Factors limiting bioremediation technologies

Boopathy, Raj

doi:10.1016/s0960-8524(99)00144-3

Cited by 838 publications

(378 citation statements)

References 2 publications

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“…The high activities of dehydrogenase, catalase, protease, phosphatase showed that it was far more likely that DBP was acting as a substrate and increasing microbial biomass, which in turn increased the activities of these enzymes. Soil enzyme could behave differently when exposure to different pollutants, such as heavy metals, pesticides and PAHs (Song and Bartha, 1990;Boopathy, 2000). Some researchers found that pesticides such as fenamiphos could also stimulate dehydrogenase (Megharaj et al, 1999), and naphthalene and phenanthrene had positive effects on protease and urease (Margesin et al, 2000a).…”

Section: Enzyme Activitymentioning

confidence: 99%

Enzymatic activities in constructed wetlands and di-n-butyl phthalate (DBP) biodegradation

Zhou

Cheng

et al. 2005

Soil Biology and Biochemistry

113

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Section: Enzyme Activitymentioning

confidence: 99%

Enzymatic activities in constructed wetlands and di-n-butyl phthalate (DBP) biodegradation

Zhou

Cheng

et al. 2005

Soil Biology and Biochemistry

113

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“…Temperature is one of the chief factors affecting degradation rates of many pollutants; typically every 10°C increase in temperature doubles the degradation rate (Alexander, 1999;Boopathy, 2000). The high yearly average soil temperatures in tropical regions makes implementation of in-situ soil bioremediation particularly interesting, especially in contaminated areas of little economic value where remediation would not be implemented with more expensive methods.…”

Section: Introductionmentioning

confidence: 99%

Organic by-products for sustainable soil remediation -the effect of 3 different amendments on the degradation of diesel fuel in a tropical ultisol

Haller

Jönsson

2017

Eco-Tech

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In many tropical developing countries, economic incentives are small for soil remediation to take place. Such locations demand special strategies that are energy-efficient, locally adapted and economic. In situ technologies are appealing where energy and material costs are more limiting than the time factor. One potentially sustainable and economic way to enhance the self-organizing capacity of soil ecosystems is by applications of locally available organic byproducts to stimulate the polluted ecosystem´s inherent capacity to heal by utilising the embodied energy of the organic pollutant itself, as an energy source for the necessary biochemical transformations. Tropical climate is favourable for biodegradation but many tropical soils are rich in clay which can inhibit the bioavailability of the pollutant and reduce biodegradation kinetics. A pilot scale experiment was performed in order to assess the capability of three amendments based on by-products; whey, pyroligneous acid and compost tea, to enhance degradation of diesel in ultisol. Biweekly applications of 6 mL whey kg -1 soil significantly increased the degradation rate but no positive effect on degradation was found of any of the other amendments.

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“…worldwide who are exploring the possibility of addressing the adverse effects of metal pollution by developing simple and comprehensive treatment models [14] employing microbes as work horses to reconstruct the environmental damage posed by heavy metal accumulation. By considering the advantages of understanding native microbial species to design effective biological tool [15,16].…”

Section: Introductionmentioning

confidence: 99%

Practiced Gram negative bacteria from dyeing industry effluents snub metal toxicity to survive

2017

J App Biol Biotech

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Isolation and characterization of metal-tolerant bacteria from dyeing industry effluent was the prime drive of the present investigation. Results yielded during screening and isolation, noted the dominance of bacteria verses fungi; in addition, metal tolerance ability of six out of twenty five bacterial isolates were observed. The six selected isolates were gram's negative, and were identified as Stenotrophomonas maltophilia UOMGNS116, Pseudomonas sp. UOMGNS216, Pseudomonas stutzeri UOMGNS316, Pseudomonas stutzeri UOMGNS416, Citrobacter freundii UOMGNS516 and Achromobacter sp. UOMGNS616 by 16s rDNA analysis. This investigation also evidenced the varied resistance capabilities by Achromobacter sp. UOMGNS616 and Citrobacter freundii UOMGNS516 against chromium and lead by overproduction of external polysaccharides especially against lead.

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Factors limiting bioremediation technologies

Cited by 838 publications

References 2 publications

Enzymatic activities in constructed wetlands and di-n-butyl phthalate (DBP) biodegradation

Enzymatic activities in constructed wetlands and di-n-butyl phthalate (DBP) biodegradation

Organic by-products for sustainable soil remediation -the effect of 3 different amendments on the degradation of diesel fuel in a tropical ultisol

Practiced Gram negative bacteria from dyeing industry effluents snub metal toxicity to survive

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