臭氧氧化工艺对生化尾水色度的研究
Study on the Color of Biochemical Tail Water by Ozone Oxidation Process
马莉1
作者信息
- 1. 煤炭工业太原设计研究院集团有限公司,山西 太原 030000
- 折叠
摘要
随着工业污水与生活废水排放量的增长,环境污染日益加剧,降低污水对环境的危害迫在眉睫.色度作为污水治理的重要方向之一,逐渐被广泛重视.为了减少污染、提高工业用水再利用率,对污水色度的特征及危害进行了分析,验证了生化尾水色度、CODcr与腐殖酸浓度有关,色度与铁锰离子浓度无关,最终探究了臭氧氧化工艺中臭氧浓度与氧化时间对生化尾水色度去除率的影响,确定了最佳氧化时间为 7 min,最佳臭氧质量浓度为 3.05 mg/L,为后续生化尾水色度去除研究提供了理论基础.
Abstract
With the increase of industrial and domestic wastewater discharge,environmental pollution is becoming increasingly severe,and it is urgent to reduce the harm of sewage to the environment.Chromaticity,as one of the important directions of sewage treatment,has gradually been widely valued.In order to reduce pollution and improve the reuse rate of industrial water,the characteristics and hazards of wastewater chromaticity were analyzed.It was verified that the chromaticity of biochemical wastewater,CODcr,and humic acid concentration were related,and chromaticity was independent of iron and manganese ion concentration.Finally,the influence of ozone concentration and oxidation time on the removal rate of biochemical wastewater chromaticity in ozone oxidation process was explored.The optimal oxidation time was determined to be 7 minutes,and the optimal ozone mass concentration was 3.05 mg/L,providing a theoretical basis for subsequent research on biochemical wastewater chromaticity removal.
关键词
臭氧氧化工艺/生化尾水/色度/CODcr/腐殖酸Key words
ozone oxidation process/biochemical effluent/chromaticity/CODcr/humic acid引用本文复制引用
出版年
2024
NETL
NSTL
万方数据