Spatio-temporal evaluation of organic contaminants and their transformation products along a river basin affected by urban, agricultural and industrial pollution

Gómez, María José; Herrera, Sonia; Solé, David; García‐Calvo, Eloy; Fernández‐Alba, Amadeo R.

doi:10.1016/j.scitotenv.2012.01.029

Cited by 99 publications

(48 citation statements)

References 37 publications

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“…Indeed, higher concentrations of PhACs including CBZ was reported in surface water bodies during dry weather as compared to that observed in wet weather [86]. In a study by Wang et al [87], CBZ concentration in surface water was lower in samples that were collected during summer than those collected during winter.…”

Section: Surface Watermentioning

confidence: 91%

Carbamazepine as a Possible Anthropogenic Marker in Water: Occurrences, Toxicological Effects, Regulations and Removal by Wastewater Treatment Technologies

Hai

Yang

Asif

et al. 2018

Water

129

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Carbamazepine (CBZ), a pharmaceutical compound, has been proposed as an anthropogenic marker to assess water quality due to its persistence in conventional treatment plants and widespread presence in water bodies. This paper presents a comprehensive literature review on sources and occurrences of CBZ in water bodies, as well as toxicological effects and regulations of the drug. Given the documented side effects of CBZ on the human body when taken medicinally, its careful monitoring in water is recommended. CBZ residues in drinking water may provide a pathway to embryos and infants via intrauterine exposure or breast-feeding, which may cause congenital malformations and/or neurodevelopmental problems over long term exposure. An in-depth technical assessment of the conventional and advanced treatment technologies revealed the inadequacy of the standalone technologies. Compared to conventional activated sludge and membrane bioreactor processes, effective removal of CBZ can be achieved by nanofiltration and reverse osmosis membranes. However, recent studies have revealed that harsh chemical cleaning, as required to mitigate membrane fouling, can often reduce the long-term removal efficiency. Furthermore, despite the efficient performance of activated carbon adsorption and advanced oxidation processes, a few challenges such as cost of chemicals and regeneration of activated carbon need to be carefully considered. The limitations of the individual technologies point to the advantages of combined and hybrid systems, namely, membrane bioreactor coupled with nanofiltration, adsorption or advanced oxidation process.

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Section: Surface Watermentioning

confidence: 91%

Carbamazepine as a Possible Anthropogenic Marker in Water: Occurrences, Toxicological Effects, Regulations and Removal by Wastewater Treatment Technologies

Hai

Yang

Asif

et al. 2018

Water

129

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“…It has been reported that the OPAHs can be also produced by the oxidation of PAHs (Tsapakis and Stephanou, 2007). A previous study demonstrated that the AQ was an important transformation product of Ant in the aquatic environment (Gómez et al, 2012). Solar radiation might be a factor influencing the transformation (Fan et al, 1996), which could explain the higher concentrations of OPAHs in the non-heating season.…”

Section: Seasonal Variation In the Dissolved Phase Samplesmentioning

confidence: 98%

Oxygenated, nitrated, methyl and parent polycyclic aromatic hydrocarbons in rivers of Haihe River System, China: Occurrence, possible formation, and source and fate in a water-shortage area

Qiao

Liu

et al. 2014

Science of The Total Environment

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• Methyl-PAHs, oxy-PAHs, and PAHs were detected in rivers, but no nitro-PAHs.• 2-MN, 9-FL, and AQ were the three highest-concentration SPAHs.• OPAHs were possibly transformed from the PAHs especially at higher temperature.• Wastewater treatment plant effluent was the major source for the SPAHs and PAHs.• The major amount of SPAHs and PAHs entered the farmland through irrigation. a b s t r a c t a r t i c l e i n f o Substituted polycyclic aromatic hydrocarbons (SPAHs) occur ubiquitously in the whole global environment as a result of their persistence and widely-spread sources. Some SPAHs show higher toxicities and levels than the corresponding PAHs. Three types of most frequently existing SPAHs, oxygenated-PAHs (OPAHs), nitrated-PAHs (NPAHs), and methyl-PAHs (MPAHs), as well as the 16 priority PAHs were investigated in this study. The purpose was to identify the occurrence, possible transformation, and source and fate of these target compounds in a water shortage area of North China. We took a river system in the water-shortage area in China, the Haihe River System (HRS), as a typical case. The rivers are used for irrigating the farmland in the North of China, which probably introduce these pollutants to the farmland of this area. The MPAHs (0.02-0.40 μg/L in dissolved phase; 0.32-16.54 μg/g in particulate phase), OPAHs (0.06-0.19 μg/L; 0.41-17.98 μg/g), and PAHs (0.16-1.20 μg/L; 1.56-79.38 μg/g) were found in the water samples, but no NPAHs were detected. The concentrations of OPAHs were higher than that of the corresponding PAHs. Seasonal comparison results indicated that the OPAHs, such as anthraquinone and 2-methylanthraquinone, were possibly transformed from the PAHs, particularly at higher temperature. Wastewater treatment plant (WWTP) effluent was deemed to be the major source for the MPAHs (contributing 62.3% and 87.6% to the receiving river in the two seasons), PAHs (68.5% and 89.4%), and especially OPAHs (80.3% and 93.2%) in the rivers. Additionally, the majority of MPAHs (12.4 kg, 80.0% of the total input), OPAHs (16.2 kg, 83.5%), and PAHs (65.9 kg, 93.3%) in the studied months entered the farmland through irrigation.

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“…The fate study on MCs in rivers reveled that natural attenuation of MCs is the result of river water dilution, or sorption to solids, and not degradation (Gómez et al, 2012). Carbamazepine, sulfamethoxazole, caffeine and TCS were the most commonly detected compounds in groundwater with reported concentration of less than 100 ng/L.…”

Section: Occurrence and Transformation Of Mcs In The Environmentmentioning

confidence: 99%

General Fate Model for Microconstituents in an Activated Sludge System

Banihashemi¹,

Droste²

2016

proc water environ fed

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Spatio-temporal evaluation of organic contaminants and their transformation products along a river basin affected by urban, agricultural and industrial pollution

Cited by 99 publications

References 37 publications

Carbamazepine as a Possible Anthropogenic Marker in Water: Occurrences, Toxicological Effects, Regulations and Removal by Wastewater Treatment Technologies

Carbamazepine as a Possible Anthropogenic Marker in Water: Occurrences, Toxicological Effects, Regulations and Removal by Wastewater Treatment Technologies

Oxygenated, nitrated, methyl and parent polycyclic aromatic hydrocarbons in rivers of Haihe River System, China: Occurrence, possible formation, and source and fate in a water-shortage area

General Fate Model for Microconstituents in an Activated Sludge System

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