STUDY REGARDING THE PRESENCE OF SOME HEAVY METALS (CHROMIUM, COPPER, MANGANESE AND ZINC) IN THE GREEN WASTE COMPOST

Irina SMICAL; Adriana  MUNTEAN; Valer  MICLE; Zoltán  TÖRÖK

doi:10.24193/subbchem.2019.1.05

Authors

Irina SMICAL Department of Engineering of Mineral Resources, Materials and Environment, North University Centre of Baia Mare, Technical University, Cluj-Napoca, , Baia Mare, Romania. Email: irina.smical@cunbm.utcluj.ro. https://orcid.org/0000-0002-2406-2420
Adriana MUNTEAN Maramureș Water Management System, Someș-Tisa Basinal Water Administration, Baia Mare, Romania. Corresponding author: irina.smical@yahoo.com.
Valer MICLE Department of Environmental Engineering and Sustainable Development Entrepreneurship, Faculty of Materials and Environmental Engineering, Technical University, Cluj-Napoca, Romania Email: valer.micle@imadd.utcluj.ro. https://orcid.org/0000-0003-1102-4537
Zoltán TÖRÖK Faculty of Environmental Science and Engineering, Babeş-Bolyai University; ISUMADECIP Institute, Cluj-Napoca, Romania. Email: zoltan.torok@ubbcluj.ro. https://orcid.org/0000-0002-4625-6525

DOI:

https://doi.org/10.24193/subbchem.2019.1.05

Abstract

Composting is one of the most effective recycling method of green waste. The presence of some heavy metals, such as chromium, copper, manganese and zinc may influence the compost quality. The bioavailable and unavailable metal forms for plants determined by sequential analysis showed similarities in relation to the percentages of extracted forms. The lowest percentages were recorded for the bioavailable metal forms for plants uptake. Thus, the succession F6>F5>F4>F3>(F1+F2) is characteristic for chromium, the succession F5>F6>F4>F3>(F1+F2) is characteristic for copper and zinc and the succession F5>F4>F6>F3>(F1+F2) is characteristic to zinc and manganese. Thus, by adding some organic additives, like manure, the micronutrients and heavy metals regime is influenced.

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