Paper mills have historically used large amounts of water and are also large emitters of sewage. How to reduce the use of paper and reduce the discharge of waste water from paper mills has always been an important issue for papermaking experts.
Then, can paper mills (excluding pulping) do “zero emissions†during the production process?
Judging from the trials of some paper mills at home and abroad, the "zero emissions" of paper mills may not be a dream. In Indonesia, a factory that manufactures imitation bovine cards and corrugated paper has a water consumption of only 6 cubic meters per ton of finished product. The main approach is to use nearly 50% of the treated waste water in raw water after being processed together for production.
The Cissler Pass paper mill in Germany is a small paper mill producing 100 tons of liner paper and corrugated medium paper. The waste water and “sludge†are separately recovered and reused to make no waste water and no sludge. Emissions from the factory.
A paper-making expert from China told the industry that he visited a German 100,000-ton corrugated paper mill. The raw materials are mainly waste paper, and they have also achieved zero emissions. He also said that in Sichuan Province, China has a paper mill that produces cigarette paper, and all water and fillers have been recycled, and zero emissions have been achieved.
As early as 1976, Taiwan's papermaking expert Prof. Xu Qingyun successively published the proposal of “Drainage from paper mills to zero discharge†and published it in a professional magazine.
The main principle is to add chemicals as much as possible to the slurry before the paper machine. This will cause many problems in reducing the recovery of white water, and also make the use of white water and the recovery of the pulp material nearly 100%, thus achieving zero emissions.
Then, can paper mills (excluding pulping) do “zero emissions†during the production process?
Judging from the trials of some paper mills at home and abroad, the "zero emissions" of paper mills may not be a dream. In Indonesia, a factory that manufactures imitation bovine cards and corrugated paper has a water consumption of only 6 cubic meters per ton of finished product. The main approach is to use nearly 50% of the treated waste water in raw water after being processed together for production.
The Cissler Pass paper mill in Germany is a small paper mill producing 100 tons of liner paper and corrugated medium paper. The waste water and “sludge†are separately recovered and reused to make no waste water and no sludge. Emissions from the factory.
A paper-making expert from China told the industry that he visited a German 100,000-ton corrugated paper mill. The raw materials are mainly waste paper, and they have also achieved zero emissions. He also said that in Sichuan Province, China has a paper mill that produces cigarette paper, and all water and fillers have been recycled, and zero emissions have been achieved.
As early as 1976, Taiwan's papermaking expert Prof. Xu Qingyun successively published the proposal of “Drainage from paper mills to zero discharge†and published it in a professional magazine.
The main principle is to add chemicals as much as possible to the slurry before the paper machine. This will cause many problems in reducing the recovery of white water, and also make the use of white water and the recovery of the pulp material nearly 100%, thus achieving zero emissions.
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