In some industries, such as pulp and paper, economic methods are not presently available for colour removal.
在纸浆和造纸一些行业，例如，经济的方法目前没有搬迁现有的颜色。
The research content included the renewal of secondary fiber's activity, the effective removal of gluey materials and the bleaching of high-kappa number pulp made of secondary fiber.
研究内容包括：二次纤维活性的恢复、胶粘物的有效去除以及高硬度二次纤维纸浆的漂白。
The lignin removal process(LRP) is a new treatment method of black liquor for middle and small pulp mills.
脱木素工艺为中小制浆企业的黑液治理提供了新的方法。
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