| http://www.w3.org/ns/prov#value | - Appropriate sludge conditioning results in: (a) a sufficiently high pH in the reaction zone (near neutral to slightly alkalinic) so that hydrogen sulfide is substantially dissociated into nonvolatile ions; and, (b) a low content of volatile fatty acids and other odorous compounds in the mixed liquor, so that the gases leaving the anaerobic reactor are composed mainly of nonodorous methane and carb
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