Bioremediation: An Eco-friendly Sustainable Technology for Environmental Management

Azubuike, Christopher Chibueze; Chikere, Chioma Blaise; Okpokwasili, G. C.

doi:10.1007/978-981-13-1891-7_2

Cited by 23 publications

(7 citation statements)

References 125 publications

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“…3,1 The technique relies heavily on the use of plant interactions in the contaminated site to mitigate the toxic effects of pollutants. 5 The complex chemical, physical and biological interactions that take place within the medium adjacent to plant roots allow for cleanup of contaminated sites through a number of phytoremediation mechanisms. 4,6 The phytoremediation mechanism most commonly employed for the treatment of heavy metalcontaminated soil involves the use of green plants to absorb, concentrate and precipitate contaminants from the soil into the above ground parts of the plant (phytoextraction).…”

Section: Researchmentioning

confidence: 99%

“…One of the major advantages of this remediation approach is that some precious metals can bioaccumulate in plants and be recovered after remediation, a process known as phytomining. 5 With ever increasing global metal contamination, plant remediation provides efficient, cost effective and ecologically sound approaches for sequestration and removal through leaves, stem and roots. 7 The success of the phytoextraction process, whereby pollutants are effectively removed from soil, is dependent on an adequate yield of plants and/or the efficient transfer of contaminants from the roots of the plants into their aerial parts.…”

Section: Researchmentioning

confidence: 99%

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Assessment of Lead (Pb) Remediation Potential of Senna obtusifolia in Dareta Village, Zamfara, Nigeria

Udiba

Antai

Akpan

2020

Journal of Health and Pollution

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Background. Environmental contamination by lead (Pb) and other toxic metals is of significant environmental and human health concern. Heavy metals are not readily eliminated by degradation, and thus remediation of contaminated media (soil, sediment and water/sludge) requires the outright removal or cleanup of these metals. Evaluation of the performance and cost efficiency of various remediation methods has led to the development of bioremediation as an inexpensive, innovative and environmentally friendly cleanup strategy. Objectives. The present study was designed to assess the Pb remediation potential of wild Senna obtusifolia (Sicklepod), in Dareta Village, Zamfara, Nigeria. Methods. Soil and Senna obtusifolia samples were collected from established plots and Pb content was determined using a Shimadzu atomic absorption spectrophotometer (model AA-6800, Japan) after wet digestion. Results. The mean concentrations of Pb (mg/kg) in soil, roots, stems and leaves, respectively, were 130.68±5.2, 61.33±17.86, 66.64±18.10 and 173.39±13.73 for plot 1, 287.84±6.5, 69.42±11.62, 123.4±3.67 and 294.28±4.38 for plot 2, 315.73±4.13, 68.42±10.22, 86.89±6.08 and 290.61±7.47 for plot 3, 396.86±5.48, 91.64±2.87, 150.58±2.21 and 282.53±5.69 for plot 4 and 264.23±8.02, 72.71±2.18, 124.60±2.27 and 282.40±3.79 for plot 5. Average values for the translocation factor, bioaccumulation factor and bioconcentration factor were 3.65±0.66, 1.01±0.23 and 0.29±0.10, respectively. Discussion. Soil Pb levels in the present study were found to be within the United States Environmental Protection Agency (USEPA) standards and the Dutch Intervention Values for Pb in soil. Lead content of Senna obtusifolia leaves was found to be higher than the Pb content of the stem and root, indicating relatively low restriction and the efficiency of internal transport of the toxic metal from the roots towards the aerial parts. High translocation and bioaccumulation factors indicate that the plant has vital characteristics for phytoextraction of Pb. The mean Pb concentration of Senna obtusifolia leaves was found to be far above Codex general standards and the European Union (EU) maximum levels for Pb in leafy vegetables. Conclusions. The study concludes that wild Senna obtusifolia has significant characteristics for phytoextraction of Pb and that consumption of Senna obtusifolia leaves from the study area would pose a serious risk of Pb intoxication. Competing Interests. The authors declare no competing financial interests.

