Sewage clarification system - combines aerobic and anaerobic treatment with efficient heat utilisation

摘要

In a combined aerobic and anaerobic sewage treatment system, the sludge undergoes an anaerobic an anaerobic process in a cont-roll energy producer, i.e. a digestion chamber. This is followed by a bioreactor in which a controlled rotting process humifies and sanitises the sludge. The bioreactor supplies the heat required for the anaerobic treatment. The treatment ensures an optimum energy recovery at lower operating costs and in a process free from smells. It provides a better recycling of waste into the cyclic biological process.