Emerging disinfection by-products’ formation potential in raw water, wastewater, and treated wastewater in Thailand

Phatthalung, Warangkana Na; Musikavong, Charongpun

doi:10.1080/10934529.2019.1592532

Cited by 15 publications

(8 citation statements)

References 62 publications

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“…This was attributed to differences in the reaction of HOI/OI − with larger river water NOM molecules and smaller but saturated wastewater organic matter. I-THMFP of treated wastewater was found to be almost 7 times higher than that of river water (Phatthalung and Musikavong 2019 ). Evidently, constituents of an aqueous medium will determine the types of DBPs generated.…”

Section: Fate and Transport Of Cbd S During And After Applicationmentioning

confidence: 86%

Environmental impacts of the widespread use of chlorine-based disinfectants during the COVID-19 pandemic

Parveen

Chowdhury

Goel

2022

Environ Sci Pollut Res

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Chlorinated disinfectants are widely used in hospitals, COVID-19 quarantine facilities, households, institutes, and public areas to combat the spread of the novel coronavirus as they are effective against viruses on various surfaces. Medical facilities have enhanced their routine disinfection of indoors, premises, and in-house sewage. Besides questioning the efficiency of these compounds in combating coronavirus, the impacts of these excessive disinfection efforts have not been discussed anywhere. The impacts of chlorine-based disinfectants on both environment and human health are reviewed in this paper. Chlorine in molecular and in compound forms is known to pose many health hazards. Hypochlorite addition to soil can increase chlorine/chloride concentration, which can be fatal to plant species if exposed. When chlorine compounds reach the sewer/drainage system and are exposed to aqueous media such as wastewater, many disinfection by-products (DBPs) can be formed depending on the concentrations of natural organic matter, inorganics, and anthropogenic pollutants present. Chlorination of hospital wastewater can also produce toxic drug-derived disinfection by-products. Many DBPs are carcinogenic to humans, and some of them are cytotoxic, genotoxic, and mutagenic. DBPs can be harmful to the flora and fauna of the receiving water body and may have adverse effects on microorganisms and plankton present in these ecosystems. Supplementary Information The online version contains supplementary material available at 10.1007/s11356-021-18316-2.

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Section: Fate and Transport Of Cbd S During And After Applicationmentioning

confidence: 86%

Environmental impacts of the widespread use of chlorine-based disinfectants during the COVID-19 pandemic

Parveen

Chowdhury

Goel

2022

Environ Sci Pollut Res

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“…This was followed by effluent from the food industry at 4.60 ± 1.39 mg/L, and lastly, domestic effluent at 4.46 ± 0.37 mg/L. According to the study's findings, Thailand's domestic wastewater revealed the DOC concentrations ranged from 4.8 to 7.0 mg/L [8]. In addition, the concentration of domestic wastewater in Nanjing, China varied between 18.2 and 24.6 mg/L [9 ].…”

Section: Fundamental Physico-chemical Parameters Of Effluent Samplesmentioning

confidence: 91%

“…It has been displayed that following the use of chlorine for disinfection, there is a correlation between the changes in UV254 and SUVA values and the decrease in DOC. This suggests that there is a verified reaction between the organic matter and the disinfectant, resulting in the creation of DBPs [8]. The food industrial wastewater undergoes the most significant decrease in both UV254 and SUVA due to the higher reactivity of organic compounds with chlorine, resulting in the formation of THMs, in comparison to other water sources [12].…”

Section: Suvamentioning

confidence: 99%

Trihalomethane formation potentials from the effluent of different wastewater treatment sources

