scholarly journals Optimization and Performance Test of Oil Spill Dispersant at Bioremediation of Contaminated Soil with Heavy Oil by Bioslurry Technique

2020 ◽  
Vol 25 (1) ◽  
pp. 1
Author(s):  
Muhammad Abdul Aziz ◽  
Mohamad Yani ◽  
Agung Dhamar Syakti

Petroleum industry activities produce waste such as petroleum hydrocarbons which damage to the soil environment due to changes in soil physical, chemical and biological properties. Oil Spill Dispersant (OSD) is a product that can break down waste of oil into small parts so that it can be dispersed naturally. Laboratory experiments aimed to find out optimize and performance test of OSD in the process of bioremediation with using bio-slurry technique on contaminated soil with heavy oil was carried out at Laboratory of Surfactant and Bio-energy Research Center (SBRC), Research and Community Service Institute of Bogor Agricultural University on January - August 2018 using contaminated soil with heavy oil. The experiment used Response Surface Method (RSM) with two factors, namely the incubation time factor (X1) and the Dispersant to oil ratio (DOR) (X2). The observed variables were soil Total Petroleum Hydrocarbons (TPH), pH, total microbes, and Chemical Oxygen Demand (COD) at soil solution. The results showed that the treatment of incubation time and its combination with DOR significantly reduced soil TPH, increased soil acidity, and increased soil total B. megaterium, but did not significantly affect on COD in soil solutions. Optimization of OSD with RSM showed that the higher DOR of OSD and the longer the incubation time, the higher also the rate of biodegradation of TPH. The optimum conditions were reached at DOR of 1.16:1 and incubation time of 7 days which were able to degrade soil TPH of 54.30%. The optimum conditions of soil pH (8.825) was reached at DOR of 1:1 and incubation time of 5 days, as well as the optimum conditions of B. megaterium (8.35 log CFU g-1) was reached at DOR of 0.86:1 and incubation time of 7 days. Oil spill dispersant (OSD) increased COD in soil solution in both uncontaminated and contaminated soils with heavy oil.

2001 ◽  
Vol 43 (2) ◽  
pp. 291-295 ◽  
Author(s):  
J. Vouillamoz ◽  
M. W. Milke

The effect of compost on phytoremediation of diesel-contaminated soils was investigated using 130 small (200 g) containers in two screening tests. The experiments were conducted in a controlled environment using ryegrass from seed. Containers were destructively sampled at various times and analyzed for plant mass and total petroleum hydrocarbons. The results indicate that the presence of diesel reduces grass growth, and that compost helps reduced the impact of diesel on grass growth. The addition of compost helps increase diesel loss from the soils both with and without grass, though the addition of grass leads to lower diesel levels compared with controls. A second set of experiments indicates that the compost helps in phytoremediation of diesel-contaminated soil independent of the dilution effect that compost addition has. The results indicate that the compost addition allowed diesel loss down to 200 mg TPH/kg even though the compost would be expected to hold the diesel more tightly in the soil/compost mixture. The simplicity of the screening tests led to difficulties in controlling moisture content and germination rates. The conclusion of the research is that the tilling of compost into soils combined with grass seeding appears to be a valuable option for treating petroleum-contaminated soils.


2005 ◽  
Vol 2005 (1) ◽  
pp. 797-800 ◽  
Author(s):  
Anna Meudec ◽  
Jacques Dussauze ◽  
Eric Deslandes ◽  
Nathalie Poupart

ABSTRACT Coastal salt-marsh vegetations are directly exposed to accidental marine pollution by oil spill, as it was the case in winter of the year 2000 following Erika tanker oil spill in France. As petroleum is incorporated in sediment, it tends to coat aerial parts of plants. Among fuel hydrocarbons, polycyclic aromatic hydrocarbons (PAHs) are the most toxic compounds known in marine organisms. Although their low water solubility, they can be taken up and bioaccumulated by plants. This work was conducted to determine whether PAHs, like naphthalene, phenanthrene, pyrene and benzo(a)pyrene, present in artificially fuel contaminated soils are transferred or not to aerial part of the coastal and edible plant, Salicornia fragilis. Sediments were mixed up with N°6. heavy fuel oil. Young plants of Salicornia were sampled in spring at the “Aber du Conquet” (Finistère, France), and cultured artificially in three different mixture conditions of oil and sediment: 0.2%, 2% or 20%. Two durations of culture were tested: one or five weeks. At the end of the culture, shoot are then cut off and PAHs concentrations were determinate by (GC-MS). Results showed that whatever the time of exposure and the concentrations of fuel oil in soil, significant PAHs concentrations were measured in Salicornia tissues. Phenanthrene and pyrene are the most abundant compounds. The particular morphology of Salicornia plants and the absence of PAHs in control also suggest that root uptake was the main pathway for accumulation of PAHs in this halophytic plant. By this capacity to uptake PAHs from fuel oil contaminated soil, Salicornia fragilis appears as a potential bioindicator of marine pollution by petroleum and may have a role in remediating contaminated soil.


