Aerobic sludge digestion under low dissolved oxygen concentrations.

  title={Aerobic sludge digestion under low dissolved oxygen concentrations.},
  author={Ravisankar Arunachalam and Hemant K Shah and L Ju},
  journal={Water environment research : a research publication of the Water Environment Federation},
  volume={76 5},
Low dissolved oxygen (DO) concentrations occur commonly in aerobic digesters treating thickened sludge, with benefits of smaller digester size, much reduced aeration cost, and higher digestion temperature (especially important for plants in colder areas). The effects of low DO concentrations on digestion kinetics were studied using the sludge from municipal wastewater treatment plants in Akron, Ohio, and Los Lunas, New Mexico. The experiments were conducted in both batch digestion and a mixed… CONTINUE READING

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