The Effect of Ozone on Cold Water Coagulation

Jasim, Saad; Ndiongue, S.; Johnson, Bruce A.; Schweitzer, Linda; Borikar, Devendra

doi:10.1080/01919510701753366

Cited by 14 publications

(15 citation statements)

References 2 publications

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“…Details of the pilot plant can be found in Jasim et al (2008). For the present study, the plant was operated at a total flow of 12.4 liters/min (LPM).…”

Section: Pilot Scale Facilitymentioning

confidence: 99%

“…Natural water contains substances and contaminants of different compositions, wide range of sizes, shapes and concentrations, such as pathogens, clay, natural organic matter (NOM), algae and metals. The removal of particulate matter, including the above-mentioned contaminants, thus remains one of the main objectives in drinking water treatment (Jasim et al, 2008). Turbidity is the water quality parameter that has the ability to reflect bulk characteristics of water.…”

Section: Introductionmentioning

confidence: 99%

“…Particle counting data can provide information on particle concentration and size distribution characteristics in raw water as well as in different treatment stages. Size-specific particle counting data can serve as a surrogate measure of filter breakthrough of protozoan cysts and oocysts, and demonstrate overall plant performance (Jasim et al, 2008;Bourgine et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

“…Pre-coagulation ozonation also can effectively reduce coagulant doses by improving particle destabilization and aggregation, decrease the THMs precursors and also improve filtered and settled water turbidity (Farvardin and Collins, 1989;Chang and Singer, 1991;Anderson et al, 1996;Mazloum et al, 2004;Jasim et al, 2008). Moreover, pre-ozonation would decrease filter headloss and subsequently increase filter run times (Amirsardari et al, 1998;Jasim et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, pre-ozonation would decrease filter headloss and subsequently increase filter run times (Amirsardari et al, 1998;Jasim et al, 2008). Potential benefits of pre-coagulation ozonation have also been reflected in particles removal with filtered water having lower particle counts (Anderson et al, 1996;Mazloum et al, 2004;Gaubert et al, 2000;Jasim et al, 2008). Although many inconsistencies in the beneficial effects of ozonation prior to coagulation have been observed, almost invariably, studies suggest that low ozone doses would be more effective compared to higher doses, and that higher doses may even inhibit the coagulation process.…”

Section: Introductionmentioning

confidence: 99%

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Advanced Oxidation Treatment of Drinking Water: Part II. Turbidity, Particles and Organics Removal from Lake Huron Water

Rahman

Jasim²,

Yanful

et al. 2010

Ozone: Science & Engineering

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Pre-coagulation ozonation has been reported to be effective in drinking water treatment processes. Limited data are available on the impact of advanced oxidation processes (AOPs) on Lake Huron water which serves as a primary source of drinking water for many communities around the Great Lakes region. Impact of ozone/hydrogen peroxide based AOP on Lake Huron water was studied. The results show that AOPs can achieve higher particles removal in finished water and deliver improved filtered water turbidity compared to the conventional treatment process. Sharp decline in ultraviolet absorbance at 254 nm (UV 254 ) was observed immediately following AOP treatment while only minimal overall decrease in dissolved organic carbon (DOC) was achieved.

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“…Details of the pilot plant can be found in Jasim et al (2008). For the present study, the plant was operated at a total flow of 12.4 liters/min (LPM).…”

Section: Pilot Scale Facilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Advanced Oxidation Treatment of Drinking Water: Part II. Turbidity, Particles and Organics Removal from Lake Huron Water

Rahman

Jasim²,

Yanful

et al. 2010

Ozone: Science & Engineering

Self Cite

View full text Add to dashboard Cite

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Applications of biofiltration in drinking water treatment – a review

Basu

Dhawan

Black

2015

J of Chemical Tech & Biotech

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Biofiltration is a process in which an otherwise conventional granular filter is designed to remove not only fine particulates but also dissolved organic compounds through microbial degradation. Biofiltration can reduce the need for chemicals in drinking water treatment and thus improved applications of biofiltration in drinking water treatment can be viewed as green or sustainable engineering technology. Recent trends in biofiltration technology for drinking water treatment have or have attempted to extend the performance of biofilters through gaining a better understanding of operational constraints. This review articles summarizes important operational parameters influencing biofiltration performance such as hydraulic loading, empty bed contact time (EBCT), temperature, media type, and backwashing conditions. In addition, recent advancements in biofiltration operations including, ozonation, ammonia removal and the influence of nutrient (nitrogen, phosphorous) supplementation to facilitate carbon removal are explored.

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