Exploring the Potentials of Nipa Palm (Nypa fruticans) Ash and Rabbit Droppings for Enhanced Ex situ Bioremediation of Crude Oil Contaminated Soil

Solomon, Leera; Ogugbue, Chimezie Jason; Mbakwem-Aniebo, C.

doi:10.9734/ajb2t/2018/39947

Cited by 5 publications

(7 citation statements)

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“…These results corroborated the findings of Solomon et al (2018), who reported nipa palm ash enhancement capacity in soil and plants.…”

Section: Effects Of Biochar Application On Okra Growth Parameterssupporting

confidence: 92%

The effectiveness of various biochar types in enhancing the phytoremediation of soils polluted with petroleum hydrocarbon

Umoren,

Mijinyawa,

Sridhar

et al. 2024

J. Plant Nutr. Soil Sci.

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BackgroundBiochar can enhance phytoremediation in petroleum hydrocarbon polluted soils, making it an intriguing soil amendment option for remediating polluted soil. Biochar can improve the fertility of depleted soils through a range of mechanisms. This study can contribute valuable insights into the origin of biochar and enhance our understanding of the efficacy of different biochar types in remediating petroleum hydrocarbon polluted soils.AimsTo assess the efficacy of different biochar types and plant growth in remediating petroleum hydrocarbon polluted soils.MethodsA field experiment was conducted at the automobile workshop (commonly called mechanic village) from July to October 2021, using a randomized complete block design. The land was sectioned into designated plots with three replicates. Maize stalk biochar (MSB) and nipa palm biochar (NPB) were treated differently in each plot at a rate of 20 t ha−1. Plots containing no biochar were used as controls. Initial and final soil analyses were conducted.ResultsPreliminary soil assessments revealed higher values of soil bulk density (1.51 g cm−3), moisture content (35.02%), organic carbon (41.01 g kg−1), cation exchange capacity (13.27 cmol kg−1), total petroleum hydrocarbon content (PHCt) (775.83 mg kg−1), cadmium (Cd) (5.41 mg kg−1), chromium (Cr) (25 mg kg−1), lead (Pb) (33.51 mg kg−1), and zinc (Zn) (0.91 mg kg−1) in the polluted soil than in the unpolluted counterpart. The polluted soil displayed lower hydraulic conductivity (Ks) (1.17 cm h−1), available phosphorus (69.46 mg kg−1), manganese (Mn) (6.38 mg kg−1) and iron (Fe) (4.18 mg kg−1) contents than the unpolluted soil. The PHCt, Cd, and Cr were significantly decreased following the application of biochar. NPB recorded the lowest petroleum hydrocarbon (19%), lead (37%), manganese (57%), and zinc (69%) contents, whereas MSB had the lowest cadmium (50%) and chromium (27%) contents when compared with the control. Between heavy metal accumulations in the leaves and fruits, a greater accumulation of Cd, Cr, and Pb was found in the leaves, whereas Ni accumulation was found in the fruits. The highest Cd (47.0 mg kg−1) and Ni (8.3 mg kg−1) accumulations in the leaves were recorded in NPB treated plots. Similarly, Cd (5.3 mg kg−1), Cr (3.7 mg kg−1), Pb (21.6 mg kg−1), and Ni (23.4 mg kg−1) accumulation in the fruits recorded the highest values in the NPB treated plots. The NPB plants were the tallest compared with the other treatments. In addition, NPB plants had the widest leaf area compared with other treatments.ConclusionThe results indicated that the amendment of NPB may be suitable for the phytoremediation of soils polluted with petroleum hydrocarbons.

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“…These results corroborated the findings of Solomon et al (2018), who reported nipa palm ash enhancement capacity in soil and plants.…”

Section: Effects Of Biochar Application On Okra Growth Parameterssupporting

confidence: 92%

The effectiveness of various biochar types in enhancing the phytoremediation of soils polluted with petroleum hydrocarbon

Umoren,

Mijinyawa,

Sridhar

et al. 2024

J. Plant Nutr. Soil Sci.

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“…Organic manures have been reported as potential biostimulants that aided bacterial growth and metabolism of residual crude oil in soil environment [34,52]. Hydrocarbon degradative process is widely distributed among numerous bacterial genera and biodegradation of hydrocarbons using bacteria has been established [53,54,55].…”

Section: Resultsmentioning

confidence: 99%

Influence of Biostimulation Treatment Using Composted Plant Biomass on Bacterial Diversity of an Aged Petroleum Contaminated Soil as Determined by Culture-dependent and 16S rRNA Gene PCR-DGGE Based Identification Methods

