Control of the Ozonation by-Products by O₃/BAC in Shanxi Yellow River Water Treatment

Abstract:

While ozonation and biological activated carbon (O₃/BAC) process was widely used in advanced water treatment, the control of ozonation by-product was one of the most important objects in water treatment. In this study, the filtered water of Huyan water plant, treating Yellow River water in Shanxi, was used as the raw water to investigate the control of ozonation by-products and the biological stability by O₃/BAC process. Results showed that the bromate, formaldehyde and AOC concentration of ozonation effluent were increased, yet BAC filter could effectively reduce the concentration of the by-products. When ozone dosage was less than 3.5 mg/L, the bromate of BAC filter effluent was lower than 10 ug/L. And the formaldehyde was less than 20 ug/L in the whole range of ozone dosage. Moreover, the optimal ozone dosage for the highest AOC removal of 63.25% was 2.0 mg/L. The results could provide an operation parameter for Shanxi Yellow River water advanced treatment, thus to ensure the water quality safety.

• Periodical: Advanced Materials Research (Volume 1119)
• Pages: 408-412
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1119.408
• Online since: July 2015
• Authors: Ren Du*, Jian Jun Zhou, Fu Jin Wang, Jian Liu, Xiao Bin Tang, Jian Feng Zou, Yi Xing Yuan, Jun Guo He
• Keywords: AOC, Bromate, Formaldehyde, Ozonation-Biological Activated Carbon Process, Yellow River Water

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