发明名称 |
Method for treating photographic processing fluids prior to sewering thereof |
摘要 |
In a method for separately treating the used developing fluid from the remaining used photographic processing fluids prior to feeding the used fluids to a sewer system. The used developing fluid is continually withdrawn from the developing tank and chemically neutralized in a collecting vessel by a chemical oxidizing agent such as acetic acid or hydrogen peroxide prior to feeding the fluid to a sewer system. The method includes the continued withdrawal of spent fixer fluid to a silver recovery device and recirculation of the regenerated fixer fluid to the fixer tank.
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申请公布号 |
US4128424(A) |
申请公布日期 |
1978.12.05 |
申请号 |
US19770835526 |
申请日期 |
1977.09.22 |
申请人 |
AGFA-GEVAERT AG |
发明人 |
GEYKEN, ERWIN;DAWIDOWITSCH, PETER |
分类号 |
C02F1/66;C02F1/72;C02F9/00;G03C5/31;G03D3/02;G03D3/06;G03D5/04;(IPC1-7):G03D3/02;G03C5/24;C02B1/18 |
主分类号 |
C02F1/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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