Speciation of heavy metals in inter-tidal sediments of the Okrika river system, Rivers State Nigeria.

Horsfall, Michael; Spiff, Ayebaemi I.

doi:10.4314/bcse.v13i1.21050

Cited by 35 publications

(32 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The accumulation of heavy metals certainly has adverse effect on aquatic flora and fauna and may constitute a public health problem where contaminated organisms are used for food. They can cause poisoning, initiate cancer, and result in brain damage when found above the tolerance levels [5][6][7][8]. The agencies for the environmental monitoring have set permissible limits for heavy metals levels in drinking water because of their harmful effects.…”

Section: Hazardous Effect Of Heavy Metalsmentioning

confidence: 99%

Removal of Heavy Metals from Industrial Waste Water by Biomass-Based Materials: A Review

Ms¹,

Arm²

2016

J Pollut Eff Cont

View full text Add to dashboard Cite

The recent researches are moving to removal of the agricultural and industrial pollutants from sewage treatment and discuss the possibility of the re-use of this water for agricultural purposes. The chemical contaminants represent the most dangerous types of contaminants found in the water for a many reasons, they are non-biodegradable environmentally and their high toxicity at very low concentrations in addition to the cumulative impact in the bodies of living organisms. The most toxic heavy metals are lead, mercury and chromium. It was estimated that the estimated that global impact of lead is 18-22 million people and of mercury 15 to 19 million people at 2010 according to Blacksmith Institute's World worst pollution problems. Contamination of the water resources with these elements, leads to polluting of the entire food chain and represents a real threat to the ecosystem. Thus, pure water shortage becomes a crucial problem worldwide. Among the most important research that can contribute to solving the problem of those related to water purification and improving the quality and re-use even in agriculture, for example, instead of wasted and discarded. There are many scientific methods applied in this regard. They include adsorption, precipitation, ion exchange, reverse osmosis, electrochemical treatments, membrane filtration, evaporation, flotation, and oxidation and biosorption processes. Some of these techniques however, have disadvantages such as incomplete metal removal, high reagent and energy requirements and generation of toxic sludge or other waste products. Among all these techniques, the adsorption is economically favorable and technically easy to separate. Instead of using commercial materials researchers have worked on inexpensive materials such as natural and agricultural products. Several works concerned the removal of heavy metals but the present work focuses on the sorbents based on biomass and their efficiency in removal of heavy metals from waste water.

show abstract

Section: Hazardous Effect Of Heavy Metalsmentioning

confidence: 99%

Removal of Heavy Metals from Industrial Waste Water by Biomass-Based Materials: A Review

Ms¹,

Arm²

2016

J Pollut Eff Cont

View full text Add to dashboard Cite

show abstract

“…When agricultural soils are polluted, these metals are taken up by plants and consequently accumulate in their tissues (Trueby, 2003). Animals that graze on such contaminated plants and drink from polluted waters, as well as marine lives that breed in heavy metal polluted waters also accumulate such metals in their tissues and milk if lactating (Habashi, 1992;Garbarino et al, 1995;Horsfall and Spiff, 1999;Peplow, 1999). Municipal waste contains such heavy metals as Pb, Co, Hg, Mn, As, Fe, and so on which end up in the soil as the sink when they are leached out from the dump sites.…”

mentioning

confidence: 99%

Seasonal Variations of Heavy Metals Concentration in Abattoir Dumping Site Soil in Nigeria

Yahaya¹,

Mohammad²,

Abdullahi³

2010

Journal of Applied Sciences and Environmental Management

View full text Add to dashboard Cite

Assessment of seasonal variation in concentration of the heavy metals-Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn-in Abattoir dump site soil at Yauri, Nigeria, was undertaking during the two major seasons of Nigeria. This was done to determine the environmental pollution status of the soil at the dump site. Soil samples (0-15cm) collected during the 2007/2008 rainy and dry seasons were treated and digested using microwave acid digestion methods. The heavy metal concentrations were determined with Atomic Absorption spectrophotometer (AAS). The mean levels range of Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn were 13.2 -30.02mg/kg, 59.14-102.50mg/kg, 59. 32 -96.13mg/kg, 2569 -4130mgkg, 263.01 -608.11mg/Kg, 36.21 -107.13mg/kg, 15.60 -30.09mg/kg and56.31-92.50mg/kg for dry seasons and 10. 13-22.76mg/kg,49.96-89.46mg/kg,49.12-73.08mg/kg,23330.02-3671.14mg/kg,249.72-561.03mg/kg,33.50-99.06mg/kg,16.20-28.11mg/kg, and 50.91-89.10mg/kg for wet season respectively. The analytical results indicated that in both wet and dry seasons some metals concentrations were above the literature levels of a typical soil, which course for concern. @ JASEM

show abstract

“…In the recent past, renewable materials are being identified for the removal of metals from effluents which include biomasses like Nipa palm [3], Manihot sculenta Cranz. [4], sea weed [5] and Medicago sativa [6]. A new low-cost or less capital intensive and more effective adsorbents are required for wastewater treatments leading researchers to engage in the search for a low-cost and possibly, a locally available material that could be used as adsorbent providing maximum adsorption capacities.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Study of Lead(II) Ions on Poly(methyl methacrylate) Waste Material

Abasi¹,

Wankasi²,

Dikio³

2018

Asian J. Chem.

View full text Add to dashboard Cite

The sorption of Pb 2+ from solution by poly(methyl methacrylate) (PMMA) waste has been investigated. The morphological characterization of the collected PMMA polymer were studied by scanning electron microscopy. Equilibrium, kinetics and thermodynamic batch adsorption experiments of Pb 2+ on the PMMA waste samples were carried out. This study enabled the determination of the concentration, time and temperature effects, respectively on the adsorption properties of the PMMA polymer. The morphological image of the PMMA polymer showed the presence of irregular small size particles that indicated a high surface which is therefore possible to facilitate sorption. The reaction kinetics of the adsorption studies of Pb 2+ by the polymer followed a second-order rate process. The results indicated that the adsorbent, PMMA, proved to be an effective material for the treatment of lead contaminated water solution. The thermodynamic studies suggested a reaction that favoured a relatively low temperature (low energy) sorption that is exothermically controlled with a physisorption mechanism.

show abstract

Speciation of heavy metals in inter-tidal sediments of the Okrika river system, Rivers State Nigeria.

Cited by 35 publications

References 0 publications

Removal of Heavy Metals from Industrial Waste Water by Biomass-Based Materials: A Review

Removal of Heavy Metals from Industrial Waste Water by Biomass-Based Materials: A Review

Seasonal Variations of Heavy Metals Concentration in Abattoir Dumping Site Soil in Nigeria

Adsorption Study of Lead(II) Ions on Poly(methyl methacrylate) Waste Material

Contact Info

Product

Resources

About