The aim is to solve the lower percent of dye utilization and the serious environment pollution problem caused by high salt dosages and residual dyes in dyeing solution.
In the preparation of amino acids through acidic hydrolysis of proteins, high concentration of salt is introduced into the hydrolysate when the residual acid is neutralized.
在用蛋白质酸性水解制备氨基酸时，因中和残留的酸会使水解液中带入大量的盐。
3
There exist the defects of efficiency and residual poison by the application of oxidizing bactericides and the quaternary ammonium salt bactericides that are still widely used at present.