This paper deals with the treatment of hazardous zinc-bearing waste using hydraulic binders and silicone polymers, aim to allow its safe disposal into landfill. The was solidified in first step then encapsulated polymers. Samples were characterised x-ray fluorescence, diffraction, scanning electron microscopy. effectiveness process evaluated by leaching tests distilled water an acidic environme...

Abstract A field experiment was implemented at the Agricultural Research Station / college of Agriculture Basra University, Karma Ali, during year 2021 to study effect adding organic matter in efficiency salts leaching soil affected by salinity using three types residuses (cows, rice, and miaze ) two levels From addition (2 % 4 %), where process took five stages, laboratory measurements were pe...

The spent automobile catalysts (SAC) is the major secondary source of palladium and production SAC increasing rapidly over years. price keeps rising years, which demonstrates its preciousness urgent industrial demand. Recovering from benefits a lot economic environmental protection aspects. This review aims to provide some new considerations recovering automotive by summarizing discussing both ...

Abstract Ilmenite is found in the form of iron sand with reserves 927,315,827 tons spread across several regions Indonesia, including Banten which has seven million sand. This mineral can be used as a raw material for making TiO 2 pigments. The problem faced use its complex structure causes difficulties at processing stage. synthesis from ilmenite ore commonly sulfate process and chloride proce...

0

Considering economics and environmental sustainability, recycling of critical metals from end-of-life devices should be a priority. In this work the hydrometallurgical treatment spent automotive catalytic converter (SACC) using HCl with CaCl2 as leaching medium, solvent extraction (SX) thiodiglycolamide derivative, is reported. The aim was to develop scheme allowing high Pt recoveries minimizin...

A choline chloride/urea natural deep eutectic solvent (ChCl NADES) was prepared via a green chemistry method and used to leach Zn Mn oxides from conventional Zn–C scrap batteries. FTIR 1H NMR spectroscopy were characterize the NADES. The leaching kinetics of monitored at isothermal conditions (80, 100, 125, 150 °C) two solid/NADES ratios: 3.3 10 g dm−3. It possible dissolve under all tested con...

Because tires contain approximately 1-2% zinc by weight, zinc leaching is an environmental concern associated with civil engineering applications of tire crumb rubber. An assessment of zinc leaching data from 14 studies in the published literature indicates that increasing zinc leaching is associated with lower pH and longer leaching times, but the data display a wide range of zinc concentratio...