Lotus corniculatus Crop Growth in Crude Oil Polluted Soil. Part1 Total Petroleum Hydrocarbons Reduction of Polluted and Cultivated Soil

Smaranda Masu

Abstract


The use of power plant fly ash, by its physical-chemical properties, can significantly change the characteristics of soils polluted with oil (Total Petroleum Hydrocarbons, TPH), in their rehabilitation process, if combined with biodegradable organic materials, wastes such as sewage sludge from municipal wastewater treatment plant. Maintaining vegetation on soils polluted with 80.5 ± 3.9 g·kg-1 D.M. of TPH under perennial regime specific to bird’s foot trefoil (Lotus corniculatus), demonstrates the tolerance of the plant to the created conditions by the treatment of polluted soil with adequate amounts of fertilizer and fly ash from burning coal in power stations. The addition of 50-500 g fly ash per vegetation pot equipped with crude oil polluted soil mixed with 250 g sewage sludge per pot has reduced the oil content in the soil, in two ways: on the one hand influenced by the state of development of plants and on the other hand by weather conditions (alternation of seasons). The amount of TPH lost during the 16 months of vegetation in soils polluted with 80.5±3.9 g·kg-1 D.M. was 73.3-77.5 g·kg-1 D.M.

Keywords


fly ash; Lotus corniculatus; phytoremediation; polluted soil; sewage sludge; Total Petroleum Hydrocarbons

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LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
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Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Bioengineering Faculty of Animal Resources
300645, Timişoara, Calea Aradului 119, Romania

E-mail: spasb [at] animalsci-tm.ro
Phone: +40-256-277160, Fax.: +40-256-277110