J 2014

Effects of combined composting and vermicomposting of waste sludge on arsenic fate and bioavailability

MAŇÁKOVÁ, Blanka, Jan KUTA, Markéta SVOBODOVÁ and Jakub HOFMAN

Basic information

Original name

Effects of combined composting and vermicomposting of waste sludge on arsenic fate and bioavailability

Authors

MAŇÁKOVÁ, Blanka (203 Czech Republic, belonging to the institution), Jan KUTA (203 Czech Republic, belonging to the institution), Markéta SVOBODOVÁ (203 Czech Republic, belonging to the institution) and Jakub HOFMAN (203 Czech Republic, guarantor, belonging to the institution)

Edition

JOURNAL OF HAZARDOUS MATERIALS, AMSTERDAM, ELSEVIER SCIENCE BV, 2014, 0304-3894

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.529

RIV identification code

RIV/00216224:14310/14:00079382

Organization unit

Faculty of Science

DOI

UT WoS

000344428700063

Keywords in English

Sludge; Arsenic; Composting; Vermicomposting; Bioavailability

Tags

Tags

International impact, Reviewed
Změněno: 20/3/2015 09:34, Ing. Filip Vaculovič

Abstract

V originále

Composting and vermicomposting are traditional processes for the treatment of sludge. During these processes, the humification of organic matter has a significant effect on the physicochemical form and distribution of heavy metals. In this study, industrial sludge (groundwater treatment waste) contaminated by arsenic (396 +/- 1 mg kg(-1)) was used. Such sludge poses a significant challenge with respect to effective treatment. Composting, vermicomposting (with Eisenia fetida), and the combined approach of composting and vermicomposting were performed to determine the evolution of arsenic speciation, mobility and bioavailability. The composting/vermicomposting was done with sludge, horse manure, and grass in the ratios of 3:6:1. A solution of 0.1 M NH4COOCH3 was used as a single extraction solvent for determination of the mobile arsenic pool and targeted arsenic species (As-III, As-V, monomethylarsenic acid - MMA(V), dimethylarsenic acid - DMA(V)). The analysis of arsenic in the extracts was carried out by means of HPLC-ICP-MS spectrometry. In addition, the earthworm species E. fetida was used for bioaccumulation tests that followed the compost and vermicompost processes. The obtained results indicate a reduction in arsenic mobility and bioavailability in all matured composts and vermicomposts. The combined process exhibited a greater effect than compost or vermicompost alone. (C) 2014 Elsevier B.V. All rights reserved.

Links

LM2011028, research and development project
Name: RECETOX ? Národní infrastruktura pro výzkum toxických látek v prostředí
Investor: Ministry of Education, Youth and Sports of the CR
LO1214, research and development project
Name: Centrum pro výzkum toxických látek v prostředí (Acronym: RECETOX)
Investor: Ministry of Education, Youth and Sports of the CR