Washer apparatus with waste water pH neutralization system and m

Details Washer apparatus with waste water pH neutralization system and m Washer apparatus with waste water pH neutralization system and m

1996-11-27

1998-09-22

Silverman, Stanley S.

Cleaning and liquid contact with solids

Processes

Combined

119450, 119458, 119479, 119517, 119527, 134 3, 134 27, 134 28, 134 29, 134 41, 210 961, 210143, 210743, 210749, 364499, 364500, B08B 704

Patent

active

058109439

ABSTRACT:
A washer apparatus (10) includes a washing chamber (W) with a plurality of spray nozzles (N) and a pump (P1) for circulating the washing fluid (F) through the spray nozzles (N) for cleaning the contents of the washing chamber (W). A pH sensor (20) contacts the washing fluid (F) and a digital pH controller (30) connected to the pH sensor (20) generates digital pH values of the fluid (F). An acid neutralizing system (80) and an alkaline neutralizing system (90) are provided for selectively injecting acid neutralizer and alkaline neutralizer into the reservoir (S, T), respectively. An electronic controller (12) controls the operation of the washer (10) and the acid and alkaline neutralizer injection systems (80, 90) in response to the pH of the washing fluid (F) as determined by the digital pH controller (30).

REFERENCES:
patent: 3899294 (1975-08-01), Magiros
patent: 4239493 (1980-12-01), Niemi et al.
patent: 4374681 (1983-02-01), Schuenemen
patent: 4830757 (1989-05-01), Lynch et al.
patent: 5246594 (1993-09-01), Stegemann et al.
patent: 5380485 (1995-01-01), Takahashi et al.
"The Value You Expect", AMSCO Scientific Advertising Brochure, SI-6020, Oct. 1993.
"4000 Series Cage and Rack Washer--AMSCO pH-13 Conductivity Board" 1 pg., 1996.

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