Team:Bielefeld-Germany/Sewage treatment plant

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

Primary treatment: mechanical stage

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