Phlaengsattra,

Kanokkantapong,

Sangsanont

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Reused wastewater is commonly treated with disinfection to remove pathogenic microorganisms; however, this process generates disinfection byproducts (DBPs), such as trihalomethanes (THMs). This study aimed to investigate the levels of THMs and THM formation potential (THMFP) in treated wastewater originating from different sources i.e., domestic, food-processing industry and hospital. The samples from each source were collected three times between June and August 2023. Dissolved organic carbon (DOC) was evaluated from the samples prior to and after disinfection with chlorine over a period of 7 days. The results found that the concentration of DOC was highest in hospital effluent, with an average value of 5.60±0.16 mg/L followed by effluent from the food-processing industry and domestic, which had average DOC concentrations of 4.60±1.39 mg/L and 4.46±0.37 mg/L, respectively. The concentration of THMs in hospital effluent was found the highest at 6.91±0.88 µg/L followed by effluent from the domestic and food-processing industries, which exhibited amounts of 6.74±0.77 µg/L and 5.25±0.77 µg/L, respectively. In contrast, the food-processing factory had the highest concentration of THMFP at 299.39±26.54 µg/L, while the domestic and hospital effluent displayed a lower concentration of 133.64±36.86 µg/L and 51.48±9.01 µg/L, respectively.

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“…Recently, the concern of HANs increased along with the increase of wastewater impacts on source waters. , A case study on a U.S. watershed highly impacted by wastewater effluents showed that the formation potential of HANs was 3–4 times higher in samples collected downstream of three wastewater treatment plants (WWTPs) than those collected upstream . Another case study in Thailand also reported that the average HAN formation potential of wastewater effluents was 1.1–2.5 times higher than that of the corresponding upstream river waters . HAN formation positively correlates with the concentration of dissolved organic nitrogen (DON), − which has six times higher average concentration in wastewater effluents than in pristine surface water .…”

Section: Introductionmentioning

confidence: 99%

“…6 Another case study in Thailand also reported that the average HAN formation potential of wastewater effluents was 1.1−2.5 times higher than that of the corresponding upstream river waters. 5 HAN formation positively correlates with the concentration of dissolved organic nitrogen (DON), 6−8 which has six times higher average concentration in wastewater effluents than in pristine surface water. 9 Nitrogenous organic compounds such as free amino acids 10,11 and nucleic acids 10 can form DCAN at yields ranging from <0.05% to 1.5% by chlorination.…”

Section: Introductionmentioning

confidence: 99%

Effects of Sunlight on the Formation Potential of Dichloroacetonitrile and Bromochloroacetonitrile from Wastewater Effluents

Kralles

Hart

et al. 2020

Environ. Sci. Technol.

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Sunlight plays an important role in transforming effluent organic matter as wastewater effluents travel downstream, but the corresponding effects on the formation of haloacetonitriles (HANs), a group of toxic disinfection byproducts, in wastewater-impacted surface water have not been thoroughly investigated. In this study, we observed that sunlight preferentially attenuated the formation potential of bromochloroacetonitrile (BCAN-FP) over that of dichloroacetonitrile (DCAN-FP) in chlorine- and UV-disinfected secondary effluents. For four effluent samples from different plants, 36 h of irradiation by simulated sunlight removed 28–33% of DCAN-FP and 41–48% of BCAN-FP. Across a larger set of effluent samples (n = 18), 8 h of irradiation (equivalent to 2–3 d of natural sunlight) decreased the calculated cytotoxicity contributed by dihaloacetonitrile-FP in most samples. Similar behavior was observed for a mixture of wastewater and surface water (volume ratio 1:1). For UV-disinfected effluents, the higher the UV dose, the more likely was there a reduction in DCAN-FP and BCAN-FP in the subsequent sunlight irradiation. Experiments with model compounds showed that fulvic acid and UV photoproducts of tryptophan yield excited triplet-state organic matters during sunlight irradiation and play an important role in promoting the attenuation of HAN precursors.

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Emerging disinfection by-products’ formation potential in raw water, wastewater, and treated wastewater in Thailand

Cited by 15 publications

References 62 publications

Environmental impacts of the widespread use of chlorine-based disinfectants during the COVID-19 pandemic

Environmental impacts of the widespread use of chlorine-based disinfectants during the COVID-19 pandemic

Trihalomethane formation potentials from the effluent of different wastewater treatment sources

Effects of Sunlight on the Formation Potential of Dichloroacetonitrile and Bromochloroacetonitrile from Wastewater Effluents

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