Title: In-situ treatment method of filter residue of fermented lactic acid
Application Number: 97111365 Application Date: 1997.06.02
Publication Number: 1222570 Publication Date: 1999.07.14
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A23K1/06,C04B18/18,C12F3/00,C12P7/56,C12P9/00
Applicant(s) Name: Huang Yuyan Address: 413503
Inventor(s) Name:
Attorney & Agent:
Abstract:
     The treatment method is that the filter residue is press-filtered a second time at the pressure higher than that in the first press filtration to recover part residual calcium lactate solution and the re-filtered filter residue is made into fertilizer or additive for building material or feed or used as coal substitute in baking brick and cement. The present invention can raise the yield of calcium lactate and lactic acid and eliminate environmental pollution.
Time: 13