Bioaccumulation of Zinc from Industrial Effluent by Pseudomonas stutzeri RS34

Bhagat, Renu; Srivastava, Sheela

doi:10.1007/978-94-017-1435-8_15

Cited by 2 publications

(2 citation statements)

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“…The above observations can be explained on the basis of toxicity of Zn 2+ to the microorganism, reduction of Zn 2+ and increase in conductivity on the similar way as described for Cr 6+ addition. The Zn 2+ removal capacity of Micrococcus species and Pseudomonas stutzeri has also been reported .…”

Section: Resultsmentioning

confidence: 96%

“…Metal reducing bacteria such as Micrococcus species , Pseudomonas stutzeri etc., can reduce Cr 6+ , Fe 3+ , Zn 2+ , etc. to their lower oxidation states, which exit predominantly as charged hydrated ions at neutral solution pH as a result can improve the conductivity of the solution. However, since the charge of the hydrated metal species differs, the extent of increase in conductivity also varies with the change in metal type and concentration.…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous generation of electricity and removal of organic load from synthetic wastewater in a membrane less microbial fuel cell: Parametric evaluation

Shankar

Mondal

Chand

2014

Env Prog and Sustain Energy

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This work deals with the simultaneous generation of electricity and removal of organic load from synthetic wastewater containing eqimolar concentration of glucose and glutamic acid. The effect of initial COD (mg/L), anodic pH and metals (Zn 21 , Cr 61, and Fe 31) concentration on the generation of current density and voltage has been studied. Although, the amount of COD removed increases with increase in the initial COD value from 500 to 2500 mg/L, the maximum generation of current density (19 mA/m 2 ) and voltage (14.8 mV), after 7 days of operation, is achieved at the initial COD value of 1500 mg/L at anodic pH value of 7. Difference in the anodic and cathodic pH has also been observed maximum ($1) at the initial COD value of 1500 mg/L. Addition of metals initially increases the voltage and power density generation, attains a maximum value at a certain metal concentration and decreases thereafter with increase in metal concentration. Optimum concentration of metals, that is, 8 mg/L Zn 21 , 7 mg/L Cr 61 , and 10 mg/L Fe 31 in the solution produces maximum voltage of 142, 490, and 321 mV, after 7 days of operation, respectively. Corresponding maximum power densities are 6.9, 508, and 192 mW/m 2 , respectively. The present process seems to have maximum current density and voltage generation capacity in comparison to some recently reported literatures on membrane less MFCand is able to reduce COD value below permissible limit with the initial COD value 1250 mg/L.

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Section: Resultsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%