REDUCING CHEMICAL TRANSFER BETWEEN TREATMENT STAGES

12 188 P 52 4678 CANADA REDUCING CHEMICAL TRANSFER BETWEEN TREATMENT STAGES ABSTRACT OF THE DISCLOSURE A method and apparatus for reducing or eliminating the transfer of chemicals across a washer when reusing washer filtrate as a washing medium in a counterflow system. The flow of washing fluid on t...

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Hauptverfasser: EDWARDS, LOUIS L., JR, VAN SCOTTER, KEITH T, MEREDITH, MICHAEL D
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:12 188 P 52 4678 CANADA REDUCING CHEMICAL TRANSFER BETWEEN TREATMENT STAGES ABSTRACT OF THE DISCLOSURE A method and apparatus for reducing or eliminating the transfer of chemicals across a washer when reusing washer filtrate as a washing medium in a counterflow system. The flow of washing fluid on the washers before and after a treatment stage is split and the liquid in the pulp mat leaving the washer is principally the type used to treat the pulp after the washer, and the filtrate from the washer is principally the type used to treat the pulp before the washer.