2018 ◽  
Vol 14 (3) ◽  
pp. 48-56
Author(s):  
Noor Mohsen Jabbar ◽  
Estabriq Hasan Kadhim ◽  
Alaa Kareem Mohammed

This study was focused on biotreatment of soil which polluted by petroleum compounds (Diesel) which caused serious environmental problems. One of the most effective and promising ways to treat diesel-contaminated soil is bioremediation. It is a choice that offers the potential to destroy harmful pollutants using biological activity. The capability of mixed bacterial culture was examined to remediate the diesel-contaminated soil in bio piling system. For fast ex-situ treatment of diesel-contaminated soils, the bio pile system was selected. Two pilot scale bio piles (25 kg soil each) were constructed containing soils contaminated with approximately 2140 mg/kg total petroleum hydrocarbons (TPHs). The amended soil: (contaminated soil with the addition of nutrients and bacterial inoculum), where the soil was mixed with 1.5% of sawdust, then supplied with the necessary nutrients and watered daily to provide conditions promoting microorganism growth. Unamended soil was prepared as a control (contaminated soil without addition).  Both systems were equipped with oxygen to provide aerobic conditions, incubated at atmospheric temperature and weekly sampling within 35 days. Overall 75% of the total petroleum hydrocarbons were removed from the amended soil and 38 % of the control soil at the end of study period. The study concluded that ex-situ experiment (Bio pile) is a preferable, economical, and environmentally friendly procedure, thus representing a good option for the treatment of soil contaminated with diesel.


2009 ◽  
Vol 89 (1) ◽  
pp. 21-29 ◽  
Author(s):  
Ravanbakhsh Shirdam ◽  
Ali Daryabeigi Zand ◽  
Gholamreza Nabi Bidhendi ◽  
Nasser Mehrdadi

To date, many developing countries such as Iran have almost completely abandoned the idea of decontaminating oil-polluted soils due to the high costs of conventional (physical/chemical) soil remediation methods. Phytoremediation is an emerging green technology that can become a promising solution to the problem of decontaminating hydrocarbon-polluted soils. Screening the capacity of native tolerant plant species to grow on aged, petroleum hydrocarbon-contaminated soils is a key factor for successful phytoremediation. This study investigated the effect of hydrocarbon pollution with an initial concentration of 40 000 ppm on growth characteristics of sorghum (Sorghum bicolor) and common flax (Linum usitatissumum). At the end of the experiment, soil samples in which plant species had grown well were analyzed for total petroleum hydrocarbons (TPHs) removal by GC-FID. Common flax was used for the first time in the history of phytoremediation of oil-contaminated soil. Both species showed promising remediation efficiency in highly contaminated soil; however, petroleum hydrocarbon contamination reduced the growth of the surveyed plants significantly. Sorghum and common flax reduced TPHs concentration by 9500 and 18500 mg kg‑1, respectively, compared with the control treatment.


2020 ◽  
Vol 10 (6) ◽  
pp. 1981
Author(s):  
Torsha Goswami ◽  
Filip M. G. Tack ◽  
Lenka McGachy ◽  
Marek Šír

Yeast-derived biosurfactants may substitute or complement chemical surfactants as green reagents to extract petroleum hydrocarbons from contaminated soil. The effectiveness of contaminant clean-up by sophorolipids was tested on kerosene-contaminated soil with reference to traditional synthetic surfactants. The sophorolipids produced by the yeast Candida bombicola CB 2107, cultivated with the carbon sources 10 g/L glucose and 10 g/L rapeseed oil, were most effective in contaminant removal. This biosurfactant revealed a critical micelle concentration of 108 mg/L which was close to that of Triton X-100 (103 mg/L), the synthetic surfactant considered as reference. It outperformed Triton X-100 in reducing kerosene concentrations (C10–C40) in contaminated soils. In a soil initially containing 1080 mg/kg of C10–C40, the concentration was reduced to 350 mg/kg using the biosurfactant, and to 670 mg/kg using Triton-X. In the soil with initial concentration of 472 mg/kg, concentrations were reduced to 285 and 300 mg/kg for biosurfactant and Triton X-100, respectively. Sophorolipids have the potential to replace synthetic surfactants. Properties and performance of the biosurfactants, however, strongly differ depending on the yeast and the growing conditions during production.


