电絮凝技术对造纸废水污染物的去除研究

doi:10.11894/iwt.2019-0748

工业水处理 ›› 2020, Vol. 40 ›› Issue (7): 37-41. doi: 10.11894/iwt.2019-0748

电絮凝技术对造纸废水污染物的去除研究

宫晨皓^1,²(),黄海鸥^1,*()

1. 北京师范大学环境学院, 北京 100875
2. 北京市科学技术研究院轻工业环境保护研究所, 北京 100095

收稿日期:2019-12-30 出版日期:2020-07-20 发布日期:2020-07-21
通讯作者: 黄海鸥 E-mail:chenhaogong@163.com;huanghaiou@bnu.edu.cn
作者简介:宫晨皓(1985-), 博士, 副研究员。电话:010-68410254, E-mail:chenhaogong@163.com
基金资助:
国家自然科学基金项目(2020619);国家重点实验室联合基金项目(18L01ESPC);北京市联合基金项目(L182030);北京市科学技术研究院改革与发展项目(2018G-6项目)

Research on removal of pollutants from papermaking wastewater by electrocoagulation

Chenhao Gong^1,²(),Haiou Huang^1,*()

1. School of Environment, Beijing Normal University, Beijing 100875, China
2. Environmental Protection Research Institute of Light Industry, Beijing Academy of Science and Technology, Beijing 100095, China

Received:2019-12-30 Online:2020-07-20 Published:2020-07-21
Contact: Haiou Huang E-mail:chenhaogong@163.com;huanghaiou@bnu.edu.cn

摘要/Abstract

摘要：

采用电絮凝工艺对含难降解有机物和重金属的造纸废水进行处理，探究了不同条件下污染物的去除效果，进而分析了污染物的主要去除机制。在优化条件下，有机物的去除率为38.7%。5种荧光组分在降解过程中表现出不同的去除效果，芳香类小分子有机污染物和类色氨酸有机组分的荧光强度分别增加了510%和190%，而类富里酸和类富里酸与类腐殖酸混合物被完全去除。电絮凝对重金属及硬度有去除作用，其中砷、锰和硬度被有效去除。

关键词: 电絮凝, 造纸废水, 难降解有机物, 荧光

Abstract:

The electrocoagulation(EC) was used to treat the papermaking wastewater containing refractory organics and heavy metals. The removal effect of pollutants under different conditions was investigated, and then the main removal mechanism of pollutants was analyzed. Under the optimized conditions, the removal rate of organic matter was 38.7%. The five fluorescent components showed different removal effects during the degradation process. The fluorescence intensity of aromatic small molecule organic pollutants and tryptophan-like organic components increased by 510% and 190%, respectively, while the fulvic acid-like and humic acid-like components were effectively removed. EC was able to remove heavy metals and hardness, in which arsenic, manganese and hardness were effectively removed.

Key words: electrocoagulation, papermaking wastewater, refractory organic matters, fluorescence

中图分类号:

X703

宫晨皓,黄海鸥. 电絮凝技术对造纸废水污染物的去除研究[J]. 工业水处理, 2020, 40(7): 37-41.

Chenhao Gong,Haiou Huang. Research on removal of pollutants from papermaking wastewater by electrocoagulation[J]. Industrial Water Treatment, 2020, 40(7): 37-41.

https://www.iwt.cn/CN/Y2020/V40/I7/37

图/表 6

图1 电极材料对TOC去除率的影响

图2 有效电极面积容积比对TOC去除率的影响

图3 电流密度对TOC去除率的影响

图4 pH对TOC去除率的影响

图5 电絮凝对造纸废水硬度的去除

图6 电絮凝对造纸废水中铬、砷和锰的去除

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