Download Environmental Biotechnology: Principles and Applications by Bruce E. Rittmann PDF

By Bruce E. Rittmann

In "Environmental Biotechnology-Principles and Applications", the authors attach the various varied features of environmental biotechnology. The booklet develops the fundamental options and quantitative instruments within the first six chapters, which contain the rules. The textual content constantly calls upon these ideas because it describes the functions in Chapters 7 via sixteen. The subject matter is that each one microbiological methods behave in ways in which are comprehensible, predictable, and unified. even as, each one software has its personal targeted beneficial properties that has to be understood. The distinct good points don't overturn or steer clear of the typical ideas. as an alternative, they supplement the foundations and are such a lot profitably understood in mild of the rules.

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Images created by Shirley Owens . 29 30 CHAPTER 1 • BASICS OF MICROBIOLOGY Euglenophyta Euglenophyta represent a rather small group of single-celled al­ gae that are motile by means of flagella and live in freshwaters. The group name is derived from one of its most common members, Euglena, which is frequently a dominant organism in stabilization ponds. Euglena has a characteristic red spot or stigma that appears to act as a photoreceptor so that the organism can swim toward the surface of the water when in need of sunlight, or away from the surface when the sunlight is too intense.

Fungi generally grow slower than bacteria, but they generally can tolerate extreme environmental conditions better. They can live in relatively dry climates, as they can obtain water from the air, as well as from the medium on which they grow. Molds can survive in dry climates that are inhibitory to vegetative bacteria. Under extremely dry conditions, fungi also can produce protective spores. Molds can grow on concentrated sugars with high osmotic pressure, and they can live under relatively acidic conditions that would be detrimental to most bacteria.

2 percent, respectively, although such low contents are frequently observed more under laboratory rather than field conditions. In general, they have a relatively high protein content, which suggests their use as food for humans and animals. They generally are not too tasty, but may be eaten by animals if mixed with other more palatable food. The concentration of either nitrogen or phosphorus is often limiting to the growth of algae in natural waters, although there are circumstances where carbon, iron, or some other element may be in more limited supply.

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