Algae for Biofuels Production: A Review

2013

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Due to significant lipid and carbohydrate production as well as other useful properties such as high production of useful biomolecular substrates (e.g., lipids) and the ability to grow using non-potable water sources, algae are being explored as a potential high-yield feedstock for biofuels production. In both natural and engineered systems, algae can be exposed to a variety of environmental conditions that affect growth rate and cellular composition. With respect to the latter, the amount of carbon fixed in lipids and carbohydrates (e.g., starch) is highly influenced by environmental factors and nutrient availability. Understanding synergistic interactions between multiple environmental variables and nutritional factors is required to develop sustainable high productivity bioalgae systems, which are essential for commercial biofuel production. This article reviews the effects of environmental factors (i.e., temperature, light and pH) and nutrient availability (e.g., carbon, nitrogen, phosphorus, potassium, and trace metals) as well as cross-interactions on the biochemical composition of algae with a special focus on carbon fixation and partitioning of carbon from a biofuels perspective.

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Section: Algae As a Sustainable Biofuel Sourcementioning

confidence: 99%

Effects of Environmental Factors and Nutrient Availability on the Biochemical Composition of Algae for Biofuels Production: A Review

2013

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“…Thus, sustainable and economically acceptable culturing medium for algae-based biodiesel production is still needed (Mandal & Mallick, 2011). Accordingly, several previous studies regarding the use of swine wastes, dairy manure, and other animal residues for the cultivation of microalgae have been carried out (Wilkie & Mulbry, 2002). Cultivation of microalgae in a nutrient-rich effluent as an inexpensive, readily available and cheap medium is expected to overcome the economic dilemma of biodiesel production as well as decrease the environmental problems arising from discharging nutrients into bodies of water.…”

Section: Introductionmentioning

confidence: 99%

Cultivation of Oleaginous Microalgae Scenedesmus obliquus on Secondary Treated Municipal Wastewater as Growth Medium for Biodiesel Production

Eida¹,

Darwesh²,

Matter³

2018

J. Ecol. Eng.

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Local single cell microalgae isolated from a wastewater swamp and identified as Scenedesmus obliquus was used to determine its applicability for utilization of domestic wastewater for biomass and lipid production. Secondary treated domestic wastewater with or without mixing of growth medium was used to cultivate S. obliquus for the biomass and lipid production as a renewable feedstock for biodiesel. S. obliquus showed the highest OD when grown in 100% Bold's basal medium (BBM). S. obliquus utilized 95.2% and 78.5% of P and N contents, respectively, when grown in 25% WW+75% BBM mixture and the utilization efficiency of both elements decreased with the increasing wastewater portion in the mixture. Although the BBM displayed the highest dry biomass and lipid production (25.15% of the cell dry biomass). The lowest values were recorded for the uninoculated wastewater, followed by 100% wastewater enriched with S. obliquus. The obtained data revealed that the lipid classes of S. obliquus differs according to the cultivation medium and conditions. The highest percentage of C16-C18 fatty acids (54.76% from total lipids) were recorded in case of algae cultivated in 100% wastewater, followed by 46.96% in case of 100% BBM medium. These results suggest the utilization of mixtures containing a higher portion of secondary treated wastewater, such as 75% WW+25% BBM or 50% WW+50% BBM, could increase the economical production of the lipid-rich microalgae S. obliquus for biodiesel through saving water and nutrients.

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“…have been concentrated on for their conceivable viability as bioresources for application as fish feed, supplement, human consumption due to their nutritious compounds eg; protein, lipids, carbohydrates and other valuable trace element and additionally for the bioremediation of contaminated water [1][2][3]. In recent years, many researchers have studied the value potential of dual application of microalgae for wastewater treatment and biomass production [4,5]. Unfortunately, wastewater from wet market contain nutrient and elements derived from the fresh foodstuff, waste scraps of poultry and fish entrails which consists of variety components such as nitrogen and phosphorus commonly discharge directly to the drainage without any treatment [6].…”

Section: Introductionmentioning

confidence: 99%

Protein and Lipid Content of Microalgae Scenedesmus sp. Biomass Grown in Wet Market Wastewater

et al. 2017

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Abstract. Microalgae biomass is a type of organism that has various advantages and often used for variety of uses not only for wastewater treatment purposes but also serve as bio-based products development. Because of high in protein and lipid accumulation, this freshwater microalgae Scenedesmus sp. was selected for the present study. In this study, microalgae Scenedesmus sp. was grown in four concentrations of wet market wastewater (10%WM, 15%WM, 20%WM and 25%WM) in comparison with the Bold Basal Medium (BBM) as a control. The result shows that the highest protein content (50.72%) was in 10%WM followed by 15%WM, 20%WM, 25%WM and BBM. As for lipid content, the best concentration was obtained in the 25%WM with the value of 26.7% compared to other concentrations and BBM. Therefore, the result indicates that microalgae Scenedesmus sp. biomass cultured using wet market wastewater has a great potential in producing protein-rich and lipid content which significantly could be used as a fish feed product.

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Recovery of dairy manure nutrients by benthic freshwater algae

Cited by 300 publications

References 34 publications

Effects of Environmental Factors and Nutrient Availability on the Biochemical Composition of Algae for Biofuels Production: A Review

Effects of Environmental Factors and Nutrient Availability on the Biochemical Composition of Algae for Biofuels Production: A Review

Cultivation of Oleaginous Microalgae Scenedesmus obliquus on Secondary Treated Municipal Wastewater as Growth Medium for Biodiesel Production

Protein and Lipid Content of Microalgae Scenedesmus sp. Biomass Grown in Wet Market Wastewater

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