Results of our trials demonstrate that the alternating aerobic/anaerobic activated sludge (AAA-CMAS) system is capable of producing effluent of high quality in either fully-loaded or under-loaded conditions. The aeration energy saving and the sludge reduction of the AAA-CMAS system was shown to be of the order of 30% and 15% respectively. Because denitrification process is taking place within the reactor under controlled conditions and not in the sedimentation tank where degree of denitrification cannot be controlled, effluent of the AAA-CMAS system was found to contain much less suspended solids and E. coli counts than that of the conventional system, resulting in further cost saving in chlorination and in back-washing of the filter.
Effect of Alternating Aerobic and Anaerobic Conditions on the Economics of the Activated Sludge System
S. Y. Ip, J. S. Bridger, N. F. Mills; Effect of Alternating Aerobic and Anaerobic Conditions on the Economics of the Activated Sludge System. Water Sci Technol 1 May 1987; 19 (5-6): 911–918. doi: https://doi.org/10.2166/wst.1987.0269
Download citation file:
Impact Factor 1.915
CiteScore 3.3 • Q2
First Decision in 30 days