Solomon¹,

Ogugbue

Okpokwasili

2018

SAJRM

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Influence of biostimulation treatment using composted plant biomass on bacterial diversity of an aged crude oil contaminated soil (ACOCS) was determined using culture-dependent and 16S rRNA gene PCR-DGGE based identification methods. Seven treatment plots were designed and included treatments A (TPA) through G (TPG). Samples were collected bi-weekly from 7 treatment plots designed in situ during a 70-day study period that spanned 10 weeks. Composted (2,500 g each) Water hyacinth (EC), Mexican sunflower (TD) and Bermuda grass (CD) were used as nutrient supplements in 4,000 g of ACOCS in situ. TPA was un-amended while TPB, TPC, and TPD had EC, TD and CD added singly. TPE had EC and TD while TPF contained EC and CD in combination. TPG consisted of EC, TD and CD combined. Bacterial isolates were obtained on mineral salts medium and identified based on their morphological and biochemical characteristics. DGGE fingerprints of PCR-amplified 16S rRNA bacterial gene fragments were also determined using the universal primer set: 7F: 5’-GAGTTTGATCCTGGCTCAG-3’ and 1492R:5’-GGTTACCTTGTTACGACT-3’that corresponded to positions 968 and 1401 of Escherichia coli 16S rRNA gene sequence. DGGE bands fell into corresponding operational taxonomic units based on a threshold of 91-100% sequence similarity. Dendrogram showed dominant DGGE bands in TPB though TPG over time with TPA having no band. The isolates are known crude oil utilizers and are closely related to Gordonia sp. BS261404 with 98% sequence similarity, Aquitalea magnusonii KG26145 (96%), Sphingobacterium sp. K1261411 (97%) and Achromobacter sp. HQ261417 (100%). Data indicated that pseudomonads are the dominant bacteria involved in hydrocarbon biodegradation after biostimulation with the composted plant materials. Cultural and molecular methods of cultivation of microorganisms are neither contradictory nor excluding and should be considered as complementary to interrogate the bacterial diversity in the natural soil environment.

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“…It applies to all biological, chemical, and physical processes that are influenced by plants that aid the cleanup of contaminated media. Plants materials aid degradation of organic pollutants directly or indirectly by supporting microbial growth [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Post Remediation Assessment of Residual Hydrocarbons in Contaminated Soil in Ogoni Using Gas Chromatographic Fingerprinting Technique and Phytotoxicity Bioassay

Solomon¹,

Ogugbue²,

Okpokwasili³

2018

J Pet Environ Biotechnol

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Post-remediation assessment of residual total petroleum hydrocarbon (TPH) in an aged crude oil-contaminated soil (ACOCS) in Ogoni after seventy-day enhanced remediation by bio stimulation was investigated using gas chromatographic fingerprinting (GCF) technique and phytotoxicity bioassay. Seven treatments were designed and composted water hyacinth (EC), Mexican sunflower (TD) and Bermuda grass (CD) was applied as bio stimulants. Composted EC, TD or CD (2,500 g) was incorporated singly and in various combinations into 4,000g of ACOCS in situ. Soil treatments consisted of TPA (un-amended), TPB (amended with EC), TPC (amended with TD), and TPD (amended with CD). Others include TPE (amended with EC and TD), TPF (amended with EC and CD) and TPG (amended with EC, TD and CD). There was significant (ρ >0.05) reduction in total petroleum hydrocarbon (TPH) in TPG from 93,867 to 1,002 ppm when compared to TPA which had TPH reduced from 98,673 to 79,583ppm. Gas chromatographic fingerprints of ACOCS before treatment indicated absence of n-alkanes within n-C 2 to n-C 8 region which was attributed to weathering processes. However, after treatment with the substrates, carbon lengths n-C 9 to n-C 34 were significantly (ρ >0.05) attenuated while those from n-C 35 to n-C 45 showed a decreasing tendency for enhanced attenuation thus, signifying their possible immobilization in particle pores. Seed germination index was ≥ 65%, indicating that the remediated soil is non-phytotoxic and could support plant growth.

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Exploring the Potentials of Nipa Palm (Nypa fruticans) Ash and Rabbit Droppings for Enhanced Ex situ Bioremediation of Crude Oil Contaminated Soil

Cited by 5 publications

References 0 publications

The effectiveness of various biochar types in enhancing the phytoremediation of soils polluted with petroleum hydrocarbon

The effectiveness of various biochar types in enhancing the phytoremediation of soils polluted with petroleum hydrocarbon

Influence of Biostimulation Treatment Using Composted Plant Biomass on Bacterial Diversity of an Aged Petroleum Contaminated Soil as Determined by Culture-dependent and 16S rRNA Gene PCR-DGGE Based Identification Methods

Post Remediation Assessment of Residual Hydrocarbons in Contaminated Soil in Ogoni Using Gas Chromatographic Fingerprinting Technique and Phytotoxicity Bioassay

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