scholarly journals Comparing Harvest Productivity of the Filamentous Alga Oedogonium with Microalgae

2018 ◽  
Vol 20 (1) ◽  
Author(s):  
Rebecca O'Connell ◽  
Ann C. Wilkie
Keyword(s):  
Carbon Capture ◽  
Filamentous Alga ◽  
Energy Sources ◽  
Open Raceway Pond ◽  
Raceway Pond ◽  
Pond Culture ◽  
Fuel Source ◽  
Recent Attention ◽  
Co2 Addition ◽  
Raceway Ponds

As the planet is faced with depletion of its natural resources, alternative and sustainable energy sources are becoming increasingly sought after.  Research on the growth of algae has revealed their potential for carbon capture to reduce greenhouse gas emissions and for conversion into a fuel source for bioenergy applications.  Filamentous algae have attracted recent attention as an optimal species due to their ease of harvest and dominance over other species.  To determine the most suitable species for future biomass applications, a 1000-L open raceway pond was inoculated with the freshwater filamentous alga, Oedogonium.  The pond culture was harvested weekly to determine the effects of CO2 addition on culture density (mg VSS/L) and harvest productivity (g VSS/m2-day).  An additional two 1000-L raceway ponds with established cultures of microalgae already receiving CO2 were used as a comparison to the growth of Oedogonium.  After 3 weeks, Oedogonium harvest productivity exceeded both microalgal ponds at 13.7 (± 0.2) g VSS/m2-day compared to 9.3 (± 0.7) and 9.5 (± 0.3) g VSS/m2-day for the microalgae.

scholarly journals Growth Kinetic Model for Microalgae Cultivation in Open Raceway Ponds: A System Dynamics Tool

2021 ◽  
Vol 25 (1) ◽  
pp. 1317-1336
Author(s):  
Francesco Romagnoli ◽  
Anton Rayan Priyasad Perera Weerasuriya-Arachchige ◽  
Riccardo Paoli ◽  
Maksims Feofilovs ◽  
Baiba Ievina
Keyword(s):  
System Dynamics ◽  
Large Scale ◽  
Industrial Sector ◽  
Microalgae Cultivation ◽  
Algae Biomass ◽  
Open Raceway Pond ◽  
Raceway Pond ◽  
Microalgae Culture ◽  
Wide Range ◽  
Raceway Ponds

Abstract Microalgae culture has the potential to play an essential role in the application of circular economy principles. Microalgae cultivation allows utilizing industrial side-waste streams while ensuring biomass for a wide range of applications in the industrial sector. Specifically, cultivation in outdoor open raceway ponds are a preferred solution due to low costs, ease of operation and large-scale application. However, the economic viability of the cultivation system largely depends on the amount of biomass produced, the technology implemented and the microalgae species and strains. For this purpose, screening of numerous physical, chemical, and environmental factors affecting microalgae growth must be performed before implementing large-scale microalgae cultivation systems. Furthermore, to obtain the highest biomass yield, the design and operating parameters for open raceway pond cultivation must be investigated in depth. Therefore, this study proposes a kinetic growth model for microalgae cultivation in open raceway ponds based on System Dynamics modelling approach. The proposed model aims at overcoming the major problems of existing growth evaluation tools such as separate assessment of different parameters, high complexity, time consumption and other challenges. The proposed system dynamics model proves to be a simple yet powerful tool for modelling the behaviour of algae biomass in an open raceway pond.

scholarly journals Assessing Renewable Energy Sources for Electricity (RES-E) Potential using a CAPM-Analogous Multi-Stage Model

Energies ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3599 ◽  
Author(s):  
Martinez-Fernandez ◽  
deLlano-Paz ◽  
Calvo-Silvosa ◽  
Soares
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Carbon Capture ◽  
Renewable Energy Sources ◽  
Carbon Capture And Storage ◽  
Offshore Wind ◽  
Energy Sources ◽  
Low Carbon ◽  
Multi Stage ◽  
The Cost