Author(s):  
Yiling Zhang ◽  
Dehong Kong ◽  
Sheng Sun ◽  
Zhiguo Luo ◽  
Peng Luo

Bioremediation of soil contaminated by pipeline spills in the Daquin region of China is presented in this paper. The objective of the study was to determine the nutrient ratio required for the bioremediation of soil contaminated by Daqing crude oil. Several experiments were conducted using different proportions of C:N:P:K to choose the optimum ratio of nutrients to be applied for bioremediation, C is supplied from the crude oil in the contaminated soil. The moisture content, porosity, PH and temperature of the contaminated soil were adjusted for optimum conditions. The experimental bioremediation technology was conducted in a treatment unit that was 0.5 m in length, 0.7 m in width, and 1.5 m in height. The results showed that the degradation rate of Total Petroleum Hydrocarbons (TPH) increased with increased concentrations of crude oil in the soil. At the beginning of the bioremediation experiments, the degradation rate of THP is high, but it gradually slowed over the course of the experiment. The degradation rate of TPH averaged 98% over 8 months.


Author(s):  
Vilma ŽIVELYTĖ ◽  
Saulius VASAREVIČIUS ◽  
Irma GALGINIENĖ

Decades ago, oil spill has become a global issue. It effects not only environment but also economic life. Oil spills occur due to tanker disasters, wars, operation failures, during transportation, storage, use of oil and other accidents. Soil contaminated with petroleum effects human health, causes organic pollution of groundwater, which limits its use and decreases the agricultural productivity of the soil. Therefore, it is important to clean up oil spills as quickly as possible. Nowadays researchers are looking for new technologies that tackle three most important factors related with the oil spill clean-up: money, efficiency and time. The aim of this study was to evaluate the potential of bioremediation of petroleum hydrocarbons in oil-contaminated soil using silica nanocomposite. According to the findings, silica nanocomposite might increase microbial activity during biodegradation of petroleum hydrocarbons in soil because of the ability of nanoparticles to absorb water and keep moisture in soil thus creating a favourable environment for microorganisms. The study of biodegradation with the use of silica nanocomposite was carried out for a period of ten weeks in cooperation with the company Grunto Valymo Technologijos.


2019 ◽  
Author(s):  
agus jatnika effendi ◽  
Marita Wulandari

Alternative techniques for treated contaminated soil are physical chemicals and one of them with ultrasonic irradiation. Ultrasonic is widely studied in soil or sediment with several types of contaminants, both heavy metals and organic matter. According to previous research, ultrasonic power not only increases the desorption process or leaching contaminants from the soil but also plays an important role in the formation of radicals (•OH) which are oxidizers involved in the oxidation process. The main reactor has a dimension of 21 cm × 21 cm × 18 cm. The system used is a bath system, where the transducer is attached under the bath (reactor) so that it indirectly produces sonication. Contaminated soil has low permeability and obtained from conventional former petroleum mining land in Grobogan Regency, Central Java with initial concentrations of TPH and oil & grease of 334100 mg / kg and 87700 mg / kg. Based on optimum time test, it can be seen that the decrease in TPH was significant at the initial 15 minutes of sonication while the rest was relatively stable. At optimum conditions, TPH decreases efficiency at a frequency of 48 kHz at a soil / liquid ratio of 1: 9 (gr / ml) and a power of 160 watts is 61.03%


2013 ◽  
Vol 641-642 ◽  
pp. 174-177 ◽  
Author(s):  
Ya Ming Dong ◽  
Yu Hua Meng ◽  
Lin Li ◽  
Qi You Liu ◽  
Chao Cheng Zhao

In this paper, Fenton oxidation technology was used for oxidation treatment of soil contaminated by heavy oil, and environmental conditions were investigated for improving the effect of Fenton oxidation. The results showed that under the direct sunlight, liquid to soil was 2:1, pH was 5, 10.0mL 18 mmol•L-1 Fe2+ and 10.0mL 30%H2O2 were added to 1000g soil contaminated by heavy oil which contained 8% petroleum hydrocarbons, the petroleum hydrocarbons reduced from 5.74% to 2.92%.


2017 ◽  
Author(s):  
Charlotte Marchand ◽  
Fabio Kaczala ◽  
Yahya Jani ◽  
William Hogland

Underground storage tanks uses for waste cars draining contain many hazardous materials including hydrocarbons. These compounds pose a significant threat to the environment and affect negatively the health of living. Phytoremediation is an environmental friendly method used during the last few decades to eliminating organics pollutants from soil, sediment and water. The remediation capability of alfalfa (Medicago sativa) to treat petroleum-contaminated soil from an old car scrap yard in Nybro, Sweden was further investigated using greenhouse pot-scale experiments. After five months, alfalfa survival capacity and dry biomass were significantly lower in contaminated soil (CS) in comparison to non-contaminated soil (NCS). Only 5% of plants survived in CS and petroleum hydrocarbon C10-C50 content in planted treatment were not statistically lower in comparison to the unplanted treatment. Further studies are in process to evaluate the possible degradation of hydrocarbons using organic amendment


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