arsenic leaching Articles

  • Desorption kinetics and leaching study of arsenic from arsenite/arsenate-loaded Natural Laterite

    Desorption kinetics of arsenite- and arsenate-loaded Natural Laterite (NL) is performed under varying NaOH concentration (0.05-0.3 mol/L) and pH (4.0-11.0) of the desorption medium. The kinetic desorption data are well fitted to pseudo-second order kinetic model. The leaching of NL under aqueous medium is performed in the pH range of 2-12. Separately arsenite- and arsenate-loaded NL is leached ...


    By Inderscience Publishers

  • Minimizing Arsenic Leaching from Water Treatment Process Residuals

    Ferric chloride addition was investigated for treatment of As-laden spent regeneration brine from ion exchange processes. Furthermore, varying conditions and calcium addition were investigated for the stabilization of the resulting As-laden solids. Arsenic, sulfate, bicarbonate, and chloride concentrations in the spent brine (300 mg/L, 605 mg/L, 305 mg/L, and 24 g/L, respectively) were orders of ...

  • Arsenic in Soil and CCA Treated Wood by Field Portable XRF

    Chromated copper arsenate (CCA) has been the most widely used wood preservative for decks, playgrounds and exterior housing structures. However, in recent years, issues surrounding the use of CCA preservative chemical have escalated, ...

  • Field investigation of arsenic in ceramic pot filter-treated drinking water

    Ceramic pot filters (CPFs) is one of several household water treatment technologies that is used to treat drinking water in developing areas. The filters have the advantage of being able to be manufactured using primarily locally available materials and local labor. However, naturallyoccurring arsenic present in the clay used to make the filters has the potential to contaminate the water in ...


    By IWA Publishing

  • Mechanisms of arsenic and fluoride release from Chacopampean sediments (Argentina)

    We have examined the sources and mechanisms that control the release of fluoride and arsenate from fluvial and loess sediments collected from the Chacopampean region, Argentina. The two types of sediment show slight differences regarding the mechanism of release. In fluvial sediments the release of fluoride seems to be controlled by the dissolution of primary F–bearing minerals, such as ...


    By Inderscience Publishers

  • The Pueblo Viejo Gold Mine - THIOTEQ for Copper Recovery - Case Study

    Increasing output of metals by precipitating copper sulfide in the gold mining industry. Facts and figures Process The Pueblo Viejo Mine processes 24,000 tons per day of polymetal ores containing gold, silver, copper and zinc. Full operation was achieved in 2014. Revitalizing resources Recovering up to 12,000 tons of copper ...


    By Paques Technology B.V.

  • Vietnam​ searches for solutions to deal with domestic e-waste

    Much of the world’s electronic waste ends up in Vietnam — not only cell phones, computers, printers and TVs, but also items many people may not think of when they consider e-waste, such as washing machines, microwaves and fans. This waste is often burned or dumped in landfills where toxicants ...


    By Ensia

  • A Trace of Arsenic

    The cans of baby formula invaded Brian Jackson’s Dartmouth College lab late in 2010. His team picked up an armful of popular brands at the food co-op in Hanover, N.H. Then another armload. Eventually Jackson had a cabinet full of the brightly labeled canisters. Today, he still keeps a few in his office. Not as clutter — that’s not his style. He just likes to keep his toxicology ...


    By Freytech Inc.

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you