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Questions related from Paawan Kaur
Theoretically, half-life according to first order kinetic model, is independent of concentration, then how the application rate of pesticide in soil is correlated with DT50?
25 October 2019 374 3 View
Theoretically speaking, the dissipation reaction constant (k) and half-lives are independent with the concentrations. But the half-life of pesticides is usually correlated with their application...
24 October 2019 2,648 3 View
I want to know if non-linear Freundlich and Langmuir adsorption isotherm models can be applied for desorption study in order to evaluate the desorption capacity of adsorbents? Kindly attach...
26 September 2019 7,695 2 View
In some instances, adsorption data fits both to the Langmuir and Freundlich model. What could be the justification to this as langmuir states the monolayer adsorption whereas Freundlich implies...
16 August 2019 3,333 7 View
After the exploitation of adsorbents (adsorption of pesticides from water) how can they be safely disposed so as to prevent environmental problems.
29 July 2019 3,969 4 View
In water decontamination techniques using low cost agricultural waste absorbent, the problem of contamination remains existent since there is possibility of generation of waste products after the...
27 July 2019 1,498 10 View
After the thermal treatment of agricultural waste, the char obtained was analysed by XRD. A diffraction peak appears at 2thetha= 22degrees. How can it be concluded if it is silica or cellulose peak?
23 January 2019 2,092 3 View
Which technique can be used to measure the diameter of the organic molecule ?
22 January 2019 9,419 3 View
Different molecular weight chitosan were intercalated into bentonite to form a composite showing different structural characteristics. Is it possible that the composite having less surface area...
10 January 2019 8,929 10 View
For the adsorption of herbicide on adsorbents, the data shows fit to both Freundlich and Langmuir isotherm model. What inference can be drawn from this ?
10 January 2019 3,033 4 View
The fitting of adsorption data to Freundlich indicates heterogeneous adsorption where as Langmuir indicates homogeneous adsorption. What could be inferred if data fits well to both models? Is the...
06 November 2018 2,070 5 View
The best fit of pseudo first and second order sorption kinetic models is estimated with correlation coefficients and experimental-calculated Cs values. In the case of the classic PSOE and...
07 April 2018 9,551 10 View
In general, water solubility of pesticide increase with increase in temperature which would result in decrease of adsorption of pesticide on soil. Still some pesticides show increase in adsorption...
25 August 2017 7,877 7 View
Generally dissipation rate of herbicide increases with increase in soil moisture. But in some herbicide a decrease in dissipation rate has been reported as well. What could the possible reason for...
22 August 2017 1,791 3 View
Generally, the presence of microbes affects the microbial degradation potential of herbicide. How could flooding conditions affect the microbial population? Please cite references and thank you in...
15 June 2017 9,832 5 View
There are many sensitive techniques such as LC-MS/MS, GC-MS/MS available which have sensitivity of 1 to 3ng/g. However, the MRL's are about 10 to 50 times higher for respective herbicides and...
16 February 2017 4,785 4 View
