废纸再生废水除硬研究  

Study on the Hardness Removal of Waste Paper-Making Wastewater

作　　者：龚东平 刘含雷 于佳 倪志伟 王丽梅 Gong Dong-ping;Liu Han-lei;Yu Jia;Ni Zhi-wei;Wang Li-mei

机构地区：[1]博瑞德环境集团股份有限公司,江苏南京210048 [2]伊恩艺科(山东)环境科技有限公司,山东济宁272000

出　　处：《化工设计通讯》2022年第3期93-95,共3页Chemical Engineering Design Communications

摘　　要：针对废纸再生过程产生的废水,分析其水质特征后,分别采用Ca(OH)_(2)、NaOH和Na_(2)CO_(3)进行除硬,评估了各自除硬的效果。研究表明,投加硬度的1.4倍摩尔当量(eq)的Na_(2)CO_(3)除硬效果最佳,硬度去除率达到94%,废水残余硬度约200mg/L。Based on the analysis results of waste paper-making wastewater,the efficiency of chemical removal of hardness used Ca(OH)_(2),NaOH and Na_(2)CO_(3)were compared.It was found that Na_(2)CO_(3)with 1.4 mole equivalents (eq) of hardness obtained the best hardness removal efficiency with removal rates by 94%,and the residual hardness of wastewater was about 200mg/L.

关 键 词：废纸再生 废水 硬度 化学除硬 

分 类 号：TS749[轻工技术与工程—制浆造纸工程]