Sustained perchlorate degradation in an autotrophic, gas-phase, packed-bed bioreactor

Article Abstract:

Researchers from Pennsylvania State University demonstrated the microbiological degradation of perchlorate using a biofilm hydrogen-gas reactor.

Industrial Organic Chemicals, Cyclic Crude and Intermediate Manufacturing, Chlorinated Aromatics NEC, Chemical industry, Chlorocarbons, Aromatic compounds

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Probing bacterial electrosteric interactions using atomic force microscopy

Article Abstract:

Researchers from the Pennsylvnia State University investigated the effects of bacterial surface polymers on silicon nitride and negatively charged bacteria using atomic force microscopy.

Research and Testing Services, Scientific Research and Development Services, Plastic Materials, Plastics Material and Resin Manufacturing, Plastics materials and resins, Analytical Laboratory Instrument Manufacturing, Analytical instruments, Electron & Proton Microscopes, Research & Development-Universities, Instrument industry, Instrument industry (Equipment), Plastics industry, Plastics, Polymers, Silicon nitride, Silicon nitrides, University research

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Influence of fluid velocity and cell concentration on the transport of motile and nonmotile bacteria in porous media

Article Abstract:

A study investigated the effect of fluid velocity on the transport of motile and nonmotile bacteria in saturated soil columns using radiolabeled cells. Results reveal that filtratrion theory can not be applied for motile bacterial strain at low fluid velocities. There was a variation in cell retention seen in motile cells that contradicts colloid filtration theory, which states that an reducing the bulk fluid velocity in a porous medium increases the number of collisions of passive colloids with particles.

Research and Development in the Physical, Engineering, and Life Sciences, Pollution R&D NEC, Biological transport, Pollution control research, Porous materials, Bacterial motility

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