The invention discloses a novel production method for
glutamic acid, belonging to the technical field of the production of
amino acid. The novel production method for the
glutamic acid comprises the following steps of: removing thalli and insolubles by means of high-speed disc separation; evaporating and concentrating separated
glutamic acid material liquid through a multi-effect plate type
evaporator at low temperature, wherein the generated secondary steam
condensed water is used for
fermentation ingredients of the glutamic acid; performing continuous isoelectric extraction on the glutamic acid in the evaporated glutamic acid concentrated solution; absorbing the glutamic acid by making supernatant fluid pass through
ion exchange columns; performing isoelectric reextraction on the analyzed glutamic acid; inputting high-concentration
wastewater into a
fertilizer workshop for producing
fertilizer; squeezing heavy phase (
mycoprotein) through a plate frame, and granulating; and
drying through a fluid
bed, and thus producing high-
protein feed. The novel production method for the glutamic acid has the advantages of low unit consumption of
liquid ammonia and
sulfuric acid, high extraction yield of the glutamic acid, less
ion exchange investment and the like; and meanwhile, the purity of the extracted glutamic acid is high,
sodium glutamate can be produced without crystalloblast, resources are fully used in the whole process, the aims of
energy conservation and consumption reduction are achieved, and the novel production method for the glutamic acid has a wide application prospect.