The red mud (RM) has been used as an alternative low-cost adsorbent to remove trace elements, with the adsorption onto sodalite surface described main removal mechanism for elements. However, recent studies have shown that precipitation might be of great importance some metals using natural and thermal activated RM. Therefore, aim this study was identify responsible Cd(II), Pb(II) Zn(II) from a...

Bama is one of the major concentrating plant in Iran which treats nearly 1500 tons per day sulphidic lead and zinc ore. Large amount of oxidized ore exist in Bama which has been extracted along with sulphidic ore. The main objective of the present investigation was the up-grading of the ore from Goshfil which is the major deposit in Bama. The ore contained about 16% zinc as smithsonite, about 1...

The lead and zinc sample from Goosh-e-Fill mine with 2.4%Pb, 8.0%Zn and 10.0% Fe, was used in different flotation experiments to recover lead and zinc minerals. The valuable minerals in prepared sample were oxidized and the results showed that the lead minerals floated at pH= 9.5 and 11.5, probably it can be due to existence of two or more types of lead minerals. The best result was achieved fo...

The plant species Pinus halepensis grows spontaneously on heavily polluted mine tailings dumps of Campo Pisano (Sardinia, southwestern Italy). area is characterized mainly by Zn, Pb, and Cd. Sampling campaign was done, related to soils materials (roots, barks, wood, needles), aimed at evaluating the main mineralogical characteristics, metal content, accumulation, translocation behavior. substra...

Stibioclaudetite is a new mineral species with ideal chemistry AsSbO3. The symmetry is monoclinic, P21/n, with a 5 4.5757(4) Å, b 5 13.1288(13) Å, c 5 5.4216(5) Å, β 5 95.039(4)°, V 5 324.44(5) Å, Z 5 4, and dcalc 5 5.009 g/cm. The strongest X-ray lines (calculated) are 3.512 (100), 3.282 (82), 3.238 (71), 2.279 (34), and 4.995 (32). The average of ten microprobe analyses is 45.15% As2O3 and 55...

In archaeology, the discovery of ancient medicines is very rare, as is knowledge of their chemical composition. In this paper we present results combining chemical, mineralogical, and botanical investigations on the well-preserved contents of a tin pyxis discovered onboard the Pozzino shipwreck (second century B.C.). The contents consist of six flat, gray, discoid tablets that represent direct ...

The release of phosphorus (P) and zinc (Zn) from swine manure compost and from soils applied with swine manure compost can be accelerated by colloidal particles. This study investigated the concentrations and chemical species of P and Zn in water-dispersible colloids (WDCs) collected from swine manure compost by using X-ray absorption fine structure (XAFS) spectroscopy. A filtration and ultrace...