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Section: Researchmentioning

confidence: 99%

Section: Researchmentioning

confidence: 99%

Assessment of Lead (Pb) Remediation Potential of Senna obtusifolia in Dareta Village, Zamfara, Nigeria

Udiba

Antai

Akpan

2020

Journal of Health and Pollution

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“…Surprisingly, microbial remediation is regarded as one of the most promising solutions for the reasonably priced restoration of places contaminated by crude oil. Due to genetic alterations, the native microbial communities exposed to petroleum hydrocarbons develop a tolerance and show increased rates of biodegradation (Azubuike et al, 2020). Given the intricate network of waterways and the magnitude of the areas affected by a spill, inadequate accessibility to contaminated sites presents a significant problem for the clean-up of these sites.…”

Section: Introductionmentioning

confidence: 99%

Mycoremediation of polyaromatic hydrocarbon contaminated anoxic ecosystem by <i>Trichoderma</i> species in synergy with <i>Bacillus</i> species

Akomah-Abadaike,

Onuoha,

Agi

2024

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Fungi-base remediation is a cheap, effective and ecofriendly procedure for the cleanup of crude oil contaminated ecosystem. The study investigated the reduction of lag in crude oil degradation by Trichoderma in synergy with Bacillus in biofilm mode Sediment samples were collected from Bodo Ogoni River State using random stratified method.at depth 0 – 15 cm and 15 – 30 cm. The experimental setup consists of consortium of 1 % and 50 % crude oil (bonny light) with Trichoderma inoculum alone and/or Trichoderma and Bacillus inoculum for sixty (60) days. Microbiological test, Biochemical test, Physiochemical test (pH, conductivity) salt (nitrate, phosphate, sulphate) metal (lead, nickel, chromium, vanadium, iron) and total petroleum hydrocarbon and polyaromatic hydrocarbon using Gas chromatography flame ionization detector. Trichoderma koningopsis strain (MT111912.1): accession no (ON564694) and Bacillus velezensis strain (ON287164.1) accession no. (ON584354) were molecularly identified. 1 % crude oil Trichoderma only setup recorded 33.3 % reduction of PAHs while Trichoderma and Bacillus 1 % crude oil setup recorded 78.8 %. The 50 % crude oil Trichoderma only setup recorded 57.5 % reduction of PAHs while Trichoderma and Bacillus 50 % crude oil setup recorded 90.8 %. For TPH 1 % crude oil Trichoderma only setup recorded 29.9 % reduction while Trichoderma and Bacillus recorded 71.9 %. The 50 % crude oil Trichoderma only setup recorded 49.2 % reduction of while Trichoderma and Bacillus 50 % crude oil setup recorded 85.8 %. The study revealed that Trichoderma species can degrade polyaromatic hydrocarbon and total petroleum hydrocarbon faster in synergy with Bacillus.

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“…In the bid to proffer lasting solution to this challenge, green bio-remediation options such as the use of microbes mined from different unique ecological niches are prospected for the recovery of these ecosystems [3,4 ]. As microbes with genes capable of performing specialized functions can be quarried from different environment, these functions include cellulose-degrading, bio-surfactant production, and hydrocarbon degradation.…”

Section: Introductionmentioning

confidence: 99%

Hydrocarbon solubilisation by oil and cellulose-degrading Chitinophaga terrae isolated from the rumen.

Udume¹,

Stanley²,

Abu³

2021

GSC Biol. and Pharm. Sci.

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This study investigated the capacity of cellulose and hydrocarbon degrading bacterium isolated from the rumen of a cow to solubilise hydrocarbon. The bacterium was isolated from the rumen fluid of cow and its capacity to degrade cellulose was screened on carboxyl methyl cellulose (CMC) agar plate and the ability to degrade crude oil was carried out using Bonny Light crude. Solubilisation of hydrocarbon was determined by carrying out emulsification index (E24) using kerosene. Other bio-surfactant characteristics such as blood haemolysis, tilted slide capacity and oil displacement were tested also. The bacterium was identified based on phenotypic, biochemical and molecular characteristics. The isolate achieved 48.17% degradation of total petroleum hydrocarbon (TPH) within 14 days with emulsification index of 54.5%. The isolate also produced clear zone on agar plate containing CMC as the sole carbon source. Phylogenetic tree analyses classified the bacterial isolate as Chitinophaga terrae. The sequences have been deposited to GenBank under the accession number KJ076216.1. This study has demonstrated that the novel strain of Chitinophaga terrae used in this study not only has the capacity for multiple substrate utilization, but also has the capacity to produce bio-surfactant. Considering that the isolate was obtain from the rumen of cow it shows that rumen content may harbour bacteria with diverse economical and ecologically-friendly product, which may be utilized for bioremediation of crude oil contaminated systems.

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Bioremediation: An Eco-friendly Sustainable Technology for Environmental Management

Cited by 23 publications

References 125 publications

Assessment of Lead (Pb) Remediation Potential of Senna obtusifolia in Dareta Village, Zamfara, Nigeria

Assessment of Lead (Pb) Remediation Potential of Senna obtusifolia in Dareta Village, Zamfara, Nigeria

Mycoremediation of polyaromatic hydrocarbon contaminated anoxic ecosystem by <i>Trichoderma</i> species in synergy with <i>Bacillus</i> species

Hydrocarbon solubilisation by oil and cellulose-degrading Chitinophaga terrae isolated from the rumen.

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