Method for mass production of microbial lipids by cultivation of microorganisms originated from waste wastewater

摘要

The present invention relates to a method for producing lipids through the cultivation of oily microorganisms using an organic acid in the drinking water as a substrate by using drinking water, which is a low-cost organic carbon source, and more particularly, a substrate to increase the growth and accumulation of lipids of oily microorganisms. The present invention relates to a method of increasing the energy efficiency of waste resources by controlling the nitrogen content and cultivation conditions of the plant to improve the economic feasibility of lipid production, thereby reducing the cost of drinking water and biodiesel production at low cost. The method for producing lipids using negative waste water according to the present invention comprises the steps of: providing a negative waste water containing oily microorganisms derived from negative waste water; Adjusting the nitrogen concentration of the drinking water containing the oily microorganisms derived from the drinking water; Increasing the lipid content by culturing the mineral wastewater-derived oily microorganisms at a neutral pH in the wastewater having a reduced nitrogen concentration; Separating oil-soluble microorganisms derived from drinking water with increased lipid content; And it includes the step of separating the lipid from the oil-soluble microorganisms derived from the drinking water.