For the purpose of this work an epiphytic lichen species, Hypogymnia physodes (L.)NyL, was used. Thalli of the lichen were treated with solutions of nitrate salts of heavy metals, including Zn(NO3)2, Cu(NO3)2, Pb(NO3)2, and Cd(NO3)2. To simulate the acid rain impact, pH of the metal mixture was lowered to pH 4, using Na2S2O5. Content of heavy metals was determined after a standard UV mineraliza...

The Cu/Al2O3 catalyzed ozonation for degrading an endocrine disruptor—alachlor in water was investigated. The Cu/Al2O3 powders were coated on a cordierite honeycomb column, which was taken as the reactor of catalytic ozonation of alachlor. Additional uncatalyzed experiments were carried out and the results were compared to those of the catalytic runs. The experimental results demonstrated that ...

Metallic mineral deposits represent natural geochemical anomalies of economically valuable commodities but, at the same time, their weathering may have negative environmental implications. Cu-sulfide been recognized as with a particularly large footprint. However, different Cu result in significantly impacts, mostly depending on conditions, but also geological characteristics (mineralogy, geoch...

the base (cu–pb–zn) and precious metals (ag±au) mineralization at the no. 4 anomaly of golojeh deposit occurred in volcanic and sub–volcanic eocene–oligocene host rocks, in the central part of the tarom–hashtjin zone. basic to intermediate volcanic, volcaniclastic and sub–volcanic rocks are dominated in the area and include andesite, basaltic andesite, trachy-andesite, dacite and tuff with affi...

Haynes, F.M., 1984. A geochemical model for sulfide paragenesis and zoning in the Cu-Fe--As--S system (Tsumeb, South West Africa/Namibia). Chem. Geol., 47: 183--190. The Cu-bearing hypogene mineralization at Tsumeb, South West Africa/Namibia, is interpreted to have resulted from the interaction of hot circulating Cu-rich saline solutions and host dQlomites. Fluids attending formation of the mai...

the cheshmeh hafez polymetal deposit is located in troud – chahshirin mountain range in southeastern damghan. in this province, the volcanism and associated mineralization are closely related to major faults anjilo and troud with nw-se trend. the exposed rocks in the study area consist of volcano clastic sequence of sandstone, tuff, volcano breccias and mostly andesitic and andesitic- basalt fl...