A METHOD FOR REMOVING HUMIC SUBSTANCES FROM AN AQUEOUS ALKALINE SOLUTION
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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资源简介：
A method for removing humic substances comprising lignin， other lignin type compounds and their disintegration products from an aqueous alkaline waste water from a bleaching of chemical pulp， which method comprises - obtaining an aqueous alkaline waste water comprising humic substances such as dissolved lignin， and - adding a high cationic starch having a charge density value of at least 1.8 meq/g dry matter of starch derivates determined at pH 7 - 7.5 to the alkaline waste water to precipitate humic substances. A method for removing humic substances comprising lignin， other lignin type compounds and their disintegration products from an aqueous alkaline waste water from a bleaching of chemical pulp， which method comprises - obtaining an aqueous alkaline waste water comprising humic substances such as dissolved lignin， and - adding a high cationic starch having a charge density value of at least 1.8 meq/g dry matter of starch derivates determined at pH 7 - 7.5 to the alkaline waste water to precipitate humic substances.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-12
