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Real-time monitoring and automatic density control of large-scale microalgal cultures using near infrared (NIR) optical density sensors

Paper ID Volume ID Publish Year Pages File Format Full-Text
25802 43602 2006 7 PDF Available
Title
Real-time monitoring and automatic density control of large-scale microalgal cultures using near infrared (NIR) optical density sensors
Abstract

Signals from near infrared (NIR) light transmittance sensors were used for both real-time monitoring of algal biomass density in growing mass cultures (200 l tubular biofences), and also as feedback in a system that controlled the density of the culture by automatic injection of fresh growth medium. When operated in a semi-continuous production mode between predefined density values, diurnal growth patterns were recorded on-line that provided information on the dynamics of the microalgal cultures with respect to environmental conditions. The bioreactor system was also programmed to operate in constant biomass density mode, thereby maintaining the culture at the optimal population density (OPD), and sustaining high biomass production levels. The system has potential for operating a dynamic density set point for microalgal cultures where the optimal population density varies as a function of ambient growing conditions.

Keywords
Photobioreactor; Biomass; Optical density sensors; Near infrared (NIR); Microalgae; Nannochloropsis oceanica; Biofence
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Real-time monitoring and automatic density control of large-scale microalgal cultures using near infrared (NIR) optical density sensors
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 122, Issue 2, 23 March 2006, Pages 209–215
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us