Removal of Cadmium by Microorganisms in a Two-Stage Chemostat

Removal of cadmium by microorganisms in a two-stage chemostat.

A two-stage chemostat was used to study removal of cadmium by microorganisms in continuous culture. The medium was contaminated with 0.8 mg of Cd per liter. At 20 degrees C, most of the microbial biomass formed aggregates which settled in the second stage of the chemostat. Effluent was free of bacteria. Up to 80% of the metal contained in the inlet flux was removed by the biomass, with 20% rema...

a cross-comparative dtudy between two textbook series in terms of the presentation of politeness

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Competition between Plasmid-bearing and Plasmid-free Microorganisms in a Chemostat with Distinct Removal Rates

In this paper we consider a competition model between plasmid-bearing and plasmid-free organisms in a chemostat that incorporates both general response functions and distinct removal rates. The model with identical removal rates was proposed in a paper of Stephanopoulis and Lapidus, and the analysis there was local. The complete global analysis of the model in the case of identical removal rate...

Removal of Acrylamide by Microorganisms

Cadmium Removal by Two Strains of Desmodesmus pleiomorphus Cells

The capacity of microalgae to accumulate heavy metals has been widely investigated for its potential applications in wastewater (bio)treatment. In this study, the ability of Desmodesmus pleiomorphus (strain L), a wild strain isolated from a polluted environment, to remove Cd from aqueous solutions was studied, by exposing its biomass to several Cd concentrations. Removal from solution reached a...