Patent ID: 8043848

Claim:
A bioreactor comprising: a medium reservoir for storing a culture solution for microorganisms as seed bacteria; a seed bacteria cultivation tank for cultivating the microorganisms to be put in with a mixture of the culture solution supplied from the medium reservoir and micro-nano-bubbles; a biological reaction tank for cultivating the microorganisms with solution supplied from the seed bacteria cultivation tank; a bacteria cell filter for receiving the culture solution from the biological reaction tank and separating the culture solution into bacteria cells and filtrate; a first micro-nano bubble generation tank for receiving the filtrate from the bacteria cell filter and having a micro-nano bubble generator, adding the micro-nano-bubbles to the filtrate by the micro-nano-bubble generator, and introducing the filtrate containing the micro-nano-bubbles into at least the former of the biological reaction tank and the seed bacteria cultivation tank; a filtrate reservoir being a second micro-nano bubble generation tank for receiving the filtrate from the bacteria cell filter and adding the micro-nano-bubbles to the filtrate; and a distiller for receiving the filtrate containing the micro-nano-bubbles from the filtrate reservoir and distilling the filtrate containing the micro-nano-bubbles.