Effect of bromide and other factors on brominated trihalomethanes formation in treated water supply in Jordan

Saidan, Motasem N.; Meriç, Süreyya; Rawajfeh, Khaled; Al‐Weshah, Radwan A.; Al-Zu’bi, Salam

doi:10.1080/19443994.2015.1102775

Cited by 14 publications

(4 citation statements)

References 32 publications

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“…The formation of DBPs is strongly dependent on the amount of naturally present humic substances (humic and fulvic acids), generally referred to as TOC [24]. Formation of the DBPs increases with increasing TOC in presence of free Cl 2 residuals [2,4,5]. Therefore, it is necessary to investigate the effect of TOC on Cl 2 decay in the present study.…”

Section: General Correlationmentioning

confidence: 99%

“…Chlorine is predominately used for water treatment disinfection due to its aesthetic quality control, low cost, and broad range of effectiveness [1][2][3][4][5]. Because of its oxidizing potentials, minimum levels of chlorine residual must be maintained in the water distribution system to maintain both chemical and microbial quality of treated water [5][6][7]. Generally, most of chlorine used for disinfection is consumed in the oxidation process and _________________________ a small fraction reacts to form disinfection by-products which are trihalomethanes, haloacetnitrites, chloroketones, chloroacetic acids, cyanogen chloride, chlorophenols [3-5, 8, 9].…”

Section: Introductionmentioning

confidence: 99%

“…The consumption of chlorine in the bulk aqueous phase is generally assumed that the chlorine decays by first order kinetics [10,11]. The effect of bromide ions on shifting the reaction gradually from chlorinated trihalomethanes to brominated ones, as bromide acts like a substituting agent, was investigated in Jordan under specific disinfection conditions, such as reaction time, pH, and temperature [5].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation Of Factors Affecting Bulk Chlorine Decay Kinetics For The Zai Water Supply System In Jordan. Case Study

Saidan

Rawajfeh

Nasrallah

et al. 2017

Environ. Protect. Eng.

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Chlorine decay behavior is significantly variable since it depends on the quality of water and the condition of a distribution system. The effect of various parameters on the bulk chlorine decay kinetics in water samples collected from the Zai water treatment plant in Jordan has been examined. These parameters are reaction time, temperature, TOC, and free chlorine dose. An empirical equation describing the abovementioned effects has been derived. The general trend of chlorine decay decreases upon time and can fairly be represented by first-order decay kinetics. An increase in the value of temperature and TOC parameters has proportional effects on the decay of bulk chlorine. However, the data show that the decay constants were found to be inversely proportional to the initial chlorine concentration. A general correlation for the calculation of bulk chlorine decay rate constant as a function of the parameters in question of this study has been proposed. Consequent predictions are in good agreement with the observed results in this study.

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Section: General Correlationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation Of Factors Affecting Bulk Chlorine Decay Kinetics For The Zai Water Supply System In Jordan. Case Study

Saidan

Rawajfeh

Nasrallah

et al. 2017

Environ. Protect. Eng.

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“…Bromine is an important parameter that determines the type of DBPs formed after disinfection of drinking water samples (Saidan et al, 2016). When bromide is present in the sample, more brominated THMs form due to the formation of hyprobromous acid (HOBr) (Saidan et al, 2016). Bromide was analyzed in this study by following the Ion Chromatography Dionex SM4110B Method.…”

Section: Measurement Of Water Quality Parametersmentioning

confidence: 99%

Impact of Chlorination and Chloramination on Regulated Trihalomethane Formation: Exploring DOC Reactions with Disinfectants

Sohrabifar,

Asadollahi,

Fakhraei

2024

Preprint

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Dissolved organic carbon (DOC) is a critical parameter in water quality management due to interaction with disinfectants, leading to the formation of potentially carcinogenic disinfection by-products (DBPs) during water treatment. Forest ecosystems are key contributors of DOC to surface waters, stemming from soil leachate. This study focuses on the formation of trihalomethanes (THMs), a common group of DBPs, following the chlorination and chloramination of soil-extracted DOC solutions under varying environmental conditions. For this purpose, soil samples from a densely forested upland watershed in Illinois, United States, were processed to extract DOC. The findings indicate notably higher production of THMs through chlorination compared to chloramination. It was observed that total trihalomethane (TTHM) levels significantly elevated with increases in DOC concentration, reaction time, and the dose of disinfectant in both treatment processes. The presence of bromide in the DOC influenced the concentration of brominated THMs (Br-THMs) during chlorination, whereas pH and temperature exhibited a moderate effect on TTHM formation. Furthermore, the study revealed that, except for pH and Specific Ultraviolet Absorbance (SUVA), all tested water quality indicators (DOC, total dissolved solids, turbidity, and UV254) exhibited a strong positive correlation with TTHM levels during chlorination. In contrast, these parameters displayed a moderate to weak correlation with TTHM levels in the chloramination process, suggesting their predictive value for TTHM formation is more pronounced in chlorination treatments.

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Trihalomethanes (THMs) in Wastewater: Causes and Concerns

Kumari¹,

Gupta²

2022

The Handbook of Environmental Chemistry

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Effect of bromide and other factors on brominated trihalomethanes formation in treated water supply in Jordan

Cited by 14 publications

References 32 publications

Evaluation Of Factors Affecting Bulk Chlorine Decay Kinetics For The Zai Water Supply System In Jordan. Case Study

Evaluation Of Factors Affecting Bulk Chlorine Decay Kinetics For The Zai Water Supply System In Jordan. Case Study

Impact of Chlorination and Chloramination on Regulated Trihalomethane Formation: Exploring DOC Reactions with Disinfectants

Trihalomethanes (THMs) in Wastewater: Causes and Concerns

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