Use of biomass as alternatives to petrochemicals has attracted a broad range of scientific and industrial interests. We propose here a novel environmentally-friendly recycle system for precious metal ions such as gold and platinum ions using protein-rich biomass. My keynote lecture is composed of three pieces; (1) selective adsorption of precious metal ions onto proteins, (2) the mechanism stud...

The objective of the project is to examine the potential use of wool as an industrial and/or laboratory adsorbent. This will be carried out by examining the metal sorption and desorption behaviour of a series of wool powders using radiotracer probes. Wool powders will be prepared using various milling techniques, and their metal-binding properties investigated using radiotracers such as Co, Cu ...

A powerful approach to debugging and refining the knowledge structures of a problem-solving agent is to differentially model the actions of the agent against a gold standard. This paper proposes a framework for exploring the inherent limitations of such an approach when a problem solver is differentially modeled against an expert system. A procedure is described for determining a performance up...

This is the first study of adobe brick contamination anywhere in the world. Huancavelica, Peru is the site of historic cinnabar refining and one of the most mercury (Hg) contaminated urban areas in the world. Over 80% of homes in Huancavelica are constructed with adobe bricks made from Hg contaminated soil. In this study we measured total Hg concentrations in adobe brick, dirt floor, surface du...

Precious metals (PM) refining from E-waste recycling are based on hazardous hydrometallurgical processes, including cyanide leaching for gold or aqua regia palladium, which generates an important wastewater production. In this paper, we present electrochemical process, low viscous deep eutectic solvents ChCl:EG 1:2 and 1:3. Au Pd deposition parameters, but also palladium speciation were studied...

this study sougth to the effect of occ pulp fractionation on produced paper strength properties improvement. using a pressure screen, occ pulp was devided to tow distinct fractions of accept ratio (short fibers) and reject ratio (long fibers) in accordance with optimum condition of fractionation based on the previous studies. in the next stage, long fiber stream was refined and recombined with ...

Red mud is a kind of solid waste produced in the process aluminum extraction. Traditional methods red treatment, such as open-pit accumulation and chemical recovery, are costly environmentally hazardous. Gold tailings industrial by-products gold mining refining. In this study, NaOH, KOH, Na2SiO3 were used activators, their effects on properties ternary cementitious composite containing blast fu...

The practicability of a pyrometallurgical scheme for raw material processing is established as result the analysis methods intended to dearsenate and process gold-arsenic concentrates well equipment execution. conceptual design vacuum without forced movement dispersed in sublimator reaction zone materials proposed. In-process tests sublimation arsenic sulfides from gravity flotation received Ba...