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Bioreactor Design and Operational System

Bioreactors are engineered vessels designed to cultivate microorganisms under controlled conditions for industrial bioprocessing. They maintain sterility and allow precise regulation of pH, temperature, oxygen, and nutrient levels to optimize microbial growth and metabolite production. Bioreactors range from small laboratory units of 1 liter to industrial systems holding up to 500,000 liters, though only about 75% of their volume is actively used for fermentation. The remaining headspace...
Solution Equilibrium and Saturation01:59

Solution Equilibrium and Saturation

Imagine adding a small amount of sugar to a glass of water, stirring until all the sugar has dissolved, and then adding a bit more. You can repeat this process until the sugar concentration of the solution reaches its natural limit, a limit determined primarily by the relative strengths of the solute-solute, solute-solvent, and solvent-solvent attractive forces. You can be certain that you have reached this limit because, no matter how long you stir the solution, undissolved sugar remains. The...
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Maintaining optimal conditions within fermenters is essential for maximizing microbial productivity and ensuring process efficiency. This lesson focuses on key parameters—temperature, foam, pH, carbon dioxide, oxygen, and pressure—and their precise measurement and control strategies in fermentation systems.Temperature ControlTemperature regulation is critical due to the exothermic nature of many fermentation processes. In small laboratory fermenters, temperature is commonly monitored using...
Bioreactor Controls-II01:18

Bioreactor Controls-II

In aerobic fermentations, oxygen is vital for microbial growth and metabolite production. Since air comprises only about 20% oxygen and the gas is poorly soluble in water—just 9 ppm at 20°C—supplying sufficient oxygen becomes a critical challenge, especially in high-demand processes like yeast growth or citric acid production. Even a fully saturated broth may offer only a few seconds of oxygen availability.To address this, sterile or scrubbed air is introduced into the fermentor via a sparger...
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Electrical engineering plays a pivotal role in our daily lives, with control systems at the heart of many applications, from home appliances to sophisticated space shuttles. Control systems manage and regulate the behavior of devices and processes, ensuring they function safely, correctly, and efficiently.
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Video Experimental Relacionado

Updated: Jul 12, 2026

Evaluation of Integrated Anaerobic Digestion and Hydrothermal Carbonization for Bioenergy Production
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Published on: June 15, 2014

El sistema de reactores CANDU: una tecnología apropiada.

J A Robertson

    Science (New York, N.Y.)
    |February 10, 1978
    PubMed
    Resumen

    Los reactores de energía CANDU utilizan tubos de agua pesada y de presión para un combustible de uranio natural eficiente y de bajo costo. Este diseño ofrece beneficios futuros del ciclo de combustible de torio, lo que lo hace adecuado para naciones con capacidad industrial intermedia.

    Área de la Ciencia:

    • Ingeniería Nuclear Ingeniería Nuclear.
    • Ciencia de los materiales Ciencia de los materiales.

    Sus antecedentes:

    • Los reactores CANDU utilizan agua pesada como moderador y tubos de presión para contener el combustible y el refrigerante.
    • Este diseño ofrece una excelente economía de neutrones.

    Objetivo del estudio:

    • Para resaltar las ventajas de los reactores de energía CANDU.
    • Discutir su idoneidad para países con capacidad económica e industrial intermedia.

    Principales métodos:

    • Análisis de las características de diseño del reactor CANDU.
    • Evaluación de las estrategias de abastecimiento de combustible y las implicaciones económicas.

    Principales resultados:

    • Los reactores CANDU permiten un abastecimiento de combustible de uranio natural simple, de bajo costo y de una sola vez.

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  • El potencial para un ciclo de combustible de torio casi reproductor mejora la seguridad del suministro de combustible.

    • Conclusiones:

    • Las características del sistema CANDU lo convierten en una tecnología nuclear apropiada para naciones como Canadá.
    • Ofrece un camino hacia la energía sostenible sin requerir nuevos diseños de reactores como los reproductores rápidos.