J 2016

Ecotoxicity of arsenic contaminated sludge after mixing with soils and addition into composting and vermicomposting processes

VAŠÍČKOVÁ, Jana, Blanka MAŇÁKOVÁ, Marek ŠUDOMA and Jakub HOFMAN

Basic information

Original name

Ecotoxicity of arsenic contaminated sludge after mixing with soils and addition into composting and vermicomposting processes

Authors

VAŠÍČKOVÁ, Jana (203 Czech Republic, belonging to the institution), Blanka MAŇÁKOVÁ (203 Czech Republic, belonging to the institution), Marek ŠUDOMA (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. 2016, 0304-3894

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30304 Public and environmental health

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 6.065

RIV identification code

RIV/00216224:14310/16:00093480

Organization unit

Faculty of Science

UT WoS

000381533400060

Keywords in English

Sludge; Arsenic; Ecotoxicity; Bioavailability; (Vermi)composting

Tags

Tags

International impact, Reviewed
Změněno: 5/4/2017 10:19, Ing. Andrea Mikešková

Abstract

V originále

Sludge coming from remediation of groundwater contaminated by industry is usually managed as hazardous waste despite it might be considered for further processing as a source of nutrients. The ecotoxicity of phosphorus rich sludge contaminated with arsenic was evaluated after mixing with soil and cultivation with Sinapis alba, and supplementation into composting and vermicomposting processes. The Enchytraeus crypticus and Folsomia candida reproduction tests and the Lactuca sativa root growth test were used. Invertebrate bioassays reacted sensitively to arsenic presence in soil-sludge mixtures. The root elongation of L. sativa was not sensitive and showed variable results. In general, the relationship between invertebrate tests results and arsenic mobile concentration was indicated in majority endpoints. Nevertheless, significant portion of the results still cannot be satisfactorily explained by As chemistry data. Composted and vermicomposted sludge mixtures showed surprisingly high toxicity on all three tested organisms despite the decrease in arsenic mobility, probably due to toxic metabolites of bacteria and earthworms produced during these processes. The results from the study indicated the inability of chemical methods to predict the effects of complex mixtures on living organisms with respect to ecotoxicity bioassays.

Links

LM2015051, research and development project
Name: Centrum pro výzkum toxických látek v prostředí (Acronym: RECETOX RI)
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