scholarly journals Biodegradation Potentials of Aspergillus sydowii and Fusarium lichenicola on Total Petroleum Hydrocarbon in an Oilfield Wastewater in Rivers State

Author(s):  
Williams, Janet Olufunmilayo ◽  
Aleruchi Owhonka

This study investigated the potential of Aspergillus sydowii and Fusarium lichenicola as mixed cultures in the biodegradation of Total Petroleum Hydrocarbons TPHs in oilfield wastewater. Oilfield wastewater was collected from an onshore oil producing platform and biodegradation of total petroleum hydrocarbons was investigated using standard methods. Fungi were isolated from oilfield wastewater contaminated soils obtained from the vicinity of the oil producing platform. Experimental control set-up and treatment with mixed culture of fungal isolates were periodically analyzed on days 7 and 21 intervals for total petroleum hydrocarbon degradation using Gas Chromatography (GC). The total amount of TPHs on day 1 recorded 381. 871 mg/l.  The amount of TPHs on days 7 and 21 in the mixed culture of fungi was 108.975 mg/l and 21.105 mg/l respectively while TPHs in control was 342.891 mg/l and 240.749 mg/l respectively. There was a significant difference between the mixed culture and the control on days 7 and 21 at p≤0.05. The results therefore revealed actual and significant reduction of TPHs in the mixed culture. In addition, there was clearance of n-alkanes by the mixed culture. This suggests that fungi have great potentials in biodegradation of TPHs and in remediation of TPH contaminated environments.

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.


2018 ◽  
Vol 3 (2) ◽  
pp. 173
Author(s):  
Deny Yogaswara ◽  
Khozanah Khozanah

Sumba Sea is an Indo-Australian tectonic plate transition zone that has a huge biodiversities resources and also behalf of an international shipping lane zone from southern of Indonesia to Australia and New Zealand, and as the return. In addition, Sumba Sea is also a kind of outer boundary of Indonesia, that is necessary to do basic environmental monitoring as the authorities in the management of outer sea zone. Indonesia does not have representative environmental quality database including the pollution of Total Petroleum Hydrocarbons (TPH). This study purposes to determine the partial distribution and concentration of TPH in sediments in Sumba Sea, East Nusa Tenggara. The research was conducted in August 2016 using Research Vessel of Baruna Jaya VIII. Samples were collected using a box core, preserved in amber glass jar bottle and stored at 4°C for further analysis in the laboratory. In the laboratory, sediment samples were extracted using dichloromethane and n-hexane for three times extraction. Furthermore, samples were evaporated before added by tetrachloroethylene solvent. Samples were measured with Fourier Transform Infra Red (FTIR) at wavelength 2850-2950 cm<sup>-1</sup>. The results showed that the pollution of Total Petroleum Hydrocarbon (TPH) in the Sumba Sea was detected at all sampling station based on identified of hydrocarbon functional groups. The partial distribution of TPH is evenly distributed and covered all stations on low concentrations. The highest concentration of TPH was detected at station 10 as 4.348 ppm


2008 ◽  
Vol 33 (1) ◽  
pp. 35-42 ◽  
Author(s):  
A. R. Nascimento ◽  
R.L. Ziolli ◽  
J.T. Ararun, Jr ◽  
C.S. Pires ◽  
T.B. Silva

No presente trabalho os parâmetros de desempenho (validação intralaboratorial) da metodologia de determinação de TPH (Total Petroleum Hydrocarbons) foram determinados por detecção na região do infravermelho com o equipamento da Infracal TOG/TPH, visando aplicação em amostras de areia contaminadas com petróleo. Os ensaios foram realizados utilizando Óleo Marine Fuel 380, com densidade igual 0,987 g cm-3 e viscosidade de 5313 cP a 20°C. Este óleo foi fornecido pelo Centro de Pesquisa da Petrobrás (CENPES/PETROBRÁS/RJ), sendo o mesmo óleo derramado no acidente ocorrido em janeiro de 2000, na Baia de Guanabara, RJ, quando 1.300 m3 vazaram do duto que interliga a REDUC (Refinaria Duque de Caxias, RJ) ao terminal da Ilha d’Água/RJ, atingindo praias. Os resultados da validação indicaram que o desempenho da metodologia foi favorável à aplicação que se destina. Entre os parâmetros metrológicos obtidos neste trabalho, o limite de detecção do método foi de 4,06 mg L-1, consideravelmente inferior à faixa de concentração normalmente obtida para amostras em tais situações.


