Aerobic degradation of technical hexachlorocyclohexane by a defined microbial consortium

Murthy, H.M. Rajashekara; Manonmani, H. K.

doi:10.1016/j.jhazmat.2007.03.053

Cited by 109 publications

(40 citation statements)

References 27 publications

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“…At low pH levels, there was decrease in the microbial population. The degradation was observed to take place over a wide range of pH from 4.0 to 8.0 (Murthy and Manonmani, 2007). Degradation was found to decrease at pH 9.0.…”

Section: Discussionmentioning

confidence: 94%

“…The optimized conditions obtained in our previous study (Murthy and Manonmani, 2007) were adopted in this present study to find out the applicability. The optimized parameters used were: inoculum level 500 μg protein g -1 soil, pH 7.5 and incubation temperature 30 0 C. The soil used was red soil with no history of HCH applications.…”

Section: Resultsmentioning

confidence: 99%

“…Microbial degradation of all the HCH-isomers has since been observed under oxic conditions both in soil (Bachmann et al, 1988 b); Doelman et al, 1985;Sahu et al, 1993) and in pure cultures of microorganisms Thomas et al, 1996). We have isolated in our laboratory a microbial consortium consisting of ten bacterial isolates which have got the capacity to degrade HCH (Manonmani et al, 2000;Murthy and Manonmani, 2007) under oxic conditions. Translation of the laboratory scale trials to small plots and actual open fields was studied in soil The defined microbial consortium used in the degradation of tech-HCH was developed by the long-term enrichment of the contaminated soil and sewage samples.…”

Section: Discussionmentioning

confidence: 99%

“…Growth of the consortium was determined by estimating total protein in the biomass by modified method of Lowry et al according to Murthy et al (2007). Cells were harvested from a suitable quantity of culture broth, washed with minimal medium, suspended in 3.4 mL distilled water and 0.6 mL of 20% NaOH.…”

Section: Growthmentioning

confidence: 99%

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Bioremediation of Hexachlorocyclohexane Contaminated Soil: Field Trials

Manonmani¹

2011

Pesticides in the Modern World - Pesticides Use and Management

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Section: Discussionmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Growthmentioning

confidence: 99%

See 2 more Smart Citations

Bioremediation of Hexachlorocyclohexane Contaminated Soil: Field Trials

Manonmani¹

2011

Pesticides in the Modern World - Pesticides Use and Management

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“…The identifi cation of two copies of linA in B90A was initially thought to be accidental. However, while looking for separate functions for linA1 and linA2 it turned out that these genes preferentially act on the two enantiomeric forms [57]. This became possibly the fi rst example to demonstrate enantiomer specifi c evolution of genes.…”

Section: Evolution Of Lin Genes To Perform Newer Function In B90amentioning

confidence: 99%

Pseudomonas sp. to Sphingobium indicum: a journey of microbial degradation and bioremediation of Hexachlorocyclohexane

et al. 2008

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The unusual process of production of hexachlorocyclohexane (HCH) and extensive use of technical HCH and lindane has created a very serious problem of HCH contamination. While the use of technical HCH and lindane has been banned all over the world, India still continues producing lindane. Bacteria, especially Sphingomonads have been isolated that can degrade HCH isomers. Among all the bacterial strains isolated so far, Sphingobium indicum B90A that was isolated form HCH treated rhizosphere soil appears to have a better potential for HCH degradation. This conclusion is based on studies on the organization of lin genes and degradation ability of B90A. This strain perhaps can be used for HCH decontamination through bioaugmentation.

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Removal of Thiram from Aqueous Solutions

Zahoor

2010

J Chinese Chemical Soc

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In this study activated carbon was used for the removal of thiram from aqueous solutions. Adsorption experiments were carried out as a function of time, initial thiram concentration and temperature. Equilibrium data fitted well to the Freundlich and Langmuir equilibrium models in the studied concentration range. Adsorption kinetics followed a pseudo second‐order kinetic model rather than pseudo first‐order model. The results from kinetic experiments were used to describe the adsorption mechanism. Both boundary layer and intraparticle diffusion played important role in the adsorption mechanism of thiram. Thermodynamic parameters (ΔG0, ΔH0, and ΔS0) were determined and the adsorption process was found to be an endothermic one. The negative values of ΔG0 at different temperatures were indicative of the spontaneity of the adsorption process.

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Aerobic degradation of technical hexachlorocyclohexane by a defined microbial consortium

Cited by 109 publications

References 27 publications

Bioremediation of Hexachlorocyclohexane Contaminated Soil: Field Trials

Bioremediation of Hexachlorocyclohexane Contaminated Soil: Field Trials

Pseudomonas sp. to Sphingobium indicum: a journey of microbial degradation and bioremediation of Hexachlorocyclohexane

Removal of Thiram from Aqueous Solutions

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