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Role of pore chemistry and topology in the heavy metal sorption by zeolites: From molecular simulation to machine learning.
(Science Direct, 2021-07)
Zeolite frameworks can provide pores that enable selective heavy metals sorption, making these materials promising for energy-efficient heavy metals capture. In the present study, the adsorption of hazardous heavy metal ...
Assessment of Environmental Sources, Levels and Distribution of Polycyclic Aromatic Hydrocarbons within Nzoia Catchment Area in Kenya
(Journal of Environmental Protection, 2019-06)
Continuous concerns about Polycyclic Aromatic Hydrocarbons (PAHs) presence in the environment have raised concern because of their toxic effects to various organisms. Sugarcane farming and cane processing industries are ...
Computational screening of zeolites for the adsorption of selected pharmaceutical pollutants
(SN Applied Sciences, 2020-10-27)
Molecular simulations have been used as a screening tool to identify promising zeolites for the removal of selected pharmaceutical pollutants. 40 zeolites with different structural and chemical configurations were studied. ...
Green Remediation of Carbamazepine from Water Using Novel Magnetic Iron Modified Carbonized Baggasse: Kinetics, Equilibrium and Mechanistic Studies
(Chemical Science International Journal, 2017-03-15)
Baggasse derived biochar magnetically modified with iron (α-Fe2O3-CBG) was fabricated, characterized and applied as a low-cost adsorbent for the removal of carbamazepine (CBZ), a pharmaceutically active compound which has ...
Per- and polyfluoroalkyl substances in selected sewage sludge in Nigeria
(Elsavier, 2013-05-03)
Levels of seven major perfluoroalkyl carboxylates (PFCAs) and three perfluoroalkyl sulfonates (PFSAs) were analyzed for the first time in sludge from wastewater treatment plants from Nigeria. Measurements were performed ...
Perfluorinated Compounds Distribution and Source Identification in Sediments of Lake Victoria Gulf Basin
(Soil and Sediment Contamination, 2011-03-03)
Perfluorooctanoic acid and perfluorooctane sulfonate were determined in the sediments from Winam Gulf, which is in the Kenyan side of Lake Victoria and in its source rivers. The sources of perfluorinated compounds within ...
Synthesis of mesoporous akaganeite functionalized maize cob biochar for adsorptive abatement of carbamazepine: Kinetics, isotherms, and thermodynamics
(Cleaner Materials, 2022-07-17)
In this work, akaganeite (β-FeO(OH)) impregnated maize cob biochar (Fe-MCB) was prepared by direct hydrolysis, and its adsorptive potential was tested against aqueous solutions of carbamazepine (CBZ), an emerging contaminant. ...
Perfluoroalkyl acids in selected wastewater treatment plants and their discharge load within the Lake Victoria basin in Kenya
(Environmental Monitoring and Assessment, 2015-04-11)
A major ecological challenge facing Lake Victoria basin is the influx of chemical contaminants from domestic, hospital, and industrial effluents. Determined levels of perfluoroalkyl acids (PFAAs) in wastewater and sludge ...
Assessment of heavy metals in benthic macroinvertebrates, water and sediments in River Isiukhu, Kenya
(Environmental Monitoring and Assessment, 2019-10-16)
A major ecological challenge facing freshwater resources such as rivers is the influx of chemical contaminants from anthropogenic sources. A report on the levels of heavy metals, namely Zn, Cu, Cr, Cd and Pb in benthic ...
Conventional Wastewater Treatment Plants as a Discharge and Source Point for Biota Exposure to Micro-pollutants
(Tylor and Francis, 2018-05-22)
This chapter provides information on conventional wastewater treatment plants (WWTPs) as a discharge point, through which micro-pollutants (MPs) get into aquatic and terrestrial biota from various points of origin and ...