Latest News on Dumpsite Research: Sep – 2019

Assessment of the physicochemical parameters and heavy metals toxicity of leachates from municipal solid waste open dumpsite

Heavy metals and chemistry characteristics of the various sites of the municipal solid waste garbage dump at Olusosun lowland, Lagos, Nigeria, were investigated. The dormant website} of the lowland has the potential of being a supply of immediate environmental risk compared to the active and abandoned site, with the site exhibiting tendency to be a possible supply of atomic number 82, Cd and Zn pollution. Zn was the foremost pr metal within the space (0.264–0.947 mg/L) whereas Cd concentration was very cheap (0.001–0.022 mg/L). Pb, Cd, Zn were from evolution sources and correlate considerably with chemical O demand and oil and grease. Cu and Cr were a lot of pr within the dormant website and square measure hooked up to the solids as indicated by their important correlation with TS and SS. [1]

Heavy Metals Contamination of Water, Soil, and Plants around an Electronic Waste Dumpsite

Electronic waste (e-waste) has become a subject matter of growing environmental concern in developing coun- tries thanks to legal/illegal import of physical science from developed nations. during this study, concentrations of serious metals in and round the largest e-waste marketing web site in African country, Alaba International Market in urban center, was investigated. Concentrations of 5 serious metals, namely: atomic number 48 (Cd), metal (Cr), lead (Pb), nickel (Ni), and metal (Zn) in soil, water, and plant samples throughout the wet and dry seasons were measured mistreatment atom- ic absorption qualitative analysis (AAS). Samples were collected between October 2011 and will 2012 and digest- dysfunction mistreatment normal wet digestion strategies. lead recorded the best values, whereas very cheap were found for Cd all told the samples throughout the time of year. serious metal concentrations were typically lower throughout the wet sea- son thanks to hyperbolic aeration and dilution from precipitation. [2]

Quality assessment of mined MSW from an open dumpsite for recycling potential

A study on utilisation potential was performed on the stabilised municipal solid waste from Nonthaburi wasteyard in Thailand. The waste was excavated and subjected to separation method victimisation trommel screen with screen openings of twenty five millimetre and fifty millimetre. The screened wastes were classified into 3 fractions supported the sizes like fine fraction (50 mm). The waste composition, physical and chemical characteristics of every waste fraction were determined to guage quality of waste for utilisation. The doable phytotoxicity of waste to be used as compost was explored by conducting seed germination and root elongation check of rice plant (Oryza sativa L.). The wasteyard was discovered to be heterogeneous and principally composed of plastics and soil. [3]

Stable isotope evidence for entry of sewage-derived organic material into a deep-sea food web

CHRONIC pollution of the open ocean has occurred since 1986 through disposal of municipal biodegradable pollution sludge at a deep (∼2,500 m) waste-yard off the coast of latest Jersey. diffusion and dilution of biodegradable pollution particulates in surface waters were probable  to be decent to stop or minimize accumulation of detectable amounts of sewage-derived material on the ocean floor. exploitation stable atom ratios of carbon, gas and sulphur as tracers of sewage-derived organic material, we tend to show here that this material reaches the ocean floor and enters the benthonic food cycle, specifically through surface-deposit feeding activities of the tike, ovolo affinus and also the holothurian, Benthodytes sanguinolenta. [4]

Concentration of Heavy Metals in Soils at the Municipal Dumpsite in Calabar Metropolis

This analysis was disbursed to research the amount of serious metals in soils at the municipal wasteyard in Calabar, Cross watercourse State, Nigeria. Composite soil samples were collected from 5 totally different landscape positions on a toposequence (crest, higher slope, middle slope, lower slope and valley/swamp) at the wasteyard in Calabar. The management sample was taken from Associate in Nursing adjacent plot. The management soil was slightly acidic (5.6) whereas soils from the wasteyard were slightly acidic (6.7 -7.4) to slightly alkalic in reaction. altogether the wasteyard locations the amount of Mercury (0.4-1.0 mg/kg), metallic element (0.66 – two hundred mg/kg), Nickel (26 – 748.6 mg/kg), Lead (118 – 4548 mg/kg), and metallic element (1248 -2864 mg/kg) were on top of the permissible limits in soil whereas iron and copper concentrations were among soil limits. [5]

Reference

[1] Ogundiran, O.O. and Afolabi, T.A., 2008. Assessment of the physicochemical parameters and heavy metals toxicity of leachates from municipal solid waste open dumpsite. International Journal of Environmental Science & Technology, 5(2), (Web Link)

[2] Olafisoye, O.B., Adefioye, T. and Osibote, O.A., 2013. Heavy metals contamination of water, soil, and plants around an electronic waste dumpsite. Pol. J. Environ. Stud, 22(5), (Web Link)

[3] Prechthai, T., Padmasri, M. and Visvanathan, C., 2008. Quality assessment of mined MSW from an open dumpsite for recycling potential. Resources, Conservation and Recycling, 53(1-2), (Web Link)

[4] Stable isotope evidence for entry of sewage-derived organic material into a deep-sea food web
Cindy Lee Van Dover, J. F. Grassle, Brian Fry, Robert H. Garritt & Victoria R. Starczak
Naturevolume 360, (Web Link)

[5] F. Ediene, V. and B. A. Umoetok, S. (2017) “Concentration of Heavy Metals in Soils at the Municipal Dumpsite in Calabar Metropolis”, Asian Journal of Environment & Ecology, 3(2), (Web Link)

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