Study of adsorption of copper, lead, and zinc in their various chemical forms from the sediments of the Brahmaputra river, Assam, India

Das, Hitesh; Deka, Jahnabi; Singh, Anmol; Barman, Pranjit

doi:10.1002/tqem.21763

Cited by 6 publications

(5 citation statements)

References 43 publications

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“…In many literature data, it is pointed out that the distribution of Cu by fractions in sediments changes independently of the pH value (which mostly ranges from 6 to 8 for the sediment). [ 41–45 ] The obtained results indicate that significant amounts of Cu are present in the mobile fractions, based on which we can conclude that half of the Cu present is of anthropogenic origin. A similar finding was published by Huang et al.…”

Section: Resultsmentioning

confidence: 73%

“…In many literature data, it is pointed out that the distribution of Cu by fractions in sediments changes independently of the pH value (which mostly ranges from 6 to 8 for the sediment). [41][42][43][44][45] MV, measured value (mg kg -1 ); CV, corrected value (mg kg -1 ). [24] TA B L E 3 Changes in pH values before and after electrokinetic treatments.…”

Section: General Characteristics Of the Sedimentmentioning

confidence: 99%

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Copper removal from sediment by electrokinetic treatment with electrodes in a hexagonal configuration

Duduković

Beljin

Dubovina

et al. 2023

CLEAN Soil Air Water

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This study was conducted to examine the effectiveness of removing Cu from sediment by electrokinetic (EK) treatment with electrodes in a hexagonal configuration, and whether water leached can be reused. Three experiments were performed (e1: continuous application of electricity, e2: no electricity at night, e3: application of solar panels) to evaluate the impact of the absence of electricity during night and the variations that may occur during the day when solar panels were used on the efficiency of the treatment. At the end of the treatments, 2-13% more Cu was detected in the cathode region (locations 5 and 10) compared to the initial concentration. Furthermore, based on the calculated mass balance, we concluded that Cu was bound to the electrode surface. In the remaining EK cell locations, the Cu content was reduced by 50-60% for e1, e2, and e3. For field application, treatment e3, in which solar panels are applied, is recommended, since there are no significant differences in the achieved efficiencies. A significant advantage of the treatment from an ecological point of view is reflected in the absence of an acidification effect. In this study, we also applied a model which showed satisfactory agreement with the experimental results. Analyses of leached water after electrokinetic treatments, e1, e2, e3, indicate that this water has a potential for irrigation use of agricultural land, aiming to meet the goals of the circular economy.

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Section: Resultsmentioning

confidence: 73%

“…In many literature data, it is pointed out that the distribution of Cu by fractions in sediments changes independently of the pH value (which mostly ranges from 6 to 8 for the sediment). [41][42][43][44][45] MV, measured value (mg kg -1 ); CV, corrected value (mg kg -1 ). [24] TA B L E 3 Changes in pH values before and after electrokinetic treatments.…”

Section: General Characteristics Of the Sedimentmentioning

confidence: 99%

Copper removal from sediment by electrokinetic treatment with electrodes in a hexagonal configuration

Duduković

Beljin

Dubovina

et al. 2023

CLEAN Soil Air Water

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“…Very high concentrations of Mn in sediment were measured in Mogpog and Boac in 2019, with highest Mn at midstream in Mogpog (2948.61 mg/kg) and at the most upstream in Boac (3068.79 mg/kg). High Mn concentrations can be retained in river sediments due to their small particle size and corresponding high surface area that can adsorb metal concentration [30]. In 2021 and 2022, sediment Mn concentrations decreased along both rivers, with highest concentrations shifted to downstream (Mogpog) and midstream (Boac), suggesting sediment movement.…”

Section: Discussionmentioning

confidence: 99%

“…Adsorption-desorption also plays a very important role in the transport of metals in rivers, with metals being adsorbed and desorbed in the sediments and water [28,29]. Due to their small particle size and higher surface area, sediments can adsorb higher concentrations of heavy metals [30], meaning metals elevation can be correlated to the amount of sediment present in the river. Therefore, if river morphology causes higher amounts of sediment in certain zones, then higher accumulation of metals can also occur [31].…”

Section: Introductionmentioning

confidence: 99%

Spatio-Temporal Assessment of Manganese Contamination in Relation to River Morphology: A Study of the Boac and Mogpog Rivers in Marinduque, Philippines

