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- Title
IMPACT OF METALLURGICAL LADLE FURNACE SLAG ON ACID SOIL REMEDIATION IN AGRICULTURE.
- Authors
ANGER, ILDIKÓ; VOLCEANOV, ENIKÖ; PLOPEANU, GEORGIANA; ILIE, LEONARD; POPESCU, LAVINIA GABRIELA; MOISE, GEORGIANA ALEXANDRA
- Abstract
The paper presents some researches on ladle furnace slag potential to be used in agriculture, as soil amendment. The ladle furnace (LF) slag results from steel secondary refinery. The main components of LF slag used in our experimental trials were: CaO, SiO2, Al2O3, MgO. The LF slag contains high quantity of CaO, which forms different compounds with SiO2 and Al2O3, as well as unreacted CaO too. This is the main reason why this slag can be considered in agriculture as soil amendment to correct the soil acidity. The soil acidity influences the soil fertility and the crop yield. Usually, the soil acidity is corrected by using limestone or dolomite, natural materials. The utilization of LF slag as soil amendment to soil acidity is a novelty in Romania. It is presented the influence of LF slag admixture on soil remediation, namely on pH, chemical properties and heavy metal content. It is also shown the influence of ladle slag used as soil amendment on the crop yield and on the heavy metal content in the soil and cultivated plants (maize, wheat and soybean) at the experimental sites. The experimental trials indicate that the LF slag can be used for acid soil remediation, having a positive influence on soil chemical properties and increase the crop yield.
- Subjects
ROMANIA; LADLE metallurgy; SOIL remediation; STEELMAKING furnaces; ACID soils; SLAG; CROP yields; AGRICULTURE; SOIL amendments
- Publication
Romanian Journal of Materials / Revista Romana de Materiale, 2018, Vol 48, Issue 1, p76
- ISSN
1583-3186
- Publication type
Article