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Content with label bacteria in REBEL WP8: Biotechnology (See content from all spaces)
Related Labels: sample, table, chemical-methods, biodegradation, wastewater-treatment, biotechnology, phosphor, anaerobic, decomposition, sedimentation-basin, sewage-treatment-plants, decontamination, parameter, figure, oxygen-consumption, composition, sedimentation, nitrification, testing, more »

Page: 1 P incorporation in biomass
P compounds are vitally important for bacteria rebwp8:Bacteria to build their physical body (empirical value BOD5 rebwp8:BOD5 : N : P = 100 : 5 : 1). As the phosphate content in domestic waste water is however higher, only approx. 3040 ...
Other labels: biomass, figure, narrative-text, phosphor, biotechnology, wastewater-treatment, waste-water
Page: 2 Biological purification
early as the 19th century, waste water specialists learned about natural selfpurification processes from nature. In biological purification, dissolved and fine suspended material, as well as colloids (which do not sediment out by themselves), are converted into sedimentable material rebwp8 ...
Other labels: narrative-text, biological-methods, biotechnology, sewage-treatment-plants, sedimentation, wastewater-treatment, waste-water
Page: 2 Nitrification
During nitrification, oxidation of the ammonium into nitrate takes place by various autotrophic microorganisms (nitrifiers) and is carried out in the activation basin. The nitrifying bacteria use CO{}2 for building cells and reduced organic N compounds as an energy source. The maximally ...
Other labels: table, narrative-text, biological-methods, biotechnology, nitrogen, sewage-treatment-plants, nitrification, wastewater-treatment
Page: 3 Denitrification
Aerobic rebwp8:Oxygen content nitrification rebwp8:2 Nitrification is followed by denitrification in an anoxic rebwp8:Oxygen content basin (no dissolved O{}2, nitrate acts as the O{}2 source). Here, NO{}3{}\ is reduced by heterotrophic Cdegrading bacteria ...
Other labels: sedimentation-basin, table, narrative-text, biotechnology, nitrogen, sewage-treatment-plants, nitrification, denitrification
Page: Activated sludge method with membrane technology
membrane technique works with­out addition of chem­icals, energy consumption is relatively low, hand­­­ling is simple and the plants can be easily adapt­ed to different requirements. Membrane filtrat­ion can be used as an alternative to flocculation, sed ...
Other labels: figure, narrative-text, biological-methods, biotechnology, sewage-treatment-plants, activated-sludge, wastewater-treatment, waste-water
Page: Bacteria
Bacteria are singlecelled organisms without a nucleus and usually round or rodshaped. They reproduce by cell division (under the best conditions (sufficient food, optimal temp.) very quickly (2040 min.), in waste water purification several h to d). Individual cells ...
Other labels: figure, narrative-text, biotechnology, sewage-treatment-plants, activated-sludge, wastewater-treatment, waste-water
Page: Chemical stabilisation
takes place by addition of lime (pH>10), as a result of which the bacteria rebwp8:Bacteria present in the sludge are inactivated. This type of stabilisation is usually just a temporary solution
Other labels: narrative-text, stabilization, chemical-methods, biotechnology, sewage-treatment-plants, wastewater-treatment, waste-water
Page: Composition of the waste water
must be possible for the contaminants present to be used as food by the bacteria rebwp8:Bacteria . With some products of the chemical industry this is not always the case. Certain basic nutrients and trace elements must be present in the waste water in order to allow bacterial growth rebwp8:Bacteria ...
Other labels: parameter, composition, narrative-text, biological-methods, biotechnology, sewage-treatment-plants, wastewater-treatment, waste-water
Page: Decontamination
Waste water is not just a contaminant but also a risk to health. A range of diseases are spread via water among other things. Not only bacteria rebwp8:Bacteria , but also worm eggs and viruses can be contained in the waste water. Only some of these pathogens ...
Other labels: narrative-text, biotechnology, contamination, decontamination, sludge, wastewater-treatment, waste-water
Page: History
Water is used for drinking, cleaning, transport and as a solvent. It is physically, chemically and biologically changed by enrichment with foreign substances and becomes waste water. The more varied the origin and composition of its pollutants (for example, industrial waste water, domestic waste water from ...
Other labels: water, contaminant, narrative-text, biotechnology, wastewater-treatment, waste-water
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