By Ross E. McKinney

Compiling wisdom won via greater than 50 years of expertise in environmental engineering know-how, this booklet illustrates the appliance of basic suggestions in microbiology to supply a legitimate foundation for the layout and operation of assorted organic platforms utilized in fixing environmental demanding situations within the air, water, and soil. Environmental pollutants keep watch over Microbiology emphasizes the quantitative relationships of microbial progress and metabolism, starting an exam of the final metabolism and ensuing development of micro organism, fungi, algae, protozoa, rotifers, and different microorganisms and explains how micro organism lead to the stabilization of biodegradable natural pollution.

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Extra info for Environmental Pollution Control Microbiology: A Fifty-Year Perspective (Civil and Environmental Engineering)

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2 kJ/g N. A second group of aerobic bacteria can oxidize the nitrous acid to nitric acid, the most oxidized form of nitrogen, Equation 2-4. 1 kJ/g N. The second group of bacteria does not obtain as much energy as the first group of bacteria, but that does not diminish their importance. The bacteria that oxidize ammonia to nitric acid are known as nitrifying bacteria. The group of nitrifying bacteria that oxidize ammonia to nitrous acid are designated as the Nitroso- bacteria; and the group of nitrifying bacteria that oxidize the nitrous acid to nitric acid are designated as the Nitro- bacteria.

With acclimation bacteria can degrade many substituted Chapter 2 BACTERIA 35 organic compounds. The chemical structure of the organic compounds determines how easy or how difficult it is for the bacteria to metabolize the chemicals. Enzymes mediate bacteria metabolism. Enzymes have been called organic catalysts since they increase the rate of reaction without becoming a part of the final products. As already indicated, many different hydrolytic enzymes exist on the surface of bacteria to break complex organic compounds into simple organic compounds for complete metabolism.

The percentages of organic 26 ENVIRONMENTAL POLLUTION CONTROL MICROBIOLOGY matter and inorganic matter depend upon the chemical characteristics of the media in which the bacteria are grown. Media that contain high concentrations of inorganic salts will produce bacteria with higher concentrations of inorganic compounds in the cell mass than media containing low concentrations of inorganic compounds. This relationship is very important in environmental microbiology since the mineral content of water varies widely.

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