Polyaluminum chloride as the coagulant niinku TSV aikoo käyttää.
An inorganic polymer ‘PAC’ (polyaluminium
chloride) is the most widely used coagulant in water
treatment (Van Benchosten and Edzwald, 1990; Boisvert et al.,
1997; Najm et al., 1998; Okuda, et al., 1999, 2001).
Though aluminium-based coagulants are frequently used in
water treatment there are fears that aluminium (the major component
of PAC and alum) may induce Alzheimer’s disease (Crapper et al.,
1973; Miller et al., 1984; Martyn, et al., 1989) and that they exhibit
strong carcinogenic properties (Dearfield et al., 1964; McCollister
et al., 1964; Mallevialle et al., 1984). Some domestic tap waters
may contain aluminium in relatively high concentrations because
aluminium has been added as a flocculant during the purification
process (DWAF, 1996). The implication of this may be serious
since aluminium ions have been demonstrated to be toxic especially
in individuals with impaired renal function (Savory and Wills,
1991).
An inorganic polymer ‘PAC’ (polyaluminium
chloride) is the most widely used coagulant in water
treatment (Van Benchosten and Edzwald, 1990; Boisvert et al.,
1997; Najm et al., 1998; Okuda, et al., 1999, 2001).
Though aluminium-based coagulants are frequently used in
water treatment there are fears that aluminium (the major component
of PAC and alum) may induce Alzheimer’s disease (Crapper et al.,
1973; Miller et al., 1984; Martyn, et al., 1989) and that they exhibit
strong carcinogenic properties (Dearfield et al., 1964; McCollister
et al., 1964; Mallevialle et al., 1984). Some domestic tap waters
may contain aluminium in relatively high concentrations because
aluminium has been added as a flocculant during the purification
process (DWAF, 1996). The implication of this may be serious
since aluminium ions have been demonstrated to be toxic especially
in individuals with impaired renal function (Savory and Wills,
1991).
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