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Three laboratory-scale, upflow anaerobic reactors were operated for about 250 d to determine the effect of activated granular sludge with high density of sulfate reducing bacteria in the treatment of artificial acid mine drainage. Sulfate reducing bacteria in the granular sludge taken from the upflow anaerobic sludge blanket reactor were 1–2×106 c.f.u. g−1, which is at least 10 times higher than that...
Chlorinated guaiacols (4,5,6-trichloro-, 4,5-dichloro-, and 4-chloro-guaiacol) at 0.2 mM were completely degraded by anaerobic digester sludge within 4 d, but complete removal of TeCG could not be attained. The removal rates of chlorinated guaiacols by adsorption and biodegradation were in the following order: 4,5-dichloroguaiacol > 4-chloroguaiacol = 4,5,6-trichloroguaiacol > tetrachloroguaiacol...
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