Disinfection of water

Mamane H (2008) Impact of particles on UV disinfection of water and wastewater effluents a review. Rev Chem Eng 24 67-157... [Pg.125]

Pure Ti02 was recently reported to be active in the disinfection of water contaminated by spores of the type Fusarium solani [142], Bacillus anthracis [143], or Cryptosporidium parvum oocysts [144], or when supported as nanocomposites on zeolite H(i for E. coli deactivation [145], and it found applications in water treatment as a replacement for chlorine. Ag-Ti02 immobilized systems were used for inactivation of bacteria, coupling the visible light response of the system and the strong bactericidal effect of Ag [146]. Silver was deposited on hydroxyapatite to form nanocomposites with a high capacity for bacterial adsorption and inactivation [147], or used for airborne bacterial remediation in indoor air [148],... [Pg.107]

Rincon, A.G., and Pulgarin, C. (2006) Comparative evaluation of Fe3 + and Ti02 photoassisted processes in solar photocatalytic disinfection of water. Applied Catalysis B Environmental,... [Pg.130]

In addition, brominated derivatives of alkylphenols (BrNPnEO and BrNPnEC) can be formed during chlorine disinfection of water if... [Pg.429]

The fate of dissolved amines during disinfection of water by chlorination was determined by membrane injection MS. Aliphatic amines undergo TV-chlorination to exhaustion of the N-H atoms by one of the tentatively proposed paths shown in reaction 28. Aromatic amines undergo mainly ring substitution however, the possible intervention of N-C1 intermediates is not excluded. At pH 10.6 aniline chlorination is much slower than that of n-butylamine383. [Pg.1107]

Studies of the combined process involving ultrasound and ozone have shown faster degradation rates for a range of chemical contaminants than either method applied alone. Sonolytic ozonation has also been found effective for the disinfection of water but in these cases sonication also has a number of direct effects on the bacteria and viruses (see above). [Pg.141]

Anderson AC, Reimers RS, DeKemion P. 1982. A brief review of the current status of alternatives to chlorine disinfection of water. Am J Public Health 72(11) 1290-1293. [Pg.128]

Ultrasonic atomization applied to the removal of endocrine disrupting compounds (EDCs) from an aquatic environment Sono-sorption as a new technique for removing lead ions from an aqueous solution UV disinfection of water... [Pg.443]

Disinfection of water is used to destroy bacteria. However, RO membranes are sensitive to oxidizers so they must be removed before entering the membranes. Active-carbon beds are sometimes used to remove traces of organic matter together... [Pg.236]

Patermarakis, G. and Fountoukides, E. (1990) Disinfection of water by electrochemical treatment,... [Pg.202]

Solar Disinfection of Water by Ti(>2 Photoassisted Processes Physicochemical, Biological, and Engineering Aspects... [Pg.443]

Solar Disinfection of Water by Ti02 Photoassisted Processes... [Pg.445]

As with chemical disinfection, the performance of UV irradiation systems (especially with 254-nm lamps) is determined by the disinfectant UV dose. In the case of solar disinfection of water, dose can then be calculated from the average solar UV intensity and the residence time in the irradiated part of the reactor dose = / x tr, where dose is the solar UV dose (Whm-2), I is the average intensity (W m-2), and t is the residence time (h). Note that only the UV part of the solar spectra is taken into account. [Pg.465]

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