Assessment of heavy metal pollution and water quality characteristics of the reservoir control reaches in the middle Han River, China

Zhang, Junhong; Li, Xincheng; Guo, Lisha; Deng, Zhanfeng; Wang, Dangwei; Liu, Linshuang

doi:10.1016/j.scitotenv.2021.149472

Cited by 94 publications

(17 citation statements)

References 25 publications

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“…Heavy metals, such as Cr, Ni, Cd, Cu, As, and Pb have drawn extensive attention owing to their high carcinogenicity, toxicity, and persistence [4]. One of the major groundwater pollutants is Cr(VI).…”

Section: Introductionmentioning

confidence: 99%

Bio-Stimulated Adsorption of Cr(VI) from Aqueous Solution by Groundnut Shell Activated Carbon@Al Embedded Material

Vaddi¹,

Gurugubelli²,

Koutavarapu

et al. 2022

Catalysts

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In this study, a low-cost bioadsorbent aluminum metal blended with groundnut shell activated carbon material (Al-GNSC) was used for Cr(VI) adsorption from aqueous solutions. Al-GNSC was prepared and characterized using Fourier transform infrared spectrometer (FT-IR), scanning electron microscopic (SEM) and X-ray diffraction (XRD) to determine its surface morphology. Batch studies were performed and the optimum conditions for maximum Cr(VI) removal (of 94.2%) were found at pH 4.0, initial concentration 100 mg/L, adsorbent dosage 8 g/L of Cr(VI) solution, and time of contact 50 min. Moreover, the Langmuir isotherm model (maximum adsorption capacity of 13.458 mg/g) was the best fit and favored the mono-layered Cr(VI) adsorption. The kinetic studies reveal that the pseudo-second-order model was the best fit and favored chemisorption as the rate-limiting step. The desorption study revealed that Cr(VI) leached with sodium hydroxide solution acted as a regenerating agent. It is proved that Al-GNSC removes the Cr(VI) content in groundwater samples. The methodology developed using the Al-GNSC adsorbent as an alternative for the adsorption of Cr(VI) ions is remarkably successful in this study.

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Section: Introductionmentioning

confidence: 99%

Bio-Stimulated Adsorption of Cr(VI) from Aqueous Solution by Groundnut Shell Activated Carbon@Al Embedded Material

Vaddi¹,

Gurugubelli²,

Koutavarapu

et al. 2022

Catalysts

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“…In recent years, the coexistence of antibiotic and heavy metal pollutants has caused widespread concern. Numerous reports have shown that antibiotics and heavy metals enter water environments through domestic sewage and animal excretion and are frequently detected in different rivers and lakes 1,2 . Although trace amounts of antibiotics and heavy metals are necessary for animal growth, the presence of excessive amounts of antibiotics and heavy metals are toxic to the environment and to organisms; they accumulate and become concentrated in the environment over time, and overuse can induce the production of antibiotic-resistance genes (ARGs), metal resistance genes (MRGs) and even multidrug resistance genes in bacteria, potentially harming humans and aquatic animals through the food chain and other means [3][4][5][6][7][8] .…”

Section: Spatial and Temporal Distribution Characteristics Of Antibio...mentioning

confidence: 99%

Spatial and temporal distribution characteristics of antibiotics and heavy metals in the Yitong River basin and ecological risk assessment

Zhao

Wang

Qian

et al. 2023

Sci Rep

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Due to rapid socioeconomic development, antibiotic pollution and heavy metal pollution are receiving increasing amounts of attention. Both antibiotics and heavy metals in the environment are persistent and toxic, and the interactions between the pollutants create potential long-term hazards for the ecological environment and human health as mixed pollutants. In this study, the surface water of the Yitong River in Changchun was used as the research object, and the hazards associated with antibiotics and heavy metals in the surface water were assessed by analyzing the spatial and temporal distribution characteristics of antibiotics and heavy metals and by using ecological risk assessment and human health risk assessment models. The results showed that ofloxacin (OFL) and norfloxacin (NOR) varied seasonally according to the seasonal climate, with total concentrations ranging from 17.65 to 902.47 ng/L and ND to 260.49 ng/L for OFL and NOR, respectively, and from 8.30 to 120.40 μg/L, 1.52 to 113.41 μg/L and 0.03 to 0.04 μg/L for copper (Cu), zinc (Zn) and cadmium (Cd), respectively. In terms of spatial distribution, the concentration of antibiotics in the urban sections, which had intensive human activities, was higher than that in the suburban sections, while the concentration of heavy metals in the suburban sections, which had intensive agricultural operations, was greater than that in the urban section. Ecological risk evaluation showed that NOR and OFL were present in the water bodies at a high-risk level, Cd was at a low pollution level, and the heavy metal Cd was the primary pollutant associated with health risks toward for adults and children, and it was mainly at a medium risk level. Additionally, both antibiotics and heavy metals posed higher health risks for children than for adults.

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“…The EF was calculated and Fe has been used as the normalizing element which reduce the variability of trace metal induce by the mineralogy of the sediments (Zhang et al 2021). The results of EF values for the trace elments were shown in Fig.…”

Section: Pollution Indices Of Trace Metals In Sedimentsmentioning

confidence: 99%

Status of trace metals contamination and ecological risk assessment in intertidal sediments along the Gulf of Guinea.

Kouassi,

Kinimo,

Yao

et al. 2023

Preprint

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Surface sediments from the intertidal area of Côte d’Ivoire were sampled to investigate trace metals (Hg, Cd, Cr, Cu, Pb, Zn, and As) concentrations to illustrate their spatial distribution and ecological risk of pollution. The average total organic carbon content was 2.04 ± 0.01%. Except for Cr and Zn, the spatial distribution exhibited a similar pattern for TOC, Hg, Cd, Cu, Pb, and As. The average concentrations of trace metals were less than their corresponding UCC values, except for Cd and Cr. The pollution indices indicated that sediment quality in the studied area has been impacted by Cd and the Assinie and Bleron sites were the most contaminated. A few ecological risks were posed by Hg, Cd, Cr, and Cu, based on sediment quality guidelines (SQGs). The Pearson correlation showed a significant (p < 0.05) correlation between As, Cd, Pb, Cr, and Hg, suggesting a common origin in sediments. Although this study presents the current status of littoral trace metals contamination level in sediments, further studies should integrate the statistical multivariate approach to determine the anthropogenic sources of the trace metals in the intertidal area of Côte d’Ivoire.

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Assessment of heavy metal pollution and water quality characteristics of the reservoir control reaches in the middle Han River, China

Cited by 94 publications

References 25 publications

Bio-Stimulated Adsorption of Cr(VI) from Aqueous Solution by Groundnut Shell Activated Carbon@Al Embedded Material

Bio-Stimulated Adsorption of Cr(VI) from Aqueous Solution by Groundnut Shell Activated Carbon@Al Embedded Material

Spatial and temporal distribution characteristics of antibiotics and heavy metals in the Yitong River basin and ecological risk assessment

Status of trace metals contamination and ecological risk assessment in intertidal sediments along the Gulf of Guinea.

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