Characterization of dissolved organic matter in Dongjianghu Lake by UV-visible absorption spectroscopy with multivariate analysis

Zhu, Yanzhong; Song, Yonghui; Yu, Han‐Qing; Liu, Ruixia; Liu, Lusan; Lv, Chunjian

doi:10.1007/s10661-017-6150-9

Cited by 14 publications

(4 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fig. 1 Watersheds of the Xihe River and location of the sampling sites PCA were carried on the data matrices of the heavy metals to trace the potential factors and reveal the patterns of the sediment samples [34,35]. The score plots for heavy metals can characterize the potential factors of each principal components (PC), and the loading plots for the 10 sediment layers can be used to investigate the sedimentary characteristics of the heavy metals.…”

Section: Sampling Sitesmentioning

confidence: 99%

Evaluating ecological risks and tracking potential factors influencing heavy metals in sediments in an urban river

Liu

Wang

et al. 2021

Environ Sci Eur

Self Cite

View full text Add to dashboard Cite

Background Heavy metal pollution of aquatic systems is a global issue that has received considerable attention. Canonical correlation analysis (CCA), principal component analysis (PCA), and potential ecological risk index (PERI) have been applied to heavy metal data to trace potential factors, identify regional differences, and evaluate ecological risks. Sediment cores of 200 cm in depth were taken using a drilling platform at 10 sampling sites along the Xihe River, an urban river located in western Shenyang City, China. Then they were divided into 10 layers (20 cm each layer). The concentrations of the As, Cd, Cr, Cu, Hg, Ni, Pb and Zn were measured for each layer. Eight heavy metals, namely Pb, Zn, As, Cd, Cr, Cu, Ni, and Hg, were measured for each layer in this study. Results The average concentrations of the As, Cd, Cu, Hg, and Zn were significantly higher than their background values in soils in the region, and mainly gathered at 0–120 cm in depth in the upstream, 0–60 cm in the midstream, and 0–20 cm downstream. This indicated that these heavy metals were derived from the upstream areas where a large quantity of effluents from the wastewater treatment plants enter the river. Ni, Pb, and Cr were close or slightly higher than their background values. The decreasing order of the average concentration of Cd was upstream > midstream > downstream, so were Cr, Cu, Ni and Zn. The highest concentration of As was midstream, followed by upstream and then downstream, which was different to Cd. The potential factors of heavy metal pollution were Cd, Cu, Hg, Zn, and As, especially Cd and Hg with the high ecological risks. The ecological risk levels of all heavy metals were much higher in the upstream than the midstream and downstream. Conclusions Industrial discharge was the dominant source for eight heavy metals in the surveyed area, and rural domestic sewage has a stronger influence on the Hg pollution than industrial pollutants. These findings indicate that effective management strategies for sewage discharge should be developed to protect the environmental quality of urban rivers.

show abstract

Section: Sampling Sitesmentioning

confidence: 99%

Evaluating ecological risks and tracking potential factors influencing heavy metals in sediments in an urban river

Liu

Wang

et al. 2021

Environ Sci Eur

Self Cite

View full text Add to dashboard Cite

show abstract

“…Variations in heavy metal values were presented using sediment depth and sampling site matrices. CCA and PCA were carried on the data matrices of the heavy metals to trace the potential factors and reveal the patterns of the sediment samples [28,29]. The score plots for heavy metals can characterize the potential factors of each principal components (PC) , and the loading plots for the 10 sediment layers can be used to investigate the sedimentary characteristics of the heavy metals.…”

Section: Discussionmentioning

confidence: 99%

Evaluating ecological risks and tracking potential factors influencing heavy metals in sediments in an urban river

