Seasonal variations in humic substances and their reduction through water treatment processes

Author:

Alarcon-Herrera M. T.,Bewtra J. K.,Biswas N.

Abstract

The apparent molecular mass concentrations of dissolved humic substances from the Detroit River and treated water from the Windsor Water Treatment Plant were determined by gel permeation chromatography over a 1-year period. The results of this research show significant seasonal variations in humic substance concentrations and these values are influenced by the turnover of water bodies. The gel permeation chromatograms of the samples indicate that there is a gradual reduction in the concentration of humic substances during the treatment process, the greatest change occurring after coagulation-sedimentation process. In this process, 76%, 40%, and 30% of the high, intermediate, and low molecular mass compounds, respectively, were either transformed in chemical composition or removed. Other parameters such as turbidity, chlorine demand (during prechlorination), and trihalomethanes concentration in the treated water were also analyzed and there appears to be a relationship between them. When the humic substance concentrations are high, generally the turbidity, chlorine demand, and total trihalomethanes concentrations in the drinking water are also high. Key words: water treatment, humic substances, molecular mass distribution.

Publisher

Canadian Science Publishing

Subject

General Environmental Science,Civil and Structural Engineering

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3