Pilot Study on Pre-Ozonation Enhanced Drinking Water Treatment Process

Pei, Yishan; Guo, Zhimou; Yang, Min; Zhang, Jingsong; Hirotsuji, Junji

doi:10.1080/01919510701504017

Cited by 20 publications

(10 citation statements)

References 19 publications

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“…Moreover, this process, when it is used as a pre-oxidant, results in the enhancement of NOM removal by coagulation (Bose and Reckhow 2007;) and GAC filtration (Chen et al 2007;Pei et al 2007). The efficiency of coagulation process in DOC removal depends on coagulant type and treatment conditions, and the reported rates ranged from 29 to 70 % for iron-based coagulants and 25-67 % for aluminum sulfate.…”

Section: Dissolved Organic Carbonmentioning

confidence: 99%

Fate of natural organic matter at a full-scale Drinking Water Treatment Plant in Greece

Papageorgiou

Papadakis

Voutsa

2015

Environ Sci Pollut Res

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The aim of this study was to investigate the fate of natural organic matter (NOM) and subsequent changes during the various treatment processes at a full-scale Drinking Water Treatment Plant (DWTP). Monthly sampling campaigns were conducted for 1 year at six sites along DWTP of Thessaloniki, Northern Greece including raw water from the Aliakmonas River that supplies DWTP and samples from various treatment processes (pre-ozonation, coagulation, sand filtration, ozonation, and granular activated carbon (GAC) filtration). The concentration of NOM and its characteristics as well as the removal efficiency of various treatment processes on the basis of dissolved organic carbon, UV absorbance, specific ultra-violet absorbance, fluorescence intensity, hydrophobicity, biodegradable dissolved organic carbon, and formation potential of chlorination by-products trihalomethanes (THMs) and haloacetic acids (HAAs) were studied. The concentration of dissolved organic carbon (DOC) in reservoir of the Aliakmonas River ranged from 1.46 to 1.84 mg/L, exhibiting variations regarding UV, fluorescence, and hydrophobic character through the year. Along DWTP, a significant reduction of aromatic, fluorophoric, and hydrophobic character of NOM was observed resulting in significant elimination of THM (63%) and HAAs (75%) precursors.

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Section: Dissolved Organic Carbonmentioning

confidence: 99%

Fate of natural organic matter at a full-scale Drinking Water Treatment Plant in Greece

Papageorgiou

Papadakis

Voutsa

2015

Environ Sci Pollut Res

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“…From the tenth Five-Year National Plan (2001)(2002)(2003)(2004)(2005), China has started several big projects concerning drinking water safety, which for the first time included research on preozonation. Preozonation on a bromide-bearing reservoir source water in south China at ozone doses of 0.5-1.0 mg/L (at ozone consumption base) was found to enhance the removals of trihalomethane formation potentials (THMFP) and haloacetic acid formation potentials (HAAFP) by conventional treatment significantly without formation of bromate [46][47][48]. Except for the selective enhancement of the DBPFPs removal, preozonation at an ozone dose of 0.2 mg/L was also found to be very effective in decreasing turbidity and particle number of the filtrate and prolonging the filtration duration.…”

Section: Pretreatment Technologiesmentioning

confidence: 99%

“…These programs focused on the application conditions of ozone and activated carbon, stressing on the control of bromate during ozonation. Figure 8 shows the pilot experimental setup used for advanced treatment study in Shenzhen [46][47][48]. The control of bromate formation during ozonation was first studied in this program.…”

Section: Advanced Treatmentsmentioning

confidence: 99%

Development and application of innovative technologies for drinking water quality assurance in China

Yin

Yang

et al. 2007

Front.Environ.Sci.Eng.China

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The continuously deteriorating quality of source water is threatening the safety of drinking water in China. Various efforts have been made to update water treatment processes to decrease the pollution problems of drinking water, such as protection of drinking water sources, enhancement of conventional treatment processes, and development of new or advanced treatment technologies. This paper reviews a variety of protection and remediation methods for drinking water sources, development and application of drinking water treatment technologies, new technologies for special pollutants removal from groundwater, and the latest research progress on water distribution systems in China.

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“…Studies have shown that the preozonation of water using doses of up to 1.5 mg O 3 /mg TOC, directly removes NOM via mineralisation and evaporation and\or stripping. Based on the TOC value, 6-10% NOM removal can thus be achieved, or 45% based on UV 254 absorbance [3,12].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the impact of ozone pretreatment and powdered activated carbon addition on the removal of natural organic matter by coagulation

Agbaba

Tubić

Dalmacija

et al. 2015

Desalination and Water Treatment

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Snežana Maletić (2014): Investigation of the impact of ozone pretreatment and powdered activated carbon addition on the removal of natural organic matter by coagulation, Desalination and Water Treatment, A B S T R A C TThe main goal of this study was to investigate the effects of ozone oxidation pretreatment and powdered activated carbon (PAC) addition on the efficacy of natural organic matter (NOM) removal by coagulation. Relatively high iron chloride doses from 100 to 200 mg FeCl 3 /L were applied, due to the high dissolved organic carbon (DOC) content (10.27 ± 0.49 mg C/L) of the raw water investigated, with PAC used in doses of 5-30 mg/L. Preozonation was carried out at doses of 0.2-1.3 mg O 3 /mg DOC. Jar test results indicate that baseline coagulation with the optimal coagulant dose (200 mg FeCl 3 /L) achieved was 39% DOC and 54% UV 254 removals. PAC addition improves coagulation efficacy in NOM removal by up to 9% DOC and 25% UV 254 . The best results were obtained in combination with 0.6 mg O 3 /mg DOC, 5 mg/L PAC and 200 mg FeCl 3 /L (removals of 58% DOC and 72% UV 254 ), and were a significant improvement compared to coagulation alone.

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Pilot Study on Pre-Ozonation Enhanced Drinking Water Treatment Process

Cited by 20 publications

References 19 publications

Fate of natural organic matter at a full-scale Drinking Water Treatment Plant in Greece

Fate of natural organic matter at a full-scale Drinking Water Treatment Plant in Greece

Development and application of innovative technologies for drinking water quality assurance in China

Investigation of the impact of ozone pretreatment and powdered activated carbon addition on the removal of natural organic matter by coagulation

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