2023

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This study investigates the contribution of river morphology towards the occurrence of manganese (Mn) in both sediment and surface water (SW), considering the temporal climatic and spatial conditions. The Boac and Mogpog rivers on the island province of Marinduque, Philippines, were examined in this study. These rivers are downstream of the two abandoned open mine pits at San Antonio and Tapian, where mining disasters occurred in 1993 and 1996, respectively. Field sampling programs were conducted in 2019, 2021 and 2022 to measure the Mn concentrations in sediment and SW, and the physicochemical parameters in SW during the same sampling event. Geographic Information System (GIS) tools were employed to characterize the morphology of each river, specifically river slope, river bends, sinuosity, and channel width and length. The Boac and Mogpog rivers were divided into 22 and 15 river segments, respectively, to account for spatial heterogeneity of all parameters. Correlation (r) analysis on the average Mn concentration and river morphology within each segment was performed and indicated that river bends (Boac r = 0.421, Mogpog r = 0.356) and sinuosity (Boac r = 0.403, Mogpog r = 0.352) had the highest correlation with Mn concentrations in sediment. While river slope (Boac r = 0.716, Mogpog r = 0.282) and sinuosity (Boac r = 0.505, Mogpog r = 0.257) were the highest for Mn in SW. This confirmed that the planform of the river affected the accumulation of Mn due to its effect on sediment deposition along the river and its potential to adsorb and/or desorb metals. Furthermore, the pH of SW also directly correlated with sediment Mn (r = 0.293), and inversely correlated with SW Mn (r = −0.465), which was expected as acidic water promotes the release of metals from sediments to SW. The results from this study will aid local government, environmental engineers and managers in their mitigation program through identification of the areas and segments in the river that contain the highest and the least contamination. This is to optimize financial and human resources during river system remediation and monitoring. Data and information extracted from this study are useful in other areas of similar condition.

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“…The samples were analyzed for the existence of certain heavy metals using a flame atomic absorption spectrometer (AAS, GBC-932, Australia). To ensure the highest levels of accuracy, three replicates of each measurement were performed, with variations between them not exceeding 3% (Das et al, 2022).…”

Section: Sampling and Analysismentioning

confidence: 99%

Impact of heavy metals on aquatic life and human health: a case study of River Ravi Pakistan

Ahamad,

Yao,

Ren

et al. 2024

Front. Mar. Sci.

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Heavy-metal contamination in river and ocean is a critical environmental issue that endangers marine ecosystems and human health. Therefore, conducting extensive research to devise effective mitigation measures is imperative. Sediment samples were taken randomly throughout the study area. Analysis was done to determine the presence of different metals, including arsenic, cadmium, chromium, nickel, copper, zinc, lead, and manganese. The assessment of different pollution levels was done by using various pollution indicators including “geo-accumulation index (Igeo), contamination factor (CF), enrichment factor (EF)” for accuracy. The Igeo measurement for Cd indicated varying pollution, ranging from moderate to significantly polluted, while Mn revealed no contamination. Elements such as Ni, Cr, Cu, and Zn showed a moderate level of contamination. The contamination factor values exhibited a range of 0.436 (Pb) to 7.637 (Cd), with average values spanning from 0.9176 (Mn) to 4.9714 (Cd), suggesting significant regional variation. EF exhibits a pattern of contamination comparable to that of Igeo. The noncarcinogenic risk associated with exposure to Cd and As exceeded the higher limit (HI > 1) for children and adults. Furthermore, the carcinogenic risk presented by pollutants such as copper (Cu), arsenic (As), nickel (Ni), cadmium (Cd), and chromium (Cr) was found to exceed the limits in children. In adults, only arsenic (As) and copper (Cu) were shown to represent a higher risk of cancer than the limit of 10−4. The PCA analysis revealed that two (PCs) accounted for more than 65% of the total variance in the River Ravi, as determined by eigenvalues greater than 1. This study underscores the importance of the ongoing monitoring and management of heavy-metal pollution to ensure sustainable marine ecosystem development and public health protection.

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Study of adsorption of copper, lead, and zinc in their various chemical forms from the sediments of the Brahmaputra river, Assam, India

Cited by 6 publications

References 43 publications

Copper removal from sediment by electrokinetic treatment with electrodes in a hexagonal configuration

Copper removal from sediment by electrokinetic treatment with electrodes in a hexagonal configuration

Spatio-Temporal Assessment of Manganese Contamination in Relation to River Morphology: A Study of the Boac and Mogpog Rivers in Marinduque, Philippines

Impact of heavy metals on aquatic life and human health: a case study of River Ravi Pakistan

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