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EFFECT OF OIL BACTER, OIL FUNGI AND ALBIZIA (PARASERIANTHES FALCATARIA L. NIELSEN)-MYCCHORHIZA ON PHYTOREMEDIATION OF OILY SLUDGE CONTAMINATED SOIL

Nia Rossiana, Titin Supriatun, Nadia Istiqomah

Abstract
    Phytoremediation is a promising technology for the clean-up of oily sludge petroleum-contaminated soils, especially in the tropics where climatic conditions favour plant growth and microbial activity and where financial resources are limited. The objective of this work was to test for their ability to stimulate consortium bacteria (oil bacter : Pseudomonas sp, Alcaligenes sp and Flavobacterium sp (m1) and consortium of fungi (oilfungi: Aspergillus sp1, Aspergillus sp2, Penicillium sp1 (m2) in soil contaminated with 30% and 35% (w/w) of oilysludge. After 1 months composted then planted with tropical legume plant species Albizia (Paraserianthes falcataria L. Nielsen)- mycchorhiza that could be used for phytoremediation. PAH (Polyaromatic Hydrocarbons) and heavy metals (Cd, Cr, Cu, Ni, Pb, Zn,) content were analyzed after 2, 6 and 8 months of phytoremediation in greenhouse experiments. Our results showed that after 8 months of phytoremediation, oil bacter performed better than oil fungi in reducing PAH in 30% of concentration oily sludge. Oil bacter treatment effectively decreased Pb (77,16%),Cu (68,56%), Cd (60,44%), Cr (76,24%) levels in 30%, while oil fungi only lowered Zn (87,17%) and Ni (71,32%) at concentration of 35% of oily sludge phytoremediation contaminated soil. The population of bacteria and percentage of infection mycorrhiza at the albizia roots of the waste 30% are higher than at inoculated by fungi, which is 76.67%. Growth of albizia (Paraserianthes falcataria L. Nielsen) was determined in oily sludge-contaminated soil with inorganic fertilizer. Resulted in the greatest reduction in PAH, heavy metals levels across the plant treatments following the 8 months of study. The studies demonstrated that oil bacter were considerably important for phytoremediation of oilysludge -contaminated soil-

Key words: bacter and fungi