The effect of ash from thermal power station on the heavy metal content of Festuca arundinacea and Festuca pratensis
Due to its biological activities, adsorption and absorption properties, the soil can function as a cleaning system for many industrial pollutants in moderate concentrations. Because of the microelement content of ash, it can be used for improvement of acid soils or with microelement deficit. The pre...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
2012
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| Sorozat: | Review on agriculture and rural development
1 No. 1 |
| Kulcsszavak: | Nehézfémek, Hamu, Légszennyezés |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/55190 |
| Tartalmi kivonat: | Due to its biological activities, adsorption and absorption properties, the soil can function as a cleaning system for many industrial pollutants in moderate concentrations. Because of the microelement content of ash, it can be used for improvement of acid soils or with microelement deficit. The present paper describes the possibilities of using thermal power station ash as amendment and source of microelements for two gramineous species, used as forage and energetic plants. For the experiment design we used randomized blocks with 3 repetitions. The ash was incorporated in soil before sowing of Festuca arundinacea and Festuca pratensis species. Experimental variants were the following: V0 – 0 t/ha non-treated control, V1 – 1 t/ha, V2 – 3 t/ha and V3 – 5 t/ha ash. Plant samples were collected from the above-ground organs, one year after sowing. Heavy metal content was determined using atomic absorption spectroscopy method. Regarding the metal content, the data show that the application of ashes in different dosages had similar effects on both of the gramineous species. The zinc content decreases slightly with the increase of ash dosage at both of the species. Compared to control variant, the copper content increases directly with the amount of applied ash at Festuca arundinacea and decreases at Festuca pratensis. Cobalt, nickel and manganese concentrations presented an increase due to higher ash concentrations at both of the plant species compared to control. From all of the assessed metal contents, manganese presented the highest concentrations in plants. The concentrations are low compared to non-treated control, thus there was no toxicity effect of the studied heavy metals from thermal power station ashes. |
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| Terjedelem/Fizikai jellemzők: | 244-248 |
| ISSN: | 2063-4803 |