sewage treatment in bytom
Transcription
sewage treatment in bytom
SEWAGE TREATMENT IN BYTOM Households in Bytom get running water from special water reservoir (Goczalkowice Lake) in the region. During our work on the project, we were also interested in what happens with sewage in our town. We visited a sewage treatment plant in Bytom. It is the biggest treatment plant in the city and was modernised (thanks to EU funds) in 2004. It treats household waste from several districts in Bytom. It treats waste from about 200 000 households. THE PROCESS OF WATER TREATMENT Through a system of underground pipes, waste from houses is carried to a sewage treatment plant. The waste is first cleaned in a mechanical way to get rid of bigger pieces of rubbish carried with waste water. Then, the waste goes to reactors where it is cleaned in a biological way. There, the waste gets rid of nitrogen and phosophorus and undergoes some other clarification processes. What comes out, is clean water (but not drinking water), which is pumped into a local river. In this way, the quality of water in the river is improved. Sediment (mud) that is removed from water in the clarification processes is used to produce fertilizers and biogas. Biogas is, in turn, used to produce electricity and to heat the buildings of the sewage treatment plant in winter.