Multistage remediation of heavy metal contaminated river sediments in a mining region based on particle size

Ma, Tengfei; Sheng, Yanqing; Meng, Yingjie; Sun, Jianzhang

doi:10.1016/j.chemosphere.2019.03.018

Cited by 44 publications

(17 citation statements)

References 27 publications

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“…Because heavy metals are difficult to be removed from water by self-purification, they are considered as a kind of pollutants with high ecological significance in environment. 60,61 Although Pu isotope testing techniques are developing rapidly, some properties of Pu isotopes are not well known. 37,62−64 We had some reported data on some heavy metals (V, Cr, Co, Ni, Cu, Zn, Ga, As, Cd, Sn, Tl, Pb, Mn) in the surface sediments that were collected from our study river basins in southern China.…”

Section: Resultsmentioning

confidence: 99%

Distribution and Source Identification of Pu in River Basins in Southern China

Wang

Ling

et al. 2019

ACS Omega

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The 239+240Pu activities and 240Pu/239Pu atom ratios in surface sediments from the major river basins in southern China were analyzed to investigate the distribution and source of Pu. We clarified that the 239+240Pu activities in these river basins were very similar, however, only the 239+240Pu activities in the Jinjiang Basin were generally higher than other samples. Because of river transport function, the distribution of 239+240Pu activities in these river basins presented an increasing trend from the upstream region to the estuary. According to the 240Pu/239Pu atom ratios, the Pu source in the inner river basins might be from global fallout, and the Pu in river estuaries might be from the global fallout and the Pacific Proving Grounds (PPG) in the Marshall Islands. Using a mass balance of the Pu model, we quantified in the Pearl River Estuary and the Pu contribution from the Pearl River Basin to Pu inventory was 13 ± 5%. These data not only filled in a knowledge gap of Pu in these river basins but also served as background data for Pu contamination from a nuclear reactor. Also, there are several planned and operating nuclear power plants in these river basins and these data could provide some indications for dealing with nuclear accidents in different parts of river basins in the future. In this study, we also analyzed some factors that would affect the distribution of 239+240Pu activities; however, only total organic carbon (TOC) content and the heavy metal As had a positive correlation with the 239+240Pu activity.

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Section: Resultsmentioning

confidence: 99%

Distribution and Source Identification of Pu in River Basins in Southern China

Wang

Ling

et al. 2019

ACS Omega

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“…The dredging reduced dissolved metal concentrations between 26% and 44%. Ma, Sheng, Sheng, Meng, and Sun (2019) studied the heavy metal content of various sizes of dredged sediment. They noted that heavy metals were primarily associated with the finer sediments so that the coarser sediment can be beneficially used as in construction.…”

Section: Risk Evaluationsmentioning

confidence: 99%

Contaminated aquatic sediments

Jaglal¹

2020

Water Environment Research

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Jawed and Krantzberg (2019) identified best practices to follow when remediating sediment sites based on experience gained at the Randle Reef Site in Ontario, Canada. The authors identify a list of challenges to overcome that fall under a broad series of headings that include issues associated with social, regulatory, political, and technical topics. Bianchini, Cento, Guzzini, Pellegrini, and Saccani (2019) reviewed more than 150 historical articles, written over the previous 50 years, to identify alternative

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“…Heavy metals, with the characteristics of persistence, non-biodegradability, toxicity and bioaccumulation, have a negative impact on the health of humans as well as ecosystems (Liu et al 2016a(Liu et al , 2016bChai et al 2021) and, therefore, their occurrence in rivers needs to be strictly controlled. As such, this conclusion essentially stimulated further research activity into heavy metal pollution in river sediments which includes recent studies on heavy metal temporal and spatial distribution (Bai et al 2016;Nguyen et al 2020), source identification (Chen et al 2020;Zuo et al 2018), pollution assessment (Duodu et al 2017) and ecological restoration (Ma et al 2019).…”

Section: Introductionmentioning

confidence: 96%

“…Irrigated areas, which have been polluted by the Huafei River for a long time, have seen their soils subjected to the continuous accumulation of heavy metals, significantly threatening the soil ecological environment and consequently human health (Chen et al 2020;Han 2003;Li et al 2015). Since the end of the 20th century, the research group of the author has focused research attention on the Huafei River and the associated sewage irrigated areas, and has carried out a series of studies on heavy metal pollution, including heavy metal pollution of the soil-crop system in the sewage irrigated area (Han and Ma 2004), the responses of soil animals to heavy metal pollution in the sewage irrigated area (Du et al 2010), heavy metal pollution in soil of the sewage irrigated area (Du et al 2009) and heavy metal pollution of the sediment in Huafei River (Ma et al 2019;Wang et al 2016), etc. The objectives of this paper are (1) to collect sediment samples from the Huafei River to determine and analyze their physical and chemical properties {pH, organic matter (OM), total nitrogen (TN) and total phosphorus (TP)} and the prevalence of 8 heavy metals (As, Cd, Cr, Cu, Hg, Ni, Pb and Zn); (2) to evaluate the degree of contamination and assess the ecological risks in the river by calculating the geo-accumulation index and potential ecological risk index, recalling the data on heavy metals in researches over the last 20 years; (3) to identify the possible sources of these heavy metals based on Pearson's correlation analysis, principal component analysis and cluster analysis.…”

Section: Introductionmentioning

confidence: 99%

Pollution, Ecological Risk and Source Identification of Heavy Metals in Sediments From the Huafei River in the Eastern Suburbs of Kaifeng, China

Jin

Wang

Lou

et al. 2021

Preprint

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Rivers in urban environments are significant components of their ecosystems, but remain under threat of pollution from unchecked discharges of industrial sewage and domestic waste water. Such river pollution, particularly over the longer term involving heavy metals, is an issue of worldwide concern regarding risks to the ecological environment and human health. In this study, we investigate the long-term pollution characteristics of the Huafei River, an important urban river in Kaifeng, China. River sedimentary samples were analyzed, assessing the degree and ecological risk of heavy metal pollution using the geo-accumulation index and potential ecological risk index methods; whilst Pearson’s correlation, principal component, and cluster analyses were used to identify the sources of pollution. The results show that heavy metal concentrations are significantly higher than their corresponding fluvo-aquic soil background values in China, and the geo-accumulation indexes indicate that of the 8 heavy metals identified, Hg is most prevalent, followed in sequence by Cd>Zn>Cu>Pb>Ni>As>Cr. The potential ecological risk index of the Huafei river is extremely strong, with the potential ecological risk intensity highest in the midstream and downstream sections where it is recommended that pollution control is carried out, especially concerning Hg and Cd. Long-term sequence analysis indicates that Cu and Pb dropped sharply from 1998 to 2017, but rebounded in 2019, and that Zn shows a continuous decreasing trend. Four main sources for the heavy metal contaminants were identified: Cr, Cu, Ni, Pb, Zn and Hg derived mainly from industrial activities, traffic sources and natural sources; Cd originated mainly from industrial and agricultural activities; whilst As was mainly associated with industrial activities. It is anticipated that the findings of this study will provide theoretical references for the effective control and scientific management of heavy metal pollution in Huafei River and its surrounding areas.

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Multistage remediation of heavy metal contaminated river sediments in a mining region based on particle size

Cited by 44 publications

References 27 publications

Distribution and Source Identification of Pu in River Basins in Southern China

Distribution and Source Identification of Pu in River Basins in Southern China

Contaminated aquatic sediments

Pollution, Ecological Risk and Source Identification of Heavy Metals in Sediments From the Huafei River in the Eastern Suburbs of Kaifeng, China

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