The influence of sludge age on heavy metal removal in the activated sludge process

@inproceedings{Sterritt1981TheIO,
  title={The influence of sludge age on heavy metal removal in the activated sludge process},
  author={Robert M. Sterritt and John Norman Lester},
  year={1981}
}
Abstract In a laboratory simulation of the activated sludge process ten heavy metals were added continuously to the system which was allowed to equilibrate at six sludge ages between 3 and 18d. Cobalt, manganese and molybdenum removals were poor and were unaffected by changes in the sludge age. The highest removal efficiencies for the other metals occurred at the 15d sludge age. Chromium (trivalent) and cadmium had the highest removal efficiencies, typically greater than 50%. The behaviour of… CONTINUE READING