Improved Energy Recovery by Anaerobic Grey Water Sludge Treatment with Black Water
AbstractThis study presents the potential of combining anaerobic grey water sludge treatment with black water in an up-flow anaerobic sludge blanket (UASB) reactor to improve energy recovery within source-separated sanitation concepts. Black water and the mixture of black water and grey water sludge were compared in terms of biochemical methane potential (BMP), UASB reactor performance, chemical oxygen demand (COD) mass balance and methanization. Grey water sludge treatment with black water increased the energy recovery by 23% in the UASB reactor compared to black water treatment. The increase in the energy recovery can cover the increased heat demand of the UASB reactor and the electricity demand of the grey water bioflocculation system with a surplus of 0.7 kWh/cap/y electricity and 14 MJ/cap/y heat. However, grey water sludge introduced more heavy metals in the excess sludge of the UASB reactor and might therefore hinder its soil application.
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Tervahauta, T.; Bryant, I.M.; Leal, L.H.; Buisman, C.J.N.; Zeeman, G. Improved Energy Recovery by Anaerobic Grey Water Sludge Treatment with Black Water. Water 2014, 6, 2436-2448.
Tervahauta T, Bryant IM, Leal LH, Buisman CJN, Zeeman G. Improved Energy Recovery by Anaerobic Grey Water Sludge Treatment with Black Water. Water. 2014; 6(8):2436-2448.Chicago/Turabian Style
Tervahauta, Taina; Bryant, Isaac M.; Leal, Lucía H.; Buisman, Cees J.N.; Zeeman, Grietje. 2014. "Improved Energy Recovery by Anaerobic Grey Water Sludge Treatment with Black Water." Water 6, no. 8: 2436-2448.