Open Raceway Pond
Open Raceway Pond - Related Videos
08:17
Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation
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Cited by 5 •
2020
A protocol is described to utilize the carbon dioxide in natural gas power plant flue gas to cultivate microalgae in open raceway ponds. Flue gas injection is controlled with a pH sensor, and microalgae growth is monitored with real time measurements of optical density.
05:40
Comparison of Scale in a Photosynthetic Reactor System for Algal Remediation of Wastewater
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Cited by 3 •
2017
An experimental methodology is presented to compare the performance of small (100 L) and large (1,000 L) scale reactors designed for algae remediation of landfill wastewater. System characteristics, including surface area to volume ratio, retention time, biomass density, and wastewater feed concentrations, can be adjusted based on application.
06:37
Continuous Hydrologic and Water Quality Monitoring of Vernal Ponds
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Cited by 1 •
2017
Understanding the ecosystem services and processes provided by vernal ponds and the impacts of anthropogenic activities on their ability to provide these services requires intensive hydrologic monitoring. This sampling protocol using in-situ monitoring equipment was developed to understand the impact of anthropogenic activities on water levels and quality.
07:34
Biogas Purification through the use of a Microalgae-Bacterial System in Semi-Industrial High Rate Algal Ponds
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Cited by 1 •
2024
Air pollution impacts the quality of life of all organisms. Here, we describe the use of microalgae biotechnology for the treatment of biogas (simultaneous removal of carbon dioxide and hydrogen sulfide) and the production of biomethane through semi-industrial open high-rate algal ponds and subsequent analysis of treatment efficiency, pH, dissolved oxygen, and microalgae growth.
08:08
Creating a Winogradsky Column: A Method to Enrich the Microbial Species in a Sediment Sample
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2023
Source: Elizabeth Suter1, Christopher Corbo1, Jonathan Blaize1 1 Department of Biological Sciences, Wagner College, 1 Campus Road, Staten Island NY, 10301 The Winogradsky column is a miniature, enclosed ecosystem used for enriching sediment microbial communities, especially those involved in sulfur cycling. The column was first used by Sergei Winogradsky in the 1880s and has since been applied in the study of many diverse microorganisms involved in biogeochemistry, such as photosynthesizers,...
FAQs
The paddlewheel maintains continuous movement through the loop-shaped channel, guiding water and suspended microorganisms around divider walls. This circulation distributes nutrients, carbon dioxide, and sunlight-exposed cells while supporting mixing throughout the cultivation area. Consistent flow is important because the system’s biological performance depends partly on maintaining suitable water movement and preventing uneven conditions within the pond.
Light, temperature, evaporation, water chemistry, and flow all influence cultivation performance. Sunlight supplies the energy needed for photosynthetic growth, while temperature can affect biological activity and culture stability. Evaporation changes water conditions, and variations in chemistry or circulation can alter growth and treatment performance. Regular attention to these factors helps maintain a productive and stable culture.
Nutrients and carbon dioxide support photosynthetic growth by providing key inputs for microalgae and other aquatic biomass. Their availability affects how effectively the suspended organisms develop under sunlight and mixing. In environmental applications, the organisms can also help recover nutrients from wastewater, linking biological growth with treatment objectives rather than treating biomass production and pollution control as separate activities.
Researchers should monitor water chemistry and flow while also observing conditions that affect exposed cultivation, including light, temperature, evaporation, and culture stability. These measurements indicate whether circulation and growth conditions remain suitable and can reveal changes caused by weather or contamination. Monitoring is therefore central to maintaining reproducible experiments and evaluating nutrient recovery or pollutant removal.
Operation requires a shallow outdoor channel with divider walls, a paddlewheel for circulation, and access to sunlight, nutrients, and carbon dioxide. The culture must remain mixed so suspended microorganisms move through the loop. Researchers also need to track water chemistry and flow because environmental exposure, evaporation, and changing weather can affect the system during cultivation.
Researchers may choose this platform when they need a relatively low-cost system for cultivating microalgae or other aquatic biomass outdoors. It is also relevant when the project combines biological production with wastewater nutrient recovery or removal of selected pollutants. The same pond can support studies aimed at biomass for biofuels, other bioproducts, or environmental process research.
Outdoor results may vary because the culture remains exposed to weather and potential contamination. Changes in sunlight, temperature, evaporation, water chemistry, or circulation can influence growth and treatment outcomes. Culture instability may further complicate comparisons between runs. Consequently, researchers should interpret biomass production and pollutant-removal results alongside the monitored environmental and operating conditions.