Decentralised treatment of concentrated sewage at low temperature in a two-step anaerobic system: two upflow-hybrid septic tanks.

@article{Elmitwalli2003DecentralisedTO,
  title={Decentralised treatment of concentrated sewage at low temperature in a two-step anaerobic system: two upflow-hybrid septic tanks.},
  author={Tarek A Elmitwalli and Sameh Sayed and L. Groendijk and Jules B van Lier and Grietje Zeeman and Gatze Lettinga},
  journal={Water science and technology : a journal of the International Association on Water Pollution Research},
  year={2003},
  volume={48 6},
  pages={219-26}
}
The decentralised treatment of concentrated sewage (about 3,600 mgCOD/l) at low temperature was investigated in a two-step anaerobic system: two-anaerobic hybrid (AH) septic tanks (each 0.575 m3). The two reactors were placed in a temperature controlled-room and the HRT was 2.5 days for each reactor. The system was fed with concentrated domestic sewage, mainly black water from about 40 toilets flushed with only 4 litre of water and a limited amount of grey water. The system showed high removal… CONTINUE READING

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