Liu¹,

Yu²,

Gao³

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

Background Heavy metal pollution of aquatic systems is a global issue that has received considerable attention. Canonical correlation analysis (CCA), principal component analysis (PCA), and potential ecological risk index (PERI) have been applied to heavy metal data to trace potential factors, identify regional differences, and evaluate ecological risks. Sediment cores of 200 cm in length were taken using a drilling platform at 10 sampling sites along the Xihe River, an urban river located in western Shenyang City, China, divided into 10 layers (20 cm each). The concentrations of the As, Cd, Cr, Cu, Hg, Ni, Pb and Zn were measured for each layer. Eight heavy metals, namely Pb, Zn, Ag, Cd, Cr, Cu, Ni, and Hg, were measured for each layer in this study. Results The average concentrations of the As, Cd, Cu, Hg, and Zn were significantly higher than their background values in soils in the region, and mainly gathered at 0–120 cm in depth in the upstream, 0–60 cm in the midstream, and 0–20 cm downstream. This indicated that these heavy metals were derived from the upstream areas where a large quantity of effluents from the wastewater treatment plants enter the river. Ni, Pb, and Cr were close or slightly higher than their background values. The decreasing order of the average concentration of the Cd was upstream > midstream > downstream, so were the Cr, Cu, Ni and Zn. The trend of the average concentration of the As was different to the Cd; being highest midstream, followed by upstream and then downstream. The potential factors of heavy metal pollution were Cd, Cu, Hg, Zn, and As concentrations, especially Cd and Hg, whose ecological risks were much higher than those of Ni, Cr, and Pb. The ecological risk levels of all heavy metals were much higher upstream than midstream and downstream. Conclusions Industrial discharge was the dominate source for eight heavy metals in the surveyed area, and rural domestic sewage has a stronger influence on the Hg pollution than industrial pollutants. These findings indicate that effective management strategies should be developed to protect the environmental quality of urban rivers.

show abstract

“…Moreover, the American Public Health Association (APHA) 4500-Nor was used to determine the concentrations of phosphates [21], while the lab pH-meter Frederick, MD, US was used for pH measurements. The color was determined using the UV-V Spectrophotometer (PE-5400UV) pr-in ECOCHEMICAL, St. Petersburg, Russia [22]. Concentration levels of TSS were determined using the Hach TSS portable hand-held turbidity meter (HACH/LANGE, Berlin, Germany).…”

Section: Analysis Of the Samplesmentioning

confidence: 99%

Contribution of Electrolysis within an Integrated System for a Poultry Slaughterhouse Wastewater Treatment

et al. 2021

View full text Add to dashboard Cite

Treatment of poultry slaughterhouse wastewater before disposal or reuse is an essential part of human health and environmental protection in general. This study aimed to investigate the influence of the pre-treatment system based on electrolysis technology within an integrated lab-scale treatment plant in the removal of contaminants from poultry slaughterhouse wastewater. Several treatment units (averaging tank, feather catcher, fat catcher, and coarse mechanical filter) were connected in series before the electrolysis chamber. While in general, the entire integrated system also included some other units such as ultra-filtration, reverse osmosis, and the ultraviolet lamp connected in series. From the analysis results, it was observed that the pre-treatment phase with electrolysis had a significant influence on the general performance of the treatment plant. The pre-treatment contributed to about 33.5% to 100% in the general contaminants’ removal efficiency. The highest contribution was observed from the total chlorine (100%), nitrate (98.2%), as well as BOD (95.3%). The lowest contribution was observed from the nitrite removal, with 33.5%. This study revealed further that the integration of electrolysis technology in a wastewater treatment system has a significant potential for developing an effective wastewater treatment plant.

show abstract

Characterization of dissolved organic matter in Dongjianghu Lake by UV-visible absorption spectroscopy with multivariate analysis

Cited by 14 publications

References 40 publications

Evaluating ecological risks and tracking potential factors influencing heavy metals in sediments in an urban river

Evaluating ecological risks and tracking potential factors influencing heavy metals in sediments in an urban river

Evaluating ecological risks and tracking potential factors influencing heavy metals in sediments in an urban river

Contribution of Electrolysis within an Integrated System for a Poultry Slaughterhouse Wastewater Treatment

Contact Info

Product

Resources

About