Carbon mitigation is a major aim of the power-generation regulation. Renewable energy sources for electricity are essential to design a future low-carbon mix. In this work, financial Modern Portfolio Theory (MPT) is implemented to optimize the power-generation technologies portfolio. We include technological and environmental restrictions in the model. The optimization is carried out in two stages. Firstly, we minimize the cost and risk of the generation portfolio, and afterwards, we minimize its emission factor and risk. By combining these two results, we are able to draw an area which can be considered analogous to the Capital Market Line (CML) used by the Capital Asset Pricing model (CAPM). This area delimits the set of long-term power-generation portfolios that can be selected to achieve a progressive decarbonisation of the mix. This work confirms the relevant role of small hydro, offshore wind, and large hydro as preferential technologies in efficient portfolios. It is necessary to include all available renewable technologies in order to reduce the cost and the risk of the portfolio, benefiting from the diversification effect. Additionally, carbon capture and storage technologies must be available and deployed if fossil fuel technologies remain in the portfolio in a low-carbon approach.

In situ carbon supplementation in large-scale cultivations of Spirulina platensis in open raceway pond

2012 ◽  
Vol 17 (1) ◽  
pp. 93-99 ◽  
Author(s):  
Yilu Bao ◽  
Ming Liu ◽  
Xia Wu ◽  
Wei Cong ◽  
Zhengxiang Ning
Keyword(s):  
Spirulina Platensis ◽  
Large Scale ◽  
Open Raceway Pond ◽  
Raceway Pond

A study on large scale cultivation of Microcystis aeruginosa under open raceway pond at semi-continuous mode for biodiesel production

2014 ◽  
Vol 172 ◽  
pp. 186-193 ◽  
Author(s):  
Veeramuthu Ashokkumar ◽  
Elango Agila ◽  
Zainal Salam ◽  
Mohanadoss Ponraj ◽  
Mohd Fadhil Md Din ◽  
...  
Keyword(s):  
Microcystis Aeruginosa ◽  
Large Scale ◽  
Biodiesel Production ◽  
Continuous Mode ◽  
Open Raceway Pond ◽  
Raceway Pond ◽  
Large Scale Cultivation

scholarly journals Biofuel and Biochemical Analysis of Amphora coffeaeformis RR03, a Novel Marine Diatom, Cultivated in an Open Raceway Pond

Energies ◽  
2018 ◽  
Vol 11 (6) ◽  
pp. 1341 ◽  
Author(s):  
Muthu Rajaram ◽  
Subramani Nagaraj ◽  
Manubolu Manjunath ◽  
Annakkili Boopathy ◽  
Chidambaram Kurinjimalar ◽  
...  
Keyword(s):  
Biochemical Analysis ◽  
Marine Diatom ◽  
Open Raceway Pond ◽  
Raceway Pond ◽  
Amphora Coffeaeformis

New Pipelines, New Opportunities

2002 ◽  
Author(s):  
Tony Cleveland ◽  
Mike Milinusic
Keyword(s):  
Computer Simulation ◽  
Natural Gas ◽  
Electric Power ◽  
Energy Cost ◽  
Fuel Oil ◽  
Energy Sources ◽  
Pipeline System ◽  
Local Economies ◽  
Direct Replacement ◽  
Fuel Source

The development of new pipeline systems through lands where the primary fuel source has been fuel oil or wood offers unique opportunities for the utilization of natural gas from the pipeline. The use of gas in place of oil can improve local economies; reduce heating and energy cost and lower the emissions produced from energy sources. A computer simulation has been built that can examine all the options for the use of gas from a pipeline system, considering direct replacement of fuel oil with a local gas pipeline system, the generation of electric power — locally or centralized at the pipeline, and the option of using cogeneration with the pipeline compressor stations. The simulation provides both graphic and tabular presentation of the results to show payback and the influence of changes in key parameters. The paper discusses this program and the possible applications to areas hitherto remote from the supply of natural gas for fuel.

Automation of pilot-scale open raceway pond: A case study of CO2-fed pH control on Spirulina biomass, protein and phycocyanin production

2019 ◽  
Vol 33 ◽  
pp. 384-393 ◽  
Author(s):  
Jitendra Mehar ◽  
Ajam Shekh ◽  
Nethravathy M. U. ◽  
R. Sarada ◽  
Vikas Singh Chauhan ◽  
...  
Keyword(s):  
Ph Control ◽  
Pilot Scale ◽  
Open Raceway Pond ◽  
Raceway Pond
Sign in / Sign up

Export Citation Format

Share Document