ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Gyöngyösoroszi is an abandoned lead-zinc sulphide ore mining area in Hungary. Thediffuse pollution sources of mining origin identified in the area and the residual pollution afterremoval of the point sources will be subjected to combined chemical- and phytostabilisation. Toselect the best chemical stabiliser laboratory scale experiments were performed in microcosms. Thefollowing chemical additives were tested in various concentrations: three different fly ashes, lignite,alginite, hydrated lime, raw phosphate, iron hydroxide wastes from drinking-water treatment, redmud and the mixture of selected ones. The stabilisation of toxic metals in the soil was monitored byan integrated methodology, which combined physico-chemical analysis with toxicity testing. Basedon the chemical analytical and the bacterial and plant toxicity test results, one of the tested fly ashtypes was the most effective: the mobile Cd and Zn concentration decreased by 50–99% in the flyash treated contaminated soil, the bacterial and plant toxicity decreased by 30-70%, and thebioaccumulated metal amount by 70%. The combination of lignite, alginite, lime and phosphate wasalso efficient
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.20-21.315.pdf
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