Scholarly record
COMPARISON OF HEAVY METALS LEACHABILITY FROM COMBUSTION WASTES USING BATCH LEACHING TESTS
Abstract
Combustion wastes, such as fly ashes and slags, can be recycled primarily by using them in road construction. Nonetheless, their potential negative impact on the environment cannot be omitted. In practice, a number of methods are used for the leaching characterization of wastes, including the standards of the European and US Environmental Protection Agencies. The studies, the results of which are presented in this article, were performed for fly ashes and slags from coal combustion and for fly ashes from combustion of municipal sewage sludge. The materials tested were characterized by determining the pH and electrical conductivity of water eluates, and the contents of moisture, volatiles, ash and percentage of carbon. The aim of the study was the assessment of differences in the leachability of heavy metals from combustion wastes using ISO, DIN and US EPA methods. In the batch leaching tests, 0.01 mol/L CaCl2, demineralized water and 2.0N HNO3 were used as leachants, respectively. The concentration of cadmium, copper, lead, nickel and zinc in eluates was analyzed using atomic absorption spectrometry (iCE 3000). The results have shown that the pH of leachants had influence on the release of heavy metals. The highest concentrations of pollutants were obtained using the US EPA method and the HNO3 solution as the leachant. Moreover, the study has shown that according to European procedures, the concentrations of released pollutants (Cu, Ni, Pb and Zn) were characteristic for inert wastes.
Publication Impact Profile
Publication details
References15
SIE (Statistical Information and Elaborations), Environment 2017, Central Statistical Office, Poland, 2017;
Moreno-Navarro F., Sol M., Rubio-Gámez M. C., Ramírez A., Reuse of thermal power plant slag in hot bituminous mixes, Construction and Building Materials, vol. 49, 2013, pp 144-150;
Koda E., Osiński P., Slope erosion control with the use of fl y-ash and sewage sludge, Annals of Warsaw University of Life Sciences – SGGW, vol. 43 (2), 2011, pp 101–111;
Directive 2010/75/EU of the European Parliament and the Council of 24 November 2010 on industrial emissions (integrated pollution prevention and control);
Sas W., Głuchowski A., Radziemska M., Dzięcioł J., Szymański A., Environmental and geotechnical assessment of the steel slags as a material for road structure, Materials, vol. 8(8), 2015, pp 4857-487;
Galvín A. P., Ayuso J., Jiménez J. R., Agrela F., Comparison of batch leaching tests and influence of pH on the release of metals from construction and demolition wastes, Waste Management, vol. 32, 2012, pp 88–95;
International Standardization Organization, ISO/TS 21268, Soil Quality - Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials - Part 1 and Part 2, 2007;
United States Environmental Protection Agency, US EPA Method 1316, Liquid-solid partitioning as a function of extract pH using a parallel batch extraction procedure, 2017;
Giergiczny Z., Properties of fly ash and strength of concrete, Construction Technologies Architecture, vol. 3, 2007, pp 44-48 (in Polish);
Li X.D., Poon C.S., Sun H., Lo I.M.C., Kirk D.W., Heavy metals speciation and leaching behaviors in cement based solidified/stabilized wasted materials, Journal of Hazardous Materials, vol. 82, 2001, pp 215–230;
Council Decision 2003/33/EC of 19 December 2002. Establishing criteria and procedures for the acceptance of waste at landfills pursuant to Article 16 and Annex II to Directive 1999/31/EC;
Houba V.J.G., Temminghoff E.J.M., Gaikhorst G.A., Vark W., Soil analysis procedures using 0.01 M calcium chloride as extraction reagent. Communications in Soil Science and Plant Analysis, vol. 31, 2000, pp 1299–1396;
Takeda A., Tsukada H., Takaku Y., Hisamatsu S., Inaba J., Nanzyo M., Extractability of major and trace elements from agricultural soils using chemical extraction methods: Application for phytoavailability assessment, Soil Science and Plant Nutrition, vol. 52(4), pp 406-417;
Adamcová D., Vaverková M.D., Břoušková E., The toxicity of two types of sewage sludge from wastewater treatment plant for plants. Journal of Ecological Engineering, vol. 17 (2), 2016, pp 33–37;
Lin H., Li G., Dong Y., Li J., Effect of pH on the release of heavy metals from stone coal waste rocks, International Journal of Mineral Processing, vol. 165, 2017, pp 1-7.
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.
