Method for arranging water circulation in a paper mill

Details Method for arranging water circulation in a paper mill Method for arranging water circulation in a paper mill

1997-05-23

1999-10-19

Nguyen, Dean T.

Paper making and fiber liberation

Processes and products

Reclamation, salvage or reuse of materials

162DIG8, 210928, D21F 166

Patent

active

059683171

ABSTRACT:
A method for arranging water circulation in a paper mill including a pulp manufacturing plant provided with a water circulation system, such as a TMP plant, and a paper machine provided with a water circulation system. In order to reduce the amount of fresh water supplied to the paper mill, a part of the amount of fresh water supplied to the paper mill is substituted for by water or waters cleaned locally from waters contaminated at the paper mill. The concentrate or concentrates obtained from the stages of water cleaning is/are utilized where applicable by arranging the concentrate(s) to flow upstream in relation to the raw-material flow for reuse at the paper mill. By means of these operations, the amount of contaminants circulating in the paper mill is controlled.

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