Alternative indicators for monitoring Cryptosporidium oocysts in reclaimed water.

摘要: With the widespread use of reclaimed water all over world, there is a clear need to optimise its management in order guarantee safety. Model microorganisms (with either indicator or index function) are commonly used assess risks related presence enteric pathogens water. Samples from five reclamation plants located Northeastern Spain were analysed validate three model (Escherichia coli, somatic coliphages and spores sulphite-reducing clostridia) as surrogates Cryptosporidium total infectious oocysts (TOO IOO, respectively) Probability plots, simple multiple linear regression discriminant analyses performed their relationships. Results show that detection E. coli alone not useful behaviour concentrations Cryptosporidium. However, showed high rate correctly classified samples (91.9%) when data together predict presence/absence IOO. Spores clostridia (SRC) parallel reduction patterns correlation values (r = 0.76) with reductions TOO. Furthermore, SRC TOO 0.85). Therefore, at treatment studied, can be considered have good functions for From point view health protection, (which mandatory current Spanish regulations) would satisfy improved management.