Modeling chlorine inactivation requirements of Cryptosporidium parvum oocysts
Article Abstract:
An analysis of the inactivation of Cryptosporidium parvum oocysts has ably demonstrated that either free or combined residual chlorination is effective in substantially inactivating C. parvum. It was also shown that the disinfectants must be used at CTs much higher than those required for Giardia muris if substantial inactivation is to be achieved. Data, however, do not show the differences in cysticidal efficacy between free chlorine at pH6 and at pH8, or between free chlorine and preformed chloramines. Data also failed to show that the overall Ct required for disinfection is reduced by using a sequence of free chlorine followed by combined chlorine.
Publication Name: Journal of Environmental Engineering
Subject: Environmental issues
ISSN: 0733-9372
Year: 1998
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Optimal locations of monitoring stations in water distribution system
Article Abstract:
US law requires that water be tested to maintain safety. The most efficient way to perform water sampling, is to acquire samples from nodes whose flow comes from the most number of neighboring nodes. This is the same as sampling from all the nodes since flow has come from all directions. Using network analysis and integer programming, the node with maximum flow can be determined and monitoring stations located.
Publication Name: Journal of Environmental Engineering
Subject: Environmental issues
ISSN: 0733-9372
Year: 1992
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