Identification of Heavy Metals and Organic Micropollutants in Drinking Water Sources in Typical Villages and Towns in Northeast China

Wang, Guangyuan; Shen, Jimin; Wei, Shengyue; Cai, Duan; Liu, Jinde

doi:10.3390/molecules27228033

Cited by 4 publications

(5 citation statements)

References 36 publications

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“…In addition, the leaching amount of metal ions in the solution was detected by ICP-MS. The results showed that the leaching amount of Cu 2+ was 0.22 mg/L, much lower than the Chinese Sanitary Standard for Domestic Drinking Water GB 5749-2022 [36]. After five consecutive cycles, the catalysts were analyzed by XRD, and the results are shown in Figure S1.…”

Section: The Recyclability Of Cu/cuo-bcmentioning

confidence: 99%

Cu/CuO-Decorated Peanut-Shell-Derived Biochar for the Efficient Degradation of Tetracycline via Peroxymonosulfate Activation

Zhao,

Li,

Wang

et al. 2023

Catalysts

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Biochar (BC) usually has abundant surface functional groups, well-developed pore structures and high specific surface areas, which can combine with transition metals for peroxymonosulfate (PMS) activation to degrade organics. In this paper, BC modified with Cu/CuO was prepared by a modified impregnation pyrolysis method using peanut shells as raw materials. The morphology, structure and physicochemical properties were analyzed. Results showed that the originally smooth BC surface was modified into a rough structure with distributed metal particles, and the specific surface area of the modified Cu/CuO-BC700 (i.e., Cu/CuO-BC) increased from the initial 22.57 to 192.64 m2/g. The Cu/CuO-BC was employed for PMS activation and tetracycline (TC) degradation, achieving a removal efficiency of 93.2% at TC initial concentration 20 mg/L, PMS concentration 0.5 mM and catalyst dosage 0.1 g/L after 30 min. The influence of co-existing anions in the actual water on TC degradation followed the order of HCO3− > H2PO4− > Cl−, and HA had an inhibitory effect on TC degradation. A variety of active species participated in TC degradation, and the free radical pathway played a dominant role. Furthermore, the Cu/CuO-BC could maintain the degradation efficiency of TC up to 80% even after five consecutive cycles. The Cu/CuO-BC maintained high activity through redox reactions between catalytically generated active species and the cycling of metal ions (Cu+/Cu2+).

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Section: The Recyclability Of Cu/cuo-bcmentioning

confidence: 99%

Cu/CuO-Decorated Peanut-Shell-Derived Biochar for the Efficient Degradation of Tetracycline via Peroxymonosulfate Activation

Zhao,

Li,

Wang

et al. 2023

Catalysts

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“…However, two recent studies conducted in China report the presence of pesticides and flame retardants in the region of Taihu Basin, in which even advanced treatment procedures were inefficient in removing these contaminants (Ren et al, 2020). In the region of northeast China (Heilongjiang, Jilin, and Liaoning provinces), 19 kinds of pesticides, 6 kinds of organophosphates, 2 kinds of phthalates, and 22 kinds of pharmaceutical and personal care product pollutants were found in drinking water samples (Wang et al, 2022).…”

Section: Micropollutants In Domestic Wastewatermentioning

confidence: 99%

Fate of micropollutants

de Oliveira,

Lovato,

Rodrigues

et al. 2024

Anaerobic Treatment of Domestic Wastewater

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Micropollutants (MPs) are biological or chemical compounds resulting from human activities that make their way into water bodies in trace quantities. They cause adverse effects on aquatic environments and their complexity and costly quantification makes them difficult to monitor and, consequently, the implementation of legislation for controlling their disposal. Thus, the aim of this chapter is to describe occurrence, environmental and health impacts, and current regulatory frameworks of MPs. The fate and removal of these contaminants in anaerobic reactors treating domestic wastewater is discussed and strategies for enhancing MP removal are presented. Studies on MP removal in anaerobic systems are still emerging and a great deal of work should be carried out to evaluate whether conventional anaerobic reactors applied to domestic wastewater treatment under usual operating conditions are able to effectively remove contaminants of emerging concern. Transferring the mechanistic understanding of the anaerobic biotransformation of MPs to feasible changes to be implemented in mainstream anaerobic domestic wastewater treatment remains a major challenge. Moreover, the study of new operating strategies and reactor configurations seems to be mandatory to comply with the requirements of removing organic matter, nutrients, and MPs, as well as generating energy (biogas), thus resulting in robust, safe, and sustainable units.

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“…HQ = HQ oral + HQ dermal (7) HQ oral = CDI oral /Rfd oral (8) HQ dermal = CDI dermal /Rfd dermal ( 9)…”

Section: Health Risk Assessment Modelmentioning

confidence: 99%

“…The pollutants in the water environment have become more complex with the development of technology and the intensification of anthropogenic activities [7]. Among the numerous pollutants, heavy metals have attracted global attention for decades due to their non-biodegradability and their high stability and persistence in either the environment or living organisms [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Determination of Heavy Metals and Health Risk Assessment in Tap Water from Wuhan, China, a City with Multiple Drinking Water Sources

Liu,

Tao,

Sun

et al. 2023

Water

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The health issues of urban tap water are of great concern in the context of sustainability challenges to the environmental quality of water and the security of the water supply. In this work, tap water from the main urban areas in Wuhan and surface water from the Yangtze River and the Hanjiang River were collected during summer (June) and winter (December), 2022. The concentrations of 10 heavy metals including Fe, Al, Mn, Co, Ni, Cu, Se, Cd, Cr and Pb were determined for water quality evaluation and health risk assessment. The results demonstrated that almost all of the tap water samples contained metal concentrations below the Chinese national standard limits for drinking water (GB 5749-2022). The risk of heavy metals in tap water to human health was evaluated, and the results showed that the total carcinogenic risk (TCR) was in the range of 10−6 and 10−4 and the hazard index (HI) was much lower than one in both summer and winter. The current tap water in Wuhan is generally in a relatively safe state and will not cause acute hazards or chronic diseases in the short term, but the long-term cancer risk is still noteworthy. The heavy metal pollution index (HPI) showed that the overall water quality of urban drinking water sources in Wuhan has been satisfactory, despite its slightly polluted state in winter. Pipeline corrosion was considered as one of the important sources of heavy metals in Wuhan tap water, which can explain, to a certain extent, the increase in the heavy metal concentrations of tap water outlets relative to the finished water reported by waterworks, such as Fe, Ni, Cd and Pb. This study has implications for the formulation of better urban water supply security management strategies and associated sustainability challenges.

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Identification of Heavy Metals and Organic Micropollutants in Drinking Water Sources in Typical Villages and Towns in Northeast China

Cited by 4 publications

References 36 publications

Cu/CuO-Decorated Peanut-Shell-Derived Biochar for the Efficient Degradation of Tetracycline via Peroxymonosulfate Activation

Cu/CuO-Decorated Peanut-Shell-Derived Biochar for the Efficient Degradation of Tetracycline via Peroxymonosulfate Activation

Fate of micropollutants

Determination of Heavy Metals and Health Risk Assessment in Tap Water from Wuhan, China, a City with Multiple Drinking Water Sources

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