Nutrients microbial processing

It may also be possible to stimulate bioreductions in soils, such as Cr(VI) to Cr(III), more effectively by growing plants than by adding bacteria or nutrients to stimulate the microbial process. 

Some variables such as temperature, pH, nutrient medium, and redox potential are favorable to certain organisms while discouraging the growth of others. The major characteristics of microbial processes that contrast with those of ordinary chemical processing include the following [1] ... 

G. E. Jeimeman and J. B. Clark. Utilization of phosphite salts as nutrients for subterranean microbial processes. Patent US 5327967,1994. 

Microbial processes in terms of sludge (biomass) production, BOD and nutrient removal have been focused on when dealing with biological wastewater treatment. Therefore, and because the sewer is the system for input to the wastewater treatment plant, there is a basis as well as a perspective to establish a process concept for the sewer that can be integrated with the activated sludge processes. 

Cultivation of Auxotrophic Mutant Microbial processes that use an auxotrophic mutant require control of the concentration of a required nutrient. 

In a recent study, Sattler et al. (2001) examined cloud water collected at high altitudes (3.1km) on Mt. Sonnblick, Austria. They found that bacteria in cloud droplets were actively growing and reproducing at temperatures at or below 0°C. They concluded that temperature, nutrients, and energy sources are unlikely to limit microbial processes in cloud droplets, at least at lower... 

Carlton R. G. and Klug M. J. (1990) Spatial and temporal variations in microbial processes in aquatic sediments implications for the nutrient status of lakes. In Sediments Chemistry and Toxicity of In-place Pollutants (eds. R. Baudo, J. Giesy, and H. Muntau). Lewis Publishers, Ann Arbor, MI, pp. 107-127. 

The escape of natural gas from the gas distribution networks also exerts a considerable effect on physical, chemical and biological processes in the soil. The extent of the gas zone depends greatly on the rate of its escape, depth of the groundwater level, type of pipeline, the nature and moisture of the soil, treatment of its surface, etc. The composition of the gaseous phase in the soil is affected by the microbiological oxidation of methane. The rate of this depends on the soil temperature, presence of oxygen and the content of nutrients. At low temperatures, this microbial process is restricted, which also restricts the anaerobic zone. 

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