An innovative enzymatic polycondensation of dicarboxylic acids and dialcohols in aqueous polymerization media using free immobilized lipases was developed. Various parameters (type lipases, temperature, pH, stirring type rate, monomer carbon chain length) the an oil-in-water (o/w) miniemulsion (>80% water) were evaluated. The best results for achieved with equimolar concentration (0.5 M) oct...

Selecting a subset of samples to label from a large pool of unlabeled data points, such that a sufficiently accurate classifier is obtained using a reasonably small training set is a challenging, yet critical problem. Challenging, since solving this problem includes cumbersome combinatorial computations, and critical, due to the fact that labeling is an expensive and time-consuming task, hence ...

Continuous-flow and batch experiments were conducted using a column reactor system containing Hanford Aquifer material in order to assess the potential of in situ bioremediation of carbon tetrachloride (CT) at the Hanford site in southcentral Washington state. Benzoate and acetate were evaluated as primary substrates both in the presence and absence of nitrate as a potential electron acceptor. ...

This study presents the adsorption capability of a filter composed sand coated with cobalt nanomaterials (CoNM) for extraction manganese ions from aqueous media. The was performed in both batch and dynamic modes order to evaluate capabilities free-standing CoNM CoNM-coated sand. Langmuir Freundlich isotherm models were applied batch-mode. model estimated maximum capacity 17.86 mg/g correspondin...