Patent ID: 6673592
Filing Date: 2004-01-06
Classification: A01G,C12M,C12N

Abstract:
A method for continuous culturing of microalgae comprising the steps of providing an open container, providing a culture medium having an aqueous medium and a seed stock of the microalgae in the container, exposing the culture medium to light, maintaining a pH of the culture medium at a fixed level, harvesting a portion of the culture medium at a duration after a predetermined period and adding a replacement seed stock medium to an unharvested portion of the medium, wherein the providing a culture medium step further comprises the step of establishing concentrations of constituent elements in the aqueous medium for unialgal harvesting for promoting optimum growth rates of the microalgae, wherein the container is a tank having an open top, wherein the tank is generally cylindrical having a diameter of about 18 inches and a height of about five feet, and the tank is made of fiberglass material.