Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 11 of 11 for “"algae cultivation"”.
-
Application of Hydrothermal Carbonization, Membrane Distillation, and Algae Cultivation for Sustainable Dairy Manure Treatment
… incorporates hydrothermal carbonization (HTC), algae cultivation, and membrane distillation (MD). HTC converts dairy manure into a low-grade coal that can be used as an energy source, while expelling nutrients into the HTC aqueous product (HAP). The algae can be cultivated on the HAP, where they …
-
Photochemical processes in engineered aquatic systems for remediation of per- and polyfluoroalkyl substances and algae cultivation
… produced reactive species in algal cultivation systems where cells excrete light-absorbing extracellular substances. The production of highly reductive hydrated electrons (eaq−; NHE = −2.9 V) in UV-sulfite treatment has shown promise in the destruction of PFASs. PFASs are a component …
-
Fabrication of TIO₂-embedded PVDF membranes and their application in algae membrane bioreactor systems
… were fabricated and applied for high-density algae cultivation in membrane algae bioreactors (MBR). Microalgae species Chlorella Vulgaris was cultivated in the MBR systems fed with artificial wastewater at a target solids retention time (SRT) of 25 days. Under steady-state conditions, the MBR …
-
Adsorbent-based algal cultivation system to facilitate integration of algal biofuel production with wastewater treatment
Although combining algae cultivation with wastewater treatment has been highlighted as a promising pathway for sustainable biofuels, there are still several challenges that limit the ability to use algae for biological wastewater treatment. First, the treatment performance of an algal wastewater …
-
Regrowth of Chlorella sorokiniana on Recycled Media with Replenished Nutrients
<p>Growth media recycling during algae cultivation is necessary to increase the efficiency and reduce the cost of biofuel production from algae feedstocks. Without recycling media, the cost of algae based biofuel production would be prohibitively high and large scale algae based biofuel production …
-
Lipid Productivity of Algae Grown on Dairy Wastewater as a Possible Feedstock for Biodiesel
… during 1978-1996 concluded that cultivating algae for biofuels was cost prohibitive at that time and that an integrated approach should be studied that combined wastewater treatment with algal biofuel production. Nutrient removal, in particular nitrogen and phosphorus, from wastewater is a …
-
Augmented growth of haematococcus pluvialis using nutrients from post hydrothermal liquefaction wastewater (PHWW)
… study was conducted to evaluate if a high-value algae species, Haematococcus Pluvialis, could be successfully cultivated utilizing nutrients derived from a concentrated wastewater source and produce the potent antioxidant astaxanthin at similar quantities to when it is grown on conventional media …
-
The Sustainability of Biofuels Produced from Microalgae
… Transportation biofuels produced from microalgae are sustainable if GHG emissions are lower than fossil fuels and the sources for materials used during production are sustainable. Four areas were evaluated to address these concerns. First, a study of peer reviewed life-cycle analyses (LCAs) …
-
Effects of Raceway Pond Water and Nutrient Recycling on Microalgae Production and Harvesting
<p>To be environmentally sustainable, algae biofuel production requires extensive recycling of water and nutrients during algae cultivation. Such recycling can be in the form of reuse of external wastewaters, such as from municipal sewers, but, to achieve significant biofuels production, internal …
-
Improving algal biofuel production through nutrient recycling and characterization of photosynthetic anomalies in mutant algae species
… carbon dioxide concentration in the environment. Algae represent a promising new source of feedstock for the production of renewable, carbon neutral, transportation fuels. However, significant economic and technical challenges remain to be solved for scaling-up of algal biofuel production. This …
-
Photochemically produced reactive species generation by extracellular organic matter sensitizers from Chlamydomonas reinhardtii
Microalgae biotechnologies have shown promise as tertiary wastewater treatment processes capable of reducing nitrogen and phosphorous to meet increasingly stringent regulatory limits and as producers of biofuel feedstock. During growth and respiration, microalgae excrete extracellular organic …