Efficient online measurement system of biological membrane photobioreactor

Abstract

The invention discloses an efficient online measurement system of a biological membrane photobioreactor. The efficient online measurement system comprises a biological membrane photobioreactor system, a biomass concentration and biological membrane thickness sensing system, an FBG (Fiber Bragg Grating) temperature sensing system and a hydrogen concentration and PH (Potential of Hydrogen) sensing system, wherein the biological membrane photobioreactor system comprises a photobioreactor, a reactor light source, a peristaltic pump, a constant-temperature water bath, a culture medium liquid storage bottle, a gas collection bottle, a gas-liquid separation bottle and the like; the biomass concentration and biological membrane thickness sensing system comprises an optical fiber light source, a light filter, multi-mode optical fibers, an optical branching device, an optical coupler, a biomass concentration sensing probe, a biological membrane thickness sensor and the like; the hydrogen concentration and PH sensing system comprises an H2 electrode, a pH reference electrode, a pH electrode and the like. As the sensors for the online measurement of biomass concentration, pH and hydrogen concentration are adopted in the online measurement system, the biomass concentration and the pH in the reactor can be regulated according to the real-time measurement results of the sensors, and the regulated hydrogen producing speed of the biological membrane reactor is improved.

Description

technical field [0001] The invention relates to an online measurement system for a biofilm reactor, in particular to an online measurement system for a high-efficiency biofilm photobioreactor. Background technique [0002] The price of fossil energy continues to rise, and energy shortage has become the primary problem that plagues social development. At the same time, the excessive exploitation of fossil fuels has caused serious damage to the natural environment. Actively developing renewable energy sources that are environmentally friendly and in line with economic development, especially vigorously developing biomass energy to effectively alleviate the pressure of energy shortages, has become a major strategy related to China's sustainable development. need. [0003] Biomass energy resources include energy plants and crops, wood, forest and garden industrial waste, animal manure, etc. Biomass conversion platforms mainly include thermochemical conversion platform and biol...

AI Technical Summary

Problems solved by technology

When the thickness of the biofilm is thin, the biomass holding capacity in the reactor is low, and the hydrogen production capacity of the reactor is low

However, uncontrolled thicker biofilms did not produce more hydrogen than thin biofilms because thicker biofilms, while increasing bioholding, also increased substrate And the transmission resistance of metabolites and the attenuation of light energy, the active biomass in the biofilm is low, and the metabolic pathway of hydrogen production is inhibited

Therefore, both too high and too low biofilm thickness will limit or inhibit the hydrogen production capacity of the reactor

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