Abstract Aluminum and iron hydroxides, formed in the stone during hydration of cement with addition special slags, significantly improve properties concrete. The low-basic calcium aluminates CA 2 6 form high-alumina slag, which releases a large amount Al(OH) 3 hydration, increases strength, density, water resistance, frost corrosion resistance hydraulic A compressed mixture concrete scrap slag ...

Groundwater in a coastal sand aquifer is enriched in arsenic as a result of historical discharges from an industrial facility on the central NSW coast. Subsequent investigations also identified arsenic in the soil within the saturated zone down-gradient of the source area. Arsenic concentrations in soil and groundwater decrease markedly along a narrow flow path towards a tidal river some 300 m ...

BACKGROUND: Radiosynovectomy is a therapy used to relieve pain and inflammation from rheumatoid arthritis and related diseases. In this study three 188Re particulate compounds were characterized according to their physico-chemical properties and their biological behavior in rabbits. The results were compared in order to establish which was the radiopharmaceutical that better fits the requiremen...

In this paper, we have proposed a simple method to covalently conjugate biotin to magnetic nanoparticles, which can be targeted to the tumour sites by using pretargeting approach with avidin or streptavidin. Magnetic nanoparticles of manganese ferrite were synthesized by alkaline coprecipitation of ferric chloride hexahydrate, ferrous sulphate heptahydrate and manganese sulphate monohydrate usi...

Sequential washing techniques using single or dual agents [sodium hydroxide (NaOH) and hydrochloric acid (HCl) solutions] were applied to arsenic-contaminated soils in an abandoned iron-ore mine area. We investigated the best remediation strategies to maximize arsenic removal efficiency for both soils and arsenic-containing washing solution through conducting a series of batch experiments. Base...

In 2001 the U.S. Environmental Protection Agency (EPA) lowered the Maximum Contaminant Level for arsenic from 50 μg/L to 10 μg/L. Public water suppliers are required to comply with the lower standard by January of 2006 and several thousand water systems nationally are looking for efficient and inexpensive ways to remove arsenic. Ferric coagulation/filtration and ferric coagulation/microfiltrati...