Author(s):  
O. Ule ◽  
D. N. Ogbonna ◽  
R. N. Okparanma ◽  
R. R. Nrior

Aim: To assess the Mycoremediation potential of Mucor racemosus and Aspergillus niger in open field crude oil contaminated soils in Rivers State, Nigeria.  Study Design: The study employs experimental design, statistical analysis of the data and interpretation. Place and Duration of Study: Rivers State University demonstration farmland in Nkpolu-Oroworukwo, Mile 3 Diobu area of Port Harcourt, was used for this study. The piece of land is situated at Longitude 4°48’18.50” N and Latitude 6ᵒ58’39.12” E measuring 5.4864 m x 5.1816 m with a total area of 28.4283 square meter. Mycoremediation process monitoring lasted for 56 days, analyses were carried out weekly at 7 days’ interval. Methodology: Five (5) experimental plots were employed using a Randomized Block Design each having dimensions of 100 x 50 x 30 cm (Length x Breadth x Height) and were formed and mapped out on agricultural soil, each plot was contaminated with 22122.25g of Crude Oil except Control 1 and left fallow for 6 days after contamination for proper contamination and exposure to natural environmental factors to mimic crude oil spill site. On the seventh day bio-augmentation process commenced using two (2) fungal isolates namely Aspergillus niger [Asp] and Mucor rasemosus [Muc]). Two (2) control plots (P1: Uncontaminated and unamended soil - CTRL 1 US) and P2: Crude Oil contaminated but unamended soil - CTRL 2 CS); P3 = P5 were contaminated and amended/bioaugmented (P3: CS+Asp, P4: CS+Muc, P5: CS+Asp+Muc respectively. Soil profile before and after contamination was assayed while parameters like Temperature, pH, Nitrogen, Phosphorus, Potassium and Total Petroleum Hydrocarbon (TPH) contents were monitored throughout the experimental period. Microbial analyses such as Total Heterotrophic Bacteria (THB), Total Heterotrophic Fungi (THF), Hydrocarbon Utilizing Bacteria (HUB) and Hydrocarbon Utilizing Fungi (HUF) were recorded. Bioremediation efficiency was estimated from percentage (%) reduction of Total Petroleum Hydrocarbon (TPH) from day 1 to the residual hydrocarbon at day 56 of bio- augmentation/ biostimulation plots with the control. Results: Results revealed actual amount of remediated hydrocarbon and % Bioremediation Efficiency at 56 days in the different treatment plots (initial TPH contamination value of 8729.00mg/kg) in a decreasing order as follows: CS+Muc (8599.19mg/kg; 33.66%) > CS+Asp+Muc (8357.31mg/kg; 33.04%) > CS+Asp (8341.58mg/kg; 32.98%) > CTRL 2 -CS (Polluted soil without amendment) (81.06mg/kg; 0.32%). Microbiological results After fifty-six (56) days of bioremediation monitoring; %HUB were as follows; CS+Asp+Muc (45.30%) > CS+Asp (40.32%) > CS+Muc (35.01%) > CTRL 2 –CS (30.43%) > CTRL 1 – US (0%). These results indicate that the presence of the contaminated crude oil stimulated and sustained the growth of Hydrocarbon Utilizing Bacteria (HUB) in the contaminated plots (P2 - P3); more so, the higher growth in the enhanced bio-augmented plots (P3 – P5) shows the positive impact of fungal bio-augmentation in bioremediation of crude oil polluted soil. It was further observed that treatment plots with higher HUB or HUF had higher percentage (%) bioremediation efficiency; that is, the higher the sustained HUB and HUF population, the higher the %Bioremediation process. Hydrocarbon Utilizing Bacteria (Log10 CFU/g): CS+Asp (4.20) (Day 35) > CS+Muc+Asp (4.18) (Day 35) > CS+Muc (4.08) (Day 28) > CTRL 2 – CS (3.95) (Day 21) > CTRL 1 – US (3.78) (Day 35). (Fig. 3). Hydrocarbon Utilizing Fungi (Log10 CFU/g): CS+Asp (4.68) (Day 35) > CS+Muc+Asp (4.58) (Day 35) > CS+Muc (4.48) (Day 35) > CTRL 2 – CS (4.23) (Day 21) > CTRL 1 – US (2.85) (Day 42). Conclusion: Study showed that bioremediation of crude oil-contaminated soils with Bioaugmenting fungus singly may be more effective than combination with others depending on the type of substrate used, nature of the hydrocarbon utilizing organism and environmental conditions prevalent as seen in Mucor racemosus having higher bioremediation potential than when combined with Aspergillus niger. Notably, Hydrocarbon Utlilizing Bacteria (HUB) and Hydrocarbon Utilizing Fungi (HUF) which are the key players in Bioremediation has its peak count value on Day 35, this confers that nutrient renewal on bioremediation site should be at interval of 35 days for continuous effective bioremediation of hydrocarbon pollutants. It is therefore recommended that single microbes of high bioremediation potential could be used since its more effective than consortium of many hydrocarbon utilizing microbes. Also, nutrient or bio-augmenting microbes’ renewal on bioremediation site should be at an interval of 35 days for continuous effective bioremediation of hydrocarbon pollutants.


