Metal partitioning in sediment pore water from the Ondo coastal region, Nigeria

Ololade, Isaac Ayodele; Lajide, Labunmi; Ololade, Olusola O.; Adeyemi, O.

doi:10.1080/02772248.2011.575784

Cited by 8 publications

(3 citation statements)

References 25 publications

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“…Although there was no significant difference in the pH of upstream and downstream samples, higher level of heavy metals downstream is a pointer that the concentration of the heavy metal may be higher in river sediments downstream, giving a better indication of the impact of the WWTP on the pollution of the river. Heavy metal pore-analysis of the river sediment would have helped to better define the ecotoxicological risk of the river [53]. Results from this study show that industrial wastewater and WWTP effluent are evidently burdened with toxic heavy metals like Pb that the municipal WWTPs are unable to treat efficiently, therefore constituting as pollutant in the Vaal River.…”

Section: Impact Of Industrial Wastewater and Wwtp Effluents On Vaal Rmentioning

confidence: 95%

Investigating Industrial Effluent Impact on Municipal Wastewater Treatment Plant in Vaal, South Africa

Iloms

Ololade

Ogola

et al. 2020

IJERPH

151

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Industrial effluents with high concentrations of toxic heavy metals are of great concern because of their persistence and non-degradability. However, poor operation and maintenance of wastewater treatment infrastructure is a great concern in South Africa. In this study, physico-chemical parameters and heavy metals (HMs) concentration of wastewater from five different industries, Leeuwkuil wastewater treatment plant (WWTP) inflow and effluent, and Vaal River water samples were monitored between January and September 2017, to investigate the correlation between heavy metal pollution and the location of industries and ascertain the effectiveness of the municipal WWTP. Physico-chemical variables such as pH, biological oxygen demand (BOD), dissolved oxygen (DO), chemical oxygen demand (COD), total dissolved solids (TDS) and electrical conductivity (EC) exhibited both temporal and spatial variations with the values significantly higher in the industrial samples. Inductively coupled plasma optical emission spectrometry (ICP-OES) results also showed that aluminium (Al), copper (Cu), lead (Pb) and zinc (Zn) were significantly higher in industrial effluents (p < 0.05), with only Zn and Al exhibiting significant seasonal variability. Statistical correlation analysis revealed a poor correlation between physicochemical parameters and the HMs compositional quality of wastewater. However, toxic HMs (Zn, Cu and Pb) concentrations in treated wastewater from WWTP were above the permissible limits. Although the WWTP was effective in maintaining most of the wastewater parameters within South African Green drop Standards, the higher Cu, Zn, Pb and COD in its final effluent is a concern in terms of Vaal river health and biological diversity. Therefore, we recommend continuous monitoring and maintenance of the WWTPs infrastructure in the study area.

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Section: Impact Of Industrial Wastewater and Wwtp Effluents On Vaal Rmentioning

confidence: 95%

Investigating Industrial Effluent Impact on Municipal Wastewater Treatment Plant in Vaal, South Africa

Iloms

Ololade

Ogola

et al. 2020

IJERPH

151

View full text Add to dashboard Cite

show abstract

“…Water Analysis (Cd, Pb, Cu, Zn and Fe) [12] Kenya Water Analysis (Pb) [13] Nigeria Analysis of seafood, water, and sediment (Pb, Cd, and Ni) [14] Ghana Water Analysis (As, Mn, Hg, and Pb) [15] Ghana Water analysis (Hg and Pb) [16] HM ions in water systems that affect human health and aquatic life. The research studies highlighted that metals such as Pb, Cd, and Hg have no positive impact on human health.…”

Section: Countrymentioning

confidence: 99%

Fabrication, Modification, and Mechanism of Nanofiltration Membranes for the Removal of Heavy Metal Ions from Wastewater

Nompumelelo,

Edward,

Muthumuni

et al. 2023

ChemistrySelect

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Heavy metals present in wastewater and water scarcity are a global challenge worldwide. The elimination of heavy metals in wastewater is necessary to protect the ecosystem and human health. Heavy metals such as lead, cadmium, and mercury are among many other toxic heavy metals present in wastewater. There are several conventional methods that have been implemented to mitigate heavy metal pollution in wastewater and according to literature, it has been evident that the nanofiltration (NF) separation technique requires minimal pressure to obtain high rejections of multivalent inorganic salts compared to conventional methods. NF separation process is highly competitive in terms of selectivity and cost‐benefit. The growing research trend of NF fabrication and modification collates that the technology has been applied in various industrial and municipality wastewater treatment facilities. The review paper aims to illustrate the health impacts of heavy metal exposure, the cons of conventional methods and the utilization of NF membranes in wastewater treatment, the overall factors affecting membrane performance, and future aspects of the separation techniques.

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“…In sediment, trace metals will be present in both the particulate phase and the dissolved phase, and these phases will interact not only with each other but also with the overlying water (Zhu et al 2016). The distribution of trace metals between solid and liquid phases is influenced by changes in environmental conditions such as pH, redox potential, and particle size, hence the sediment can act as a source of metals (Ololade et al 2011) and result in the remobilization of metals from sediments to the overlying water (Duan et al 2019;Wang and Wang 2017).…”

Section: Sediments As a Sink Or Source Of Trace Metals In The Oceansmentioning

confidence: 99%

Two Approaches to Measure Trace Metals Fluxes at the Sediment–Water Interface: Sediment Porewater Profile and Benthic Incubation

Harmesa

Wahyudi

2020

AJSTD

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The biogeochemical cycle of trace metals is very likely affected by the global change in the ocean, especially due to the increasing of sea surface temperature and acidity. Thus, assessing biogeochemical cycle of trace metals will beneficial in elucidating the potential impact of climate change as well as ocean acidification. The assessment of the biogeochemical cycle of trace metals can be performed by measuring trace metals fluxes crossing the sediment-water interface. The main challenge in this measurement is the difficulty of measuring metal concentrations at trace levels due to either physical factors or biological factors that can affect the total flux. Sediment porewater profile and in situ benthic incubation are the two most commonly used methods for measuring trace metals fluxes from sediment to the overlying water or vice versa. The coefficient of diffusion and gradient of concentration are the two most important values in the sediment porewater profile method, while the constant volume involved in the container during the experiment is an important part of the in situ benthic incubation method. The purpose of this review is to provide an overview of both measurement methods deeply and predict the challenges faced in its implementation in Indonesia. Keywords: Benthic fluxes; Overlying water; Porewater; Sediment; Trace metals

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Metal partitioning in sediment pore water from the Ondo coastal region, Nigeria

Cited by 8 publications

References 25 publications

Investigating Industrial Effluent Impact on Municipal Wastewater Treatment Plant in Vaal, South Africa

Investigating Industrial Effluent Impact on Municipal Wastewater Treatment Plant in Vaal, South Africa

Fabrication, Modification, and Mechanism of Nanofiltration Membranes for the Removal of Heavy Metal Ions from Wastewater

Two Approaches to Measure Trace Metals Fluxes at the Sediment–Water Interface: Sediment Porewater Profile and Benthic Incubation

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