stanje i perspektive u rudarstvu i odrţivi razvoj mining present state ...

Rudarstvo 2011 / Mining 2011Ukoliko koristimo LX (Environment Canada, 1991) kao kriterijum za korišćenje i odlaganje tretiranogotpada, smeše sa letećim pepelom, kao što se vidi sa slike, se sve mogu smatrati pogodnim za daljuupotrebu, bez obzira na korišćeni rastvor za izluţivanje, jer se srednji indeksi izluţivanja kreću u opseguod 9 do14,8.ZAKLJUĈAKNa osnovu dobijenih rezultata moţe se zakljuĉiti da se leteći pepeo moţe efikasno upotrebljavati zaimobilizaciju metala u kontaminiranim sedimentima. Upotrebom letećeg pepela moţe se vršitiimobilizacija dve vrste otpadnog materijala, što je jedan od osnovnih principa koncepta zeleneremedijacije. Moţe se zakljuĉiti da tehnika solidifikacije/stabilizacije ima znaĉajan potencijal u pogledurešavanja problema kako kontaminiranog sedimenta tako i problema velike koliĉine letećeg pepela iztermoelektrana, bilo u smislu njegovog korišćenja kao dodatka pri proizvodnji graĊevinskog materijala(opeke), bilo u pogledu sigurnog odlaganja na deponiju.LITERATURA1. ANS (American National Standard) ANSI/ANS-16.1. (1986). American National Standard for theMeasurement of the Leachability of Solidified Low-Level Radioactive Wastes by a Short-Term TestsProcedure. ANSI/ANS-16.1. American National Standards Institute, New York, NY.2. Bone, B.D., Barnard, L.H., Boardman, D.I., Carey, P.J., Hills, C.D., Jones, H.M., MacLeod, C.L. iTryer, M. (2004) Rewiew of scientific literature on the use of stabilisation/solidication for treatment ofcontaminated soil, solid waste and sludges, Science Report, Environment Agency, Bristol.3. Moon, D.H., Dermatas, D. (2007). Arsenic and lead release from fly ash stabilized/solidified soilsunder modified semi-dynamic leaching conditions. Journal of Hazardous Materials 141, 388–394.4. Dermatas, D. i Meng, X. (2003) Utilisation of fly ash for stabilization/solidification of heavymetal contaminated soils, Engineering Geology 70, 377-394.5. Suzuki, K., Ono, Y. (2008). Leaching characteristics of stabilized/solidified fly ash generatedfrom ash-melting plant. Chemosphere 71, 922–932.6. Mohan, S. i Ganhimathi, R. (2009) Removal of heavz metal ions from municipal solid wastelechate using coal fly ash as an adsorbent, Journal of Hazardous Materials 169, 351-359.7. Nathwani, J.S., Phillips, C.R. (1980). Leachability of Ra-226 from uranium mill tailingsconsolidated with naturally occurring materials and/or cement: II. Analysis based on mass transportequation. Water, Air and Soil Pollution 14, 389–402.8. Environment Canada (1991). Proposed Evaluation Protocol for Cement-Based Solidified Wastes,Environmental Protection Series, Report No. EPS 3/HA/9.9. Official Journal of the European Communities, L11, (2003), Council Decision 2003/33/EC of 19December 2002 establishing criteria and procedures for the acceptance of waste at landfills pursuantto Article 16 of and Annex II to Directive 1999/31/EC.477