Authors: Fernando Reynel Fundora Tellechea Marco Antônio Martins Alexsandro Araujo da Silva Emanuela Forestieri da GamaRodrigues Meire Lelis Leal Martins
Publish Date: 2016/06/03
Volume: 23, Issue: 18, Pages: 18027-18033
Abstract
This study evaluated the use of sugarcane filter cake and nitrogen phosphorus and potassium NPK fertilization in the bioremediation of a soil contaminated with diesel fuel using a completely randomized design Five treatments uncontaminated soil T1 soil contaminated with diesel T2 soil contaminated with diesel and treated with 15 wt filter cake T3 soil contaminated with diesel and treated with NPK fertilizer T4 and soil contaminated with diesel and treated with 15 wt filter cake and NPK fertilizer T5 and four evaluation periods 1 60 120 and 180 days after the beginning of the experiment were used according to a 4 × 5 factorial design to analyze CO2 release The variables total organic carbon TOC and total petroleum hydrocarbons TPH remaining in the soil were analyzed using a 5 × 2 factorial design with the same treatments described above and two evaluation periods 1 and 180 days after the beginning of the experiment In T3 and T5 CO2 release was significantly higher compared with the other treatments Significant TPH removal was observed on day 180 when percent removal values were 619 701 682 and 759 in treatments T2 T3 T4 and T5 respectively compared with the initial value T1
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