Biological reinforcing method of hydrogenogen compensating material cultivation and biological hydrogen production system

Abstract

The invention discloses a fed culture method of hydrogen-producing bacteria and a biological enhancing method of a biological hydrogen producing system, which relates to a method for enhancing bacterial culture and the biological hydrogen producing system. The method solves the problems that the existing fermentation method has the defects of long startup time of a reactor, low hydrogen productivity and sludge loss during continuous operations of the biological hydrogen production. The method comprises the steps: A. hydrogen-producing bacteria are inoculated in nutrient solution in a fermentation tank for anaerobic fermentation; B. after the anaerobic fermentation, a part of fermentation solution is put into a biological hydrogen producing reacting device by a metering pump, and then fresh nutrient solution, which has the same volume as a part of fermentation solution put into the biological hydrogen producing reacting device, is added into the fermentation tank for ongoing anaerobic fermentation, thereby completing the fed culture of hydrogen-producing bacteria and the biological enhancement of the biological hydrogen producing system. The method shortens the startup time of the biological hydrogen producing reactor during the continuous operation to 15 days to 20 days, and increases the hydrogen productivity by 10 percent to 15 percent, thus avoiding the loss of active sludge.

Description

technical field [0001] The invention relates to a method for strengthening bacteria culture and hydrogen production system. Background technique [0002] The demand for energy is increasing day by day. However, the utilization and exploitation of fossil energy such as coal, oil, and natural gas have caused an energy crisis on the one hand, and new environmental problems on the other hand. The development of clean new energy technologies has become the focus of human attention. Hydrogen has entered the world's energy system due to its clean, efficient, renewable, and convenient storage and transportation, and has become a new energy source that has attracted much attention. Among various hydrogen production methods, the use of microorganisms to ferment organic wastewater to produce hydrogen has the characteristics of combining pollution control and production capacity, and has become a technology developed by various countries. Among them, fermentation biohydrogen production...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of long reactor start-up time, low hydrogen production efficiency, and sludge loss in the continuous operation process of the existing fermentation biological hydrogen production, and to provide a hydrogen-producing bacteria feeding culture and biological production method. Bioaugmentation methods for hydrogen systems