Correlation between humic-like substances and heavy metals in composts

• Type: Chapter or Part of a Book
• Date: 2013

Authors

Maria E. Silva (Author) FEUP; L. Teixeira de Lemos (Author) Other; O. C. Nunes (Author) FEUP; A. C. Cunha Queda (Author) Other

Book

Title: Functions of Natural Organic Matter in Changing Environment

Pages: 511-516

ISBN: 978-078441342-5

Electronic ISBN: 978-94-007-5634-2

Publisher: Springer

Indexing

ISI Web of Knowledge

Scopus - 0 Citations

Associated Projects

UI0511 - PROJECTO ESTRATÉGICO - UI 511 - 2013-2014

Other information

Authenticus ID: P-00G-CB0

DOI: 10.1007/978-94-007-5634-2_93

Abstract (EN): The purpose of this work was to correlate the humic-like substances content with the content of six heavy metals (Zn, Pb, Ni, Cu, Cr and Cd) in some composts commercialised in Portugal. Four commercial composts, two from non-separated municipal solid waste (MC1, MC2), one from source-separated municipal solid waste (MC3) and one produced from poultry litter (PC), were analysed. The maturity of composts was characterised using the generally accepted humification indices. The MC3 compost showed the lowest heavy metal content. Zn was the heavy metal present in the highest concentration (861 mg/kg dry matter), while Cd showed to be the least representative (3.0 mg/kg dry matter). A correlation analysis indicated that the maturation characteristics of the composts, such as the humic-like substances content, play a significantly role in the bioavailability of heavy metals. © 2013 Zhejiang University Press and Springer Science+Business Media Dordrecht. All rights are reserved.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5