Physical/Chemical Treatment of Organically Contaminated Soils and Sediments

Fox, Robert

doi:10.1080/10473289.1996.10467473

Cited by 39 publications

(9 citation statements)

References 10 publications

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“…Several physical, chemical, and biotechnological remediation techniques (Figure 2) show great promise in attenuating the negative effects of polluted sediment loads [198,199]. Costeffective and technically feasible in-situ and ex-situ remediation techniques are available for successful contaminated sediment management [200].…”

Section: Mitigation and Remediation Strategiesmentioning

confidence: 99%

Streambed pollution: A comprehensive review of its sources, eco-hydro-geo-chemical impacts, assessment, and mitigation strategies

Mohanavelu¹,

Shrivastava²,

Naganna³

2021

Preprint

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Streambeds are among the important components of stream ecosystems and support several critical ecosystem services such as transformation of organic matter and nutrients and provide habitat for aquatic organisms. Increasing anthropogenic influence introduces multiple stressors to the stream networks resulting in pollution of streambeds, which in turn, could have detrimental effects on overall stream ecosystem health. However, there are gaps in the current understanding of the impacts of streambed pollution and the mitigation strategies lack holistic approach. In this review, we first present a global inventory to highlight the status of streambed pollution around the globe. Next, we synthesize the state-of-art knowledge of conventional and emerging forms of contaminants, their overall impacts on stream ecosystem functions, and finally present future directions to comprehend the problem of streambed pollution. We highlight that fine sediments and plastics (found especially in urban streambeds) are among the major physical pollutants of streambed pollution and the chemical pollutants generally comprise of hydrophobic compounds including various legacy contaminants such as polychlorinated biphenyl (PCB), dichlorodiphenyltrichloroethane (DDT), a wide range of pesticides and a variety of heavy metals. Further, in recent years, highly polar and hydrophilic emerging contaminants such as micro-plastics, pharmaceutical waste and personal care products have been identified in rivers around the world. We stress that the impacts of streambed pollution have been largely studied with discipline-driven perspectives amongst which the ecological impacts have received a lot of attention in the past. To present a comprehensive outlook, this review also synthesizes the hydrological, geomorphological and biochemical impacts of different forms of streambed pollutants. In the end, we endorse the positive and negative aspects of the current impact assessment methodologies and also highlight various physical, chemical and biological remediation measures that could be applied to alleviate streambed pollution.

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Section: Mitigation and Remediation Strategiesmentioning

confidence: 99%

Streambed pollution: A comprehensive review of its sources, eco-hydro-geo-chemical impacts, assessment, and mitigation strategies

Mohanavelu¹,

Shrivastava²,

Naganna³

2021

Preprint

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“…The mill became the cause of blinding of filter bags, fouling of fan blades, and other problems. Different approaches have been utilized in the past for removing oil from mill scale included solvent extraction using a non-aqueous solvent in which the hydrocarbon oils were soluble or a hydrocarbon solvent, kiln processes which oxidized and vaporized the oil, thereby decreasing their content on the mill scale, and large concentrations of detergents and surfactants which were utilized for removing oil from the mill scale [11]. None of these techniques have been flourishing in commercial operation.…”

Section: Background Of the Studymentioning

confidence: 99%

Economical and Environmental Friendly Methods for Separation of Oil from Mill Scale

Ms¹,

Shoukat²,

Hsu³

2019

Preprint

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Mill scale is the by-product of iron and steel industry. It can be recycled via sinter plant or solid as sinter feed materials. 85 to 90% of the constituent particles are more than 0.008 inches. The iron content is near around 70 %, with a very small amount of alkaline compounds and non-ferrous metals. Mill scale is polluted and contaminated with lubricants, oils and greases from the equipment. In this experiment for recovering of oil from mill scale, it is treated with three different methods. Then all methods were compared according to the ability of oil elimination and iron recovered. After washing and boiling with surfactants, large amount of polluted waste water becomes a problem for environment so this wastewater was utilized for making of Microbial Fuel Cells (MFCs), production of electricity in MFC depends on the biodegradation of organic materials, so different waste were added in wastewater for making MFC. The remaining of MFC was converted in bioethanol, biodiesel and biofertilizer. So this research is economical and environmentally friendly and fulfilled the important aspect of green environment with zero waste. It will be a mile stone in the research of metallurgy, environmental engineering, recycling technology and zero waste management.

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“…Remediation of soil is necessary due to the adverse effects of hydrocarbons on ecosystems. Various physical, chemical, and biological methods have been developed for soil remediation [1]. In bioremediation, naturally occurring microorganisms are applied to degrade oil contaminants.…”

Section: Introductionmentioning

confidence: 99%

Bioremediation of Oil Contaminated Soils by Washing under Static Conditions (Research Note)

Kharaji

Fazaelipoor

2019

IJEE

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In this research five different solutions were used to wash an oil contaminated soil with the initial TPH (Total Petroleum Hydrocarbon) content of 46 g kg-1 (grams of TPH per kg of dry soil). The solutions were a basal mineral medium (solution I), the basal mineral medium inoculated with petroleum degrading microorganisms (solution II), the basal mineral medium inoculated with a culture of petroleum degrading microorganisms and supplemented with a commercial washing powder (solution III), the basal mineral medium inoculated with the microorganisms and supplemented with Tween 80 (solution IV), and the basal mineral medium inoculated with the microorganisms and supplemented with sucrose (Solution V). Washing was performed by saturation of the soil with the solutions in columns and intermittent mixing. Solutions IV and V performed better than the others, giving more than 90% TPH removal in two months. In a separate experiment TPH removal was monitored as a function of time during washing. Solution V reduced the TPH content of the soil more rapidly than the others, with more than 70% TPH removal in 28 days. Addition of sand particles to the soil for the purpose of better mixing resulted in marginal positive effects.

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Physical/Chemical Treatment of Organically Contaminated Soils and Sediments

Cited by 39 publications

References 10 publications

Streambed pollution: A comprehensive review of its sources, eco-hydro-geo-chemical impacts, assessment, and mitigation strategies

Streambed pollution: A comprehensive review of its sources, eco-hydro-geo-chemical impacts, assessment, and mitigation strategies

Economical and Environmental Friendly Methods for Separation of Oil from Mill Scale

Bioremediation of Oil Contaminated Soils by Washing under Static Conditions (Research Note)

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