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.


2018 ◽  
Vol 2 (2) ◽  
pp. 35
Author(s):  
Prasetyo Handrianto

Exploitation and exploration activities will produce sewage sludge and crude oil spills that cause pollution to the environment and upgrading to the environment, biology and soil chemistry. Monitoring of oil pollution conditions on the soil can be done by detection of all hydrocarbon components, or what is called the total petroleum hydrocarbon (TPH). According to its components, this total petroleum hydrocarbon (TPH) can be classified into 3 points, aliphatic, alicyclic, and aromatic. One of the biological efforts that can be used to overcome petroleum pollution is by using bioremediation technology. There are several methods in bioremediation, one of which is the biostimulation method, where the growth of the original hydrocarbon decomposers is stimulated by adding nutrients, oxygen, pH optimization and temperature. Hydrocarbonoclastic microorganisms have characteristic not possessed by other microorganisms, namely their ability to excrete hydroxylase enzymes, which are hydrocarbon oxidizing enzymes, so that these bacteria can degrade petroleum hydrocarbons. Biodegradation can be formed if there is a structural transformation so that cahnges in molecular integrity occur. This process is a series of enzymatic or biochemical reaction that require ideal environmental conditions with the growth and proliferation of microorganisms. Something that need to be known before remediation are pollutants (organic or inorganic), degraded/ not, dangerous/ not, how many pollutants pollute the soil, the ratio of carbon (C), Nitrogen (N), and phophorus (P), soil type, soil conditions (wet dry), and how long pollutants have been deposited in these locations


Chemosphere ◽  
2019 ◽  
Vol 234 ◽  
pp. 864-874 ◽  
Author(s):  
Marie Thérèse Bidja Abena ◽  
Tongtong Li ◽  
Muhammad Naeem Shah ◽  
Weihong Zhong

2009 ◽  
Vol 52 (4) ◽  
pp. 1043-1055 ◽  
Author(s):  
Adriano Pinto Mariano ◽  
Sérgio Henrique Rezende Crivelaro ◽  
Dejanira de Franceschi de Angelis ◽  
Daniel Marcos Bonotto

This work investigated the possibility of using vinasse as an amendment in ex-situ bioremediation processes. Groundwater and soil samples were collected at petrol stations. The soil bioremediation was simulated in Bartha biometer flasks, used to measure the microbial CO2 production, during 48 days, where vinasse was added at a concentration of 33 mL.Kg-1of soil. Biodegradation efficiency was also measured by quantifying the total petroleum hydrocarbons (TPH) by gas chromatography. The groundwater bioremediation was carried out in laboratory experiments simulating aerated (bioreactors) and not aerated (BOD flasks) conditions. In both the cases, the concentration of vinasse was 5 % (v/v) and different physicochemical parameters were evaluated during 20 days. Although an increase in the soil fertility and microbial population were obtained with the vinasse, it demonstrated not to be adequate to enhance the bioremediation efficiency of diesel oil contaminated soils. The addition of the vinasse in the contaminated groundwaters had negative effects on the biodegradation of the hydrocarbons, since vinasse, as a labile carbon source, was preferentially consumed.


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