Team:Bielefeld-Germany/Sewage treatment plant
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=== Primary treatment: mechanical stage === | === Primary treatment: mechanical stage === | ||
- | [File:Bielefeld2012_Stage1.jpg|250px|thumb|left| Mechanical stage of the sewage treatment plant ''Obere Lutter'' with 1: Rake, 2: Intake pumping station, 3: Grit chamber, 4: Primary clarifier] | + | []File:Bielefeld2012_Stage1.jpg|250px|thumb|left| Mechanical stage of the sewage treatment plant ''Obere Lutter'' with 1: Rake, 2: Intake pumping station, 3: Grit chamber, 4: Primary clarifier. Picture is generously provided by the water and sewage board [http://www.obere-lutter.de ''Obere Lutter''.]]] |
=== Secondary treatment: first biological stage === | === Secondary treatment: first biological stage === |
Revision as of 11:51, 26 September 2012
Contents |
Introduction
Sewage is generated every day by everyone. Therefore efficient sewage treatment is absolutely necessary to guarantee the quality of surface water, ground water and of course of drinking water. However sewage is often heterogeneous and consists of liquids from toilets, kitchen, sinks as well as liquids from industrial processes and commercial use. Sewage treatment plants have to consist of various treatment stages. The general composition of a large-scale treatment plant is shown in the flow diagram in picture 1.
Functional principle
Schematic
The large-scale sewage treatment plant “Obere Lutter” is located near Gütersloh and is equipped with three sewage stages. The different stages will be explained in the following section.
Primary treatment: mechanical stage
[]File:Bielefeld2012_Stage1.jpg|250px|thumb|left| Mechanical stage of the sewage treatment plant Obere Lutter with 1: Rake, 2: Intake pumping station, 3: Grit chamber, 4: Primary clarifier. Picture is generously provided by the water and sewage board Obere Lutter.]]
Secondary treatment: first biological stage
Secondary treatment: second biological stage
Tertiary treament: fourth purification stage
The new innovation: Immobilized Laccases
Expert evaluation
Sewage treatment plant: Schloß Holte-Stukenbrock
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