Evaluation of Phytoremediation and Bioremediation for Sandy Soil Contaminated with Petroleum Hydrocarbons

Abstract

Abstract-Soil contamination with petroleum hydrocarbons causes many problems for the surrounding environment. The current research aims at studying the performance of different in-situ remediation methods for the removal of total petroleum hydrocarbons (TPH) from sandy soil at different levels of contamination. The remediation methods that were tested include phytoremediation using alfalfa, bioremediation using Pseudomonase putida, and a combination. The soil was spiked with TPH at different levels (2.5%, 5.0% and 10.0%). after 90 days of experiments, the different treatments were able to reduce the level of contamination in the sandy soil with efficiencies up to a maximum of 99.9% for phytoremediation, 98.7% for bioremediation, and 99.0% for the combination method. The experimental results showed that the TPH remediation followed the first-order kinetics.

Use of phosphatase and dehydrogenase activities in the assessment of calcium peroxide and citric acid effects in soil contaminated with petrol

“…This confirms the results reported by numerous authors, who have indicated the negative impact of petrol on the activity of various enzymes, for example, dehydrogenases [8,9,27,28], phosphatases [27][28][29][30], catalase [9], β-glucosidase [28], peroxidases [9], urease [27,31], and nitrate reductase [32]. Oversaturation of soil with petrol considerably restricts the development or disturbs the survival of numerous soil microorganisms [33]. Borowik at al.…”

Prospects of Phytoremediation and Phytoindication of Oil-Contaminated Soils With the Help of Energy Plants

“…However, medium and especially high concentrations of petroleum products in soils inhibit the growth and development of alfalfa, as well as cause necrotic lesions of assimilation organs [Chekol, Vough, 2001;Gouda et al, 2016].…”

Stimulating the Rate of Phytoremediation of Chromolaena odorata in Crude Oil Contaminated Soil Using Inorganic Urea

“…Higher reduction observed in stimulated phytoremediated treatments may be due to the addition of urea to crude oil polluted soil. The urea might have supplied growth limiting nutrient to the plant for metabolic activities thus enhancing (stimulating) the growth and phytoremediation potential of Chromolaena odorata in the polluted soil [38][39][40]. Shtangeeva et al [41] also report that the addition of urea to crude oil polluted soil enhanced the growth of wheat in such soil.…”