Title:
【発明の名称】写真排液の処理
Document Type and Number:
Japanese Patent JPH06510226
Kind Code:
A
Abstract:
PCT No. PCT/EP92/01583 Sec. 371 Date Jan. 21, 1994 Sec. 102(e) Date Jan. 21, 1994 PCT Filed Jul. 13, 1992 PCT Pub. No. WO94/00241 PCT Pub. Date Jan. 6, 1994.It is known to treat the effluent resulting from photographic processing apparatus. Such treatment takes the form of either neutralization where the effluent is mixed with a neutralizing solution prior to disposal, or evaporation where the effluent is heated to form a precipitate and a concentrated liquid portion prior to disposal. However, both these techniques have disadvantages they do not account for toxic particles which may be suspended in the solutions. Described herein is apparatus in which photographic effluent can be treated to provide harmless end products which can be disposed of directly. The apparatus comprises a mixing unit (10) in which the effluent (S1) is mixed with treatment chemicals (S2, S3, S4, P1, P2, P3) and is then passed to a separation unit (20) in which the treated effluent is separated into non-toxic liquid and solid phases. A computer (100) is used to control all stages of the treatment of the effluent.
Inventors:
Glover, Edward Charles Timothy Samuel
Glover, martin stuart
Glover, martin stuart
Application Number:
JP50256793A
Publication Date:
November 17, 1994
Filing Date:
July 13, 1992
Export Citation:
Assignee:
Eastman Kodak Company
International Classes:
C02F1/52; C02F9/00; C22B3/02; G03C5/00; G03C5/31; G03C5/395; G03C11/24; G03F7/30; C02F1/28; C02F1/66; (IPC1-7): C02F1/52; G03C5/00
Attorney, Agent or Firm:
Takashi Ishida (1 person outside)