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2011•Advanced materials researchOpen access

A Full-Scale Study on Preozonation of Typical Source Waters in North China

Shang Chao Yue, Qi Shan Wang, Si Si Li, Yi Ran Zhang, Yan Fang Liu, Jin Feng Lu

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Abstract

In this full-scale study, water treatment processes with preozonation were carried out. This work estimated the performence of preozonation of two typical kinds of surface waters in North China, Luan River and Yellow River. UV254, algae, chlorophyll a, Trihalomethanes Formation Potential(THMFP) and Haloacetic Acids Formation Potential(HAAFP) were investigated. In addition, formaldehyde and bromate, which are the main ozonation by-products, were also measured. Results showed that preozonation played an important role in reducing algae, chlorophyll a and UV254. About 33% of THMFP and HAAFP were removed by preozonation. Moreover, the processes applied in this study with preozonation were applicable to different raw water, and the water quality of the effluent was greatly improved. In the final effluent, half of the THMFP and HAAFP were removed. Formaldehyde and bromate were both below the limits(900 μg/L and 10 μg/L, separately).

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What this paper is about

In this full-scale study, water treatment processes with preozonation were carried out. This work estimated the performence of preozonation of two typical kinds of surface waters in North China, Luan River and Yellow River. UV254, algae, chlorophyll a, Trihalomethanes Formation Potential(THMFP) and Haloacetic Acids Formation Potential(HAAFP) were investigated. In addition, formaldehyde and bromate, which are the main ozonation by-products, were also measured. Results showed that preozonation played an important role in reducing algae, chlorophyll a and UV254. About 33% of THMFP and HAAFP were removed by preozonation. Moreover, the processes applied in this study with preozonation were applicable to different raw water, and the water quality of the effluent was greatly improved. In the final effluent, half of the THMFP and HAAFP were removed. Formaldehyde and bromate were both below the limits(900 μg/L and 10 μg/L, separately).

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Available abstract

In this full-scale study, water treatment processes with preozonation were carried out. This work estimated the performence of preozonation of two typical kinds of surface waters in North China, Luan River and Yellow River. UV254, algae, chlorophyll a, Trihalomethanes Formation Potential(THMFP) and Haloacetic Acids Formation Potential(HAAFP) were investigated. In addition, formaldehyde and bromate, which are the main ozonation by-products, were also measured. Results showed that preozonation played an important role in reducing algae, chlorophyll a and UV254. About 33% of THMFP and HAAFP were removed by preozonation. Moreover, the processes applied in this study with preozonation were applicable to different raw water, and the water quality of the effluent was greatly improved. In the final effluent, half of the THMFP and HAAFP were removed. Formaldehyde and bromate were both below the limits(900 μg/L and 10 μg/L, separately).

Key concepts: Bromate, Effluent, Raw water, Environmental science, Water treatment, Environmental engineering, Environmental chemistry, Formaldehyde

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