Journal
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
Volume 37, Issue 4, Pages 1197-1207Publisher
WILEY
DOI: 10.1002/etc.4045
Keywords
Sewage sludge biochar; Microbial biomass; Soil respiration; Ecotoxicity; Plant yield; Trace elements
Categories
Funding
- Ministry of Science and Higher Education of the Republic of Poland
Ask authors/readers for more resources
Production of biochar from sewage sludge may be a promising solution for sewage sludge management and improvement of soil properties, including carbon dioxide sequestration. The aim of the present study was to compare the effects of biochars derived from different sewage sludges on soil physicochemical and biological properties, ecotoxicity, and plant yield. Three biochars (produced at a temperature of 300 degrees C) were applied into sandy acid soil in doses of 0.5, 1, and 2% (w/w). Depending on the type and dose, the application of sewage sludge biochars into the soil caused diverse effects on the parameters of soil biological activity (microbial biomass [Cmic], soil respiration, and value of metabolic quotient). No correlation between the applied dose of biochars and inhibition of Vibrio fischeri luminescence was observed. The factor with a stronger impact on the activity of V. fischeri was the type of biochar. The use of the OSTRACODTOXKIT F test (MicroBioTests) showed that the addition of sewage sludge biochar (regardless of its dose) reduced the soil toxicity to Heterocypris incongruens compared with the control soil. Asignificant increase of Poa pratensis L. biomass was obtained in soils with 1 and2% additions of each of the biochars. The addition of biochars in doses of 1 and 2% to the soil had greater effect on the content of mobile forms of Cu, Pb, and Cd than the 0.5% dose compared with the control. (C) 2017 SETAC
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available