Study of the hydrodynamic parameters in an internal flat-plate airlift reactor for the increased degradation of newspaper by .

The aim of our study was to characterize the hydrodynamics and mass transfer in a novel internal flat-plate airlift cylindrical reactor to increase the biodegradation of newspaper. We evaluated the degradation kinetics of newspaper in a batch culture with . Gas holdup, mixing time, the Reynolds number, and volumetric mass transfer coefficient () properties were characterized in biphasic and triphasic systems in order to optimize their operational conditions.

Experimental validation off-line a nonlinear controller for removal of chromium using non-living cells of .

The removal of hexavalent chromium [Cr (VI)] using non-living cells of was investigated. Batch and continuous studies on removal of Cr (VI) achieved 97% and 99% removal from aqueous phase, respectively. The specific uptake values at pH of 2 in batch process were 40.

A novel kinetic model for a cocoa waste fermentation to ethanol reaction and its experimental validation.

A non-segregated kinetic model is proposed to describe a fermentation process of agro-industrial residues derived cocoa (mucilage juice) by . The novel proposed hybrid model is based on a multiple coupling reaction mechanisms (structured) to describe the kinetics of substrate consumption, biomass, carbon dioxide, and ethanol, coupled to an unstructured model for the activity enzyme. The parameters of the kinetic model are estimated by non-linear least-squares curve fitting using the Marquardt-Levenberg algorithm.

Experimental and kinetic study for lead removal via photosynthetic consortia using genetic algorithms to parameter estimation.

This work presents an experimental-theoretical strategy for a batch process for lead removal by photosynthetic consortium, conformed by algae and bacteria. Photosynthetic consortium, isolated from a treatment plant wastewater of Tecamac (Mexico), was used as inoculum in bubble column photobioreactors. The consortium was used to evaluate the kinetics of lead removal at different initial concentrations of metal (15, 30, 40, 50, and 60 mgL), carried out in batch culture with a hydraulic residence time of 14 days using Bold's Basal mineral medium.