Remediation of Contaminated Sites

Dadrasnia, Arezoo; Shahsavari, Nasser; Emenike, C. U.

doi:10.5772/51591

Cited by 12 publications

(7 citation statements)

References 59 publications

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“…The bioremediation process is broadly categorized into ex situ remediation and in situ bioremediation, based on the origin, transportation, and removal of pollutants from contaminated sites (Soccol et al, 2003;Dadrasnia et al, 2013;Azubuike et al, 2016).…”

Section: Types Of Bioremediationmentioning

confidence: 99%

Impact of Agriculture on Environment and Bioremediation Techniques for Improvisation of Contaminated Site

Nayak¹,

Solanki²

2022

IABCD

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Sustainable development requires the progress and preferment of environmental management and a persistent exploration and improvement for green technologies to treat a wide range of habitats contaminated by disorganized anthropogenic activities. Bioremediation is an excellent and effective cleaning technique to remove toxic waste from contaminated environment. Bioremediation is vastly involved in degradation, eradication, immobilization, or detoxification of diverse chemical wastes and physical hazardous materials from the surrounding through the all-embracing with the help of microorganisms and plants. Bioremediation technique is widely used to treat wastewater and to remove agricultural chemicals (pesticides and fertilizers) that leach from soil into groundwater. Certain toxic metals, such as mercury, selenium and arsenic compounds, can also be removed from water by bioremediation. Thus, bioremediation is a research and solution oriented technology that needs a prior thorough understanding of different types of available processes for improvisation and clean-up of contaminated sites. In this review, impact agricultural pollution, principle of bioremediation process and, different types of in-situ and ex-situ bioremediation techniques have been discussed.

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Section: Types Of Bioremediationmentioning

confidence: 99%

Impact of Agriculture on Environment and Bioremediation Techniques for Improvisation of Contaminated Site

Nayak¹,

Solanki²

2022

IABCD

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“…Prema mehanizmu djelovanja na onečišćujuće tvari, tehnike fitoremedijacije dijele se na fitoekstrakciju, fitofiltraciju, fitostabilizaciju, fitovolatizaciju, fitorazgradnju i rizorazgradnju (slika 1). 1,21 Fitoekstrakcija, poznata još kao fitoakumulacija i fitoapsorpcija, odnosi se na unos onečišćujućih tvari iz tla ili voda korijenskim sustavom, prijenos u vaskularna tkiva te akumulaciju u biljnim izbojcima. Tim putem saniraju se tla onečišćena teškim metalima.…”

Section: Mehanizmi Fitoremedijacijeunclassified

Fitoremedijacija – pregled stanja i perspektiva

Milčić¹,

Blažević²,

Domanovac³

2019

Kem. ind. (Online)

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Remedijacija tala onečišćenih kompleksnim mješavinama organskih tvari i teških metala jedan je od najvećih izazova obnavljanja okoliša. Fitoremedijacija je naziv za skup postupaka koji upotrebljavaju biljke, njihove enzime i prisutne mikroorganizme iz zone korijenja za izolaciju, transport, detoksikaciju i mineralizaciju ksenobiotika, čime se smanjuje njihova koncentracija, pokretljivost ili toksični učinci. Fitoekstrakcija, fitostabilizacija, fitovolatizacija, fitorazgradnja i rizorazgradnja imaju velik potencijal za nedestruktivnu remedijaciju tala, što pokazuju brojna istraživanja u laboratorijskom mjerilu. Kako bi fitoremedijacija postala pouzdana tehnologija za širok spektar primjena u većem mjerilu, potrebno je ulagati resurse u nova istraživanja s ciljem boljeg razumijevanja procesa u cjelini, posebice na genetičkoj i biokemijskoj razini.

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“…One of the most beneficial methods of counteracting the effects of soil contamination is biological remediation [23,27], with its three major types: natural bioremediation, biostimulation, and bioaugmentation. The first method relies on natural (intrinsic) biodegradation processes carried out by native (autochthonous) microorganisms, the second involves stimulating the growth and activity of the native population of microorganisms by providing them with additional sources of nutrients, oxygen and/or other electron acceptors to accelerate contaminant decomposition, while the third consists of introducing indigenous/extraneous/genetically modified microorganisms into the environment (soil-water system) [10,28].…”

Section: Introductionmentioning

confidence: 99%

“…Bioremediation, which uses the existing community of microorganisms is often the most cost-effective clean-up method available. Indeed, in most cases native microbial activity may be sufficient to adequately clean up contaminated soil [27]. Soil microorganisms are capable to transform oil hydrocarbons to less-(biotransformation), non-(complete biodegradation) toxic compounds, or eventually mineralize them into simple inorganic substances such as carbon dioxide and water [27,29].…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, in most cases native microbial activity may be sufficient to adequately clean up contaminated soil [27]. Soil microorganisms are capable to transform oil hydrocarbons to less-(biotransformation), non-(complete biodegradation) toxic compounds, or eventually mineralize them into simple inorganic substances such as carbon dioxide and water [27,29]. Intrinsic biodegradation plays an important role in soil self-decontamination often referred to as natural attenuation (NA).…”

Section: Introductionmentioning

confidence: 99%

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Ecotoxicity and bioremediation potential assessment of soil from oil refinery station area

Zawierucha

Malina

Herman

et al. 2022

J Environ Health Sci Engineer

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Purpose The aim of the present study was to evaluate the toxicity and biodegradation potential of oil hydrocarbons contaminated soil samples obtained from different depths at an oil refinery station area. An approach involving chemical, microbiological, respirometry and ecotoxicity assessment of soil polluted by oil hydrocarbons was adopted, in order to determine the biodegradability of pollutants and ecotoxicological effects of natural attenuation strategy. Methods The ecotoxicity of soil samples was evaluated using an ostracod test kit and a seed germination test. The results of the phytotoxicity assay were expressed as a percentage of seedling emergence and as the relative yield of fresh and dry biomass compared to control plants. The intrinsic biodegradation potential of the contaminated soil was examined using a Micro-Oxymax respirometer. Intrinsic biodegradation rates were estimated from the slopes of linear regressions curves plotted for cumulative O2 uptake. The obtained values were then entered in the mass balance equation for the stoichiometric reaction of hydrocarbon decomposition and converted per kg of soil per day. Results Although the tested contaminants were biodegradable in the respirometric assay, they were slightly to moderately toxic to plants and extremely toxic to ostracods. The noxious effects raised with the increased concentration of contaminants. The monocotyledonous oat was more tolerant to higher concentrations of oil hydrocarbons than the other test plants, indicating its greater suitability for soil reclamation purposes. Conclusion By assessing phytotoxicity and effect on ostracod mortality and progress of soil self-decontamination process, proper approach of reclamation of demoted area can be provided.

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Remediation of Contaminated Sites

Cited by 12 publications

References 59 publications

Impact of Agriculture on Environment and Bioremediation Techniques for Improvisation of Contaminated Site

Impact of Agriculture on Environment and Bioremediation Techniques for Improvisation of Contaminated Site

Fitoremedijacija – pregled stanja i perspektiva

Ecotoxicity and bioremediation potential assessment of soil from oil refinery station area

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