机械浆在热碱条件下用H2O2漂白后,释放出来半乳糖醛酸,使浆料的阳离子需求量增加。要降低漂白后阴离子垃圾产生量,纸厂可以采取以下2种方法之一:①对漂白浆进行浓缩并用一些滤水将其清洗入下水道;②加入阳离子化学品中和浆料,使有害物质产生絮聚排除。最近的实验室与中试试验表 Mechanical pulp in the case of hot alkali bleaching with H2O2, the release of galacturonic acid, so that the cationic pulp demand increased. To reduce the generation of anionic waste after bleaching, the paper mill can take one of the following two methods: (1) to concentrate the bleached pulp and use some of the water to clean it into the sewer; (2) add the cationic chemicals to neutralize the pulp to produce harmful substances Flocculation excluded. The recent laboratory and pilot test table