J 2016

The response of mercury (Hg) transformation in soil to sulfur compounds and sulfur-rich biowaste application

SZÁKOVÁ, Jiřina, Andrea BUREŠOVÁ, Lukáš PRAUS, Mercedes GARCÍA-SÁNCHEZ, Zlata HOLEČKOVÁ et. al.

Basic information

Original name

The response of mercury (Hg) transformation in soil to sulfur compounds and sulfur-rich biowaste application

Authors

SZÁKOVÁ, Jiřina (203 Czech Republic, guarantor), Andrea BUREŠOVÁ (203 Czech Republic), Lukáš PRAUS (203 Czech Republic), Mercedes GARCÍA-SÁNCHEZ (724 Spain), Zlata HOLEČKOVÁ (203 Czech Republic), Jiří GABRIEL (203 Czech Republic), Jiřina SYSALOVÁ (203 Czech Republic), Rostislav ČERVENKA (203 Czech Republic, belonging to the institution), Josef KOMÁREK (203 Czech Republic, belonging to the institution), Slávka GROHOVÁ (203 Czech Republic) and Pavel TLUSTOŠ (203 Czech Republic)

Edition

Environmental Geology (Environmental Earth Sciences), Springer, 2016, 1866-6280

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10406 Analytical chemistry

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.569

RIV identification code

RIV/00216224:14310/16:00088325

Organization unit

Faculty of Science

UT WoS

000373635400043

Keywords in English

Mercury; Biowaste; Speciation; Transformation; Soil

Tags

Tags

International impact, Reviewed
Změněno: 14/4/2017 15:19, Ing. Andrea Mikešková

Abstract

V originále

The mobility of mercury and its transformation as affected by different sulfur-rich amendments were investigated in a model laboratory incubation experiment. Two soils, Chernozem and Luvisol, differing in their physicochemical characteristics, were selected for the experiment. The soils were artificially contaminated with Hg by adding HgCl2 solution to a final concentration of 12 mg kg-1 of Hg in the soils. Subsequently, organic and inorganic amendments: (1) (NH4)2SO4, (2) L-cysteine, and (3) digestate, a biowaste from a biogas station, were applied and the soils were incubated for 21 days in the dark. Soil samples were collected after 1, 7, 14 and 21 days of incubation. At the individual sampling times 30 g of each soil was collected for determinations of pH, the mobile Hg pool, carbon derived from microbial biomass, and dehydrogenase activity. The results confirmed the important role of digestate application leading to (1) improved nutrient status and microbiological activity in the contaminated soils and (2) an increased proportion of methylmercury in the soils as well as a decrease in mercury volatilization. These findings suggested that digestate could be applied to Hg contaminated soil for effective stabilization of this element in the soil. However, long-term experiments are necessary for an evaluation of further potential Hg transformations due to the decomposition of digestate-bearing organic matter.

Links

GAP503/12/0682, research and development project
Name: Transformace sloučenin rtuti půdní mikroflórou: možné využití pro bioremediační technologie
Investor: Czech Science Foundation