The present work discusses a systematic approach to model grinding parameters of coal in a ball mill. A three level Box-Behnken design combined with response surface methodology using second order model was applied to the experiments done according to the model requirement.
Imidacloprid is an insecticide of systemic nature that
exhibits
an adverse impact on several non-target organisms. In the present
study, potential bacteria have been isolated and used for biodegradation
of imidacloprid in batch studies and stirred tank reactor. The optimum
process condition for degradation has been found to be at pH 7, a
temperature of 35 °C, and a shaking speed of 150 rpm. Maximum
degradation of 78% has been achieved by the bacterial consortium in
the batch study, while, in the reactor, it increases to 90%. Kinetics
analysis suggests that the Teisser model best fits the experimental
data, with a correlation coefficient (R
2) of 0.98. Ecotoxicological assessment using luminescent bacteria
reveals 40% and 90% inhibition in luminescence in the case of untreated
sample upon exposure for 30 min and 24 h, respectively, while the
values obtained in the case of treated samples are 9% and 29%, respectively.
Cytotoxicity assessment indicates 60% reduction in cell proliferation
in untreated samples and <10% cell proliferation inhibition in
treated samples, indicating a considerable decrease in toxicity post-bacterial
treatment.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.