Journal of Hazardous, Toxic, and Radioactive Waste: Recent submissions
Now showing items 181-200 of 763
-
Assessing Sample Number Requirements for Municipal Solid Waste Composition Studies
(ASCE, 2022-1-1)Solid waste decision makers use waste composition studies in sustainability planning and as metrics to measure their environmental benefits (e.g., recycling rates). In many of these studies, there are varying waste components ... -
Mixture of CaCO<sub>3</sub> Polymorphs Serves as Best Adsorbent of Heavy Metals in Quadruple System
(ASCE, 2022-1-1)This study compares and analyzes removal of Pb (II), Cu (II), Mn (II), and Zn (II) from aqueous solution as individual ions (monometal system) or as mixed ions (quadruple system) by commercial laboratory-grade calcium ... -
Investigation of Dye Effluent Treatment Using Unmodified and Modified Biobased Sorbent and Its Process Economics
(ASCE, 2022-1-1)This study will focus on the preparation of activated carbon (AC) from biowaste [walnut shells (WS)] and its further chemical activation with potassium hydroxide (AC-KOH) and orthophosphoric acid (AC-H3PO4) for the treatment ... -
Thermochemical Effect on Swelling Pressure and Microstructure of Monovalent and Divalent Indian Bentonites
(ASCE, 2022-1-1)During the long-term operation of deep geological nuclear waste repositories, the swelling properties of compacted bentonites can be affected by canister temperature and electrolyte concentration in groundwater. The present ... -
Removal of Cyanide from Aqueous Solutions by Biosorption onto Sorghum Stems: Kinetic, Equilibrium, and Thermodynamic Studies
(ASCE, 2022-1-1)Sorghum stems will be considered in this work as an alternative for the adsorption of cyanides in aqueous solution. It is an abundant material in southern Algeria, and it does not require any specific pretreatment. Therefore, ... -
Oxidation of 2,4-Dichlorophenoxyacetic Acid by Persulfate or Peroxymonosulfate with Iron(II) as an Activator
(ASCE, 2022-1-1)Several approaches can be used to activate persulfate anion (S2O82−) and peroxymonosulfate anion (HSO5−) to generate sulfate free radical (SO4−∙), a powerful oxidizing agent. In this study, we investigate ferrous ion (Fe2+) ... -
Optimization of Pyrite Bio-Oxidation to Produce Ferric Reagent for Sphalerite Leaching
(ASCE, 2022-1-1)Leaching of zinc from sulfide minerals is a subject of considerable interest over the last few years. Ferric solutions were commonly reported to leach base metals sulfide concentrates. The current study investigates the ... -
Assessment of Clay Mineral Attenuation Capacity for Human Viral Pathogens
(ASCE, 2022-1-1)The current practice of curbing the ill effects associated with the open dumping of biomedical waste (BMW) solely relies on incineration. However, the incineration of BMW and plastic-based medical gear is associated with ... -
Fate of Emerging Contaminants in an Integrated Fixed-Film Activated Sludge Plant
(ASCE, 2022-1-1)Conventional sewage treatment techniques have shown low removal efficiency for emerging contaminants (ECs). Hence, more efficient treatment systems need to be investigated. The current study suggests that an Integrated ... -
Influence of Synthesis and Functionalization Procedures of Fe<sub>3</sub>O<sub>4</sub> NPs by Mono- and Diamino Silane Coupling Agents on the Adsorption Efficiency of Anionic Dyes
(ASCE, 2022-1-1)Magnetite (Fe3O4) is the most important iron oxide species that has received considerable attention by many researchers because of its strong magnetic susceptibility, lack of a remanent field, coercivity, and absence of a ... -
Application of Triple Porosity Nonequilibrium Model to Simulate Fate of Solute through Heterogeneous Soil Column
(ASCE, 2022-1-1)This study presents the application of a triple-porosity nonequilibrium model (TPNE) trifurcating the liquid phase within representative elementary volume (REV) in a saturated porous medium. The model accounts for both ... -
Coagulation Followed by Continuous Sand Filtration for Treatment of Graywater
(ASCE, 10/1/2021)In a long-duration study, the performance of a physicochemical system for the treatment of raw graywater––namely, coagulation followed by continuous saturated-sand filtration––was investigated. Graywater coagulated using ... -
Reclamation of Sedimented Ash Deposit by Chemical Columns
(ASCE, 10/1/2021)This research focuses on the potentiality of calcium hydroxide (Ca(OH)2) and sodium hydroxide (NaOH) columns in augmenting the geoengineering and geoenvironmental properties of sedimented ash beds. Model ash beds were ... -
Size Distributions and Seasonal Variations of Water-Soluble Inorganic Particulate Matter at a Suburban Site in Nanjing, China
(ASCE, 10/1/2021)Size-resolved aerosol mass concentrations and concentrations of inorganic water-soluble ions (WSIs) were measured in four seasons, from December 22, 2016 to November 28, 2017, in Nanjing, China. Water-soluble ions were the ... -
Identification and Quantification of a Wide Variety of Inorganic Nanoparticles in Municipal Wastewater
(ASCE, 10/1/2021)Increasing use of inorganic nanoparticles in consumer products and industrial processes has resulted in greater presence of these nanoparticles in wastewater, and it is important to understand the occurrence and characteristics ... -
Enhancing Arsenic Phytoextraction of Dwarf Napier Grass (<i>Pennisetum purpureum</i> cv. Mott) from Gold Mine Tailings by Electrokinetics Remediation with Phosphate and EDTA
(ASCE, 10/1/2021)In order to study the efficiency of arsenic (As) removal from gold-mine tailings by electrokinetic-assisted phytoremediation (EAPR), a constant direct current (DC) electric field of 1 V/cm (3 h per day) was applied to dwarf ... -
Synthesis of TiO<sub>2</sub> Using <i>Calotropis gigantea</i> for Visible Light Excitation and Degradation of Congo Red Dye
(ASCE, 10/1/2021)Green synthesized TiO2 (CG-TiO2) was prepared from Titanium isopropoxide (TTIP) precursor using aqueous leaf extract of Calotropis gigantea (CG). The CG-TiO2 was prepared with different mixing ratios of CG and TTIP varying ... -
An Experimental Study of Sand–Clay Mixtures Contaminated with Lead and Zinc Heavy Metals
(ASCE, 10/1/2021)This study aims to investigate the geotechnical and chemical properties of sand–clay mixtures contaminated with lead and zinc. To prepare the specimens, two kinds of mixtures were studied. Sand–kaolinite and sand–bentonite ... -
Emission of Ionizing Radiation from Active and End-of-Life Mobile Phones and Batteries
(ASCE, 10/1/2021)The use of mobile phones and discarding them before or after their end-of-life has become a recent trend. This practice increases environmental pollution and health hazards worldwide. Besides pollution, mobile phones and ... -
Corrosion-Enhancing and Corrosion-Reducing Accessories in Bentonite Surrounding Copper-Shielded Containers for Nuclear Waste
(ASCE, 10/1/2021)The standard design for the underground disposal of high-level nuclear waste consists of a carbon steel container that hosts the waste shielded by a 5-cm-thick layer of corrosion-resistant native copper (Cu°), which is ...