Simultaneous E. coli inactivation and NOM degradation in river water via photo-Fenton process at natural pH in solar CPC reactor. A new way for enhancing solar disinfection of natural water.
Bacteria inactivation and natural organic matter oxidation in river water was simultaneously conducted via photo-Fenton reaction at "natural" pH ( approximately 6.5) containing 0.6 mg L(-1) of Fe(3+) and 10 mg L(-1) of H(2)O(2). The experiments were carried out by using a solar compound parabolic collector on river water previously filtered by a slow sand filtration system and voluntarily spiked with Escherichia coli. Fifty five percent of 5.3 mg L(-1) of dissolved organic carbon was mineralized whereas total disinfection was observed without re-growth after 24h in the dark.
Moncayo-Lasso
Alejandro
A
Universidad del Valle, Cali, Colombia.
Sanabria
Janeth
J
Pulgarin
César
C
Benítez
Norberto
N
D004203:Disinfection / Q000379:methods*; D004926:Escherichia coli / Q000528:radiation effects*; D005290:Ferric Compounds / Q000737:chemistry; D005618:Fresh Water / Q000382:microbiology*; D006861:Hydrogen Peroxide / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D009930:Organic Chemicals / Q000378:metabolism*; D013472:Sunlight; D018508:Water Purification / Q000379:methods*
D005290:Ferric Compounds; D009930:Organic Chemicals; D006861:Hydrogen Peroxide