Authors: Kong, Huoliang; Wu, Huifang

Source: Water Environment Research, Volume 81, Number 11, November 2009 , pp. 2381-2386(6)

Publisher: Water Environment Federation

Abstract:

A rapid method to determine chemical oxygen demand (COD) in printing and dyeing wastewater using ultraviolet (UV) spectroscopy was developed in this study. The UV method has several advantages compared to the chemical method, such as shortened analysis time, convenience, no requirement of expensive and toxic reagents, and good reproducibility. It was established that the magnitude of COD and, to a certain extent, pH and suspended solids of the sample have effects on the accuracy and precision of the method. The results showed the fitting range of COD_Cr (COD determined by the dichromate method) was 0 to 360 mg/L⁻¹ And the pH ranged from 2.45 to 9.22. If the UV₃₆₅ (UV absorbance at 365 nm) is measured and is subtracted from UV₂₅₄ (UV absorbance at 254 nm), then the effects of suspended solids was eliminated. A control experiment of COD_Cr determination using the rapid method and the standard dichromate method was carried out, which validated the former.

Keywords: UV absorbance; chemical oxygen demand; and printing and dyeing wastewater

Document Type: Research article

DOI: http://dx.doi.org/10.2175/106143009X426059

Publication date: 2009-11-01

More about this publication?

• Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.
  
  Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
• Editorial Board
• Information for Authors
• Submit a Paper
• Subscribe to this Title
• Membership Information
• Information for Advertisers
• WEF Bookstore
• ingentaconnect is not responsible for the content or availability of external websites

Related content

• In this: publication
• By this: publisher
• In this Subject: Earth and Environmental Sciences ,  General & Civil Engineering ,  Hydraulic & Environmental Engineering
• By this author: Kong, Huoliang ;  Wu, Huifang

Website © Publishing Technology. Article copyright remains with the publisher, society or author(s) as specified within the article.

• Terms and conditions
• Privacy policy
• Information for advertisers