Title:
METHOD FOR TREATING NITROGEN DEFICIENT ORGANIC WASTE WATER, PRODUCTION OF COPOLYESTER FROM SAID WASTE WATER AND APPARATUS THEREFOR
Document Type and Number:
Japanese Patent JP2514131
Kind Code:
B2
Abstract:
PURPOSE: To simultaneously perform the treatment of nitrogen deficient org. waste water not requiring the addition of a nitrogen source from the outside and the efficient production of useful copolyester.
CONSTITUTION: In the biological treatment of nitrogen deficient org. waste water, at first, waste water 20 is guided to an acid fermentation tank 2 and the org. matter in the waste water is decomposed to lower carboxylic acid and the treated waste water is guided to an NH4-N diffusion tank 5 to volatilize and remove NH4-N and subsequently introduced into a nitrogen fixing bacteria culture tank 8 to be treated. Since copolyester 16 is accumulated in the cells of the nitrogen fixing bacteria by the treatment in the tank 8, said polyester is separated and purified.
Inventors:
TOOYA TAISUKE
Application Number:
JP28721491A
Publication Date:
July 10, 1996
Filing Date:
October 08, 1991
Export Citation:
Assignee:
EBARA SEISAKUSHO KK
EBARA SOGO KENKYUSHO KK
EBARA SOGO KENKYUSHO KK
International Classes:
C02F3/34; C08G63/00; C12P7/62; (IPC1-7): C02F3/34; C08G63/00; C12P7/62
Attorney, Agent or Firm:
Katsura Yoshimine (1 person outside)