Efficacy of Ferrate Oxidation and Hydrolyze Remnant Activated Sludge
高铁酸盐对剩余活性污泥的氧化水解效能

Using ferrate oxidized remnant activated sludge base on that ferrate hold strong oxidation capability. The results showed that: ferrate could destroy activated sludgy structure, when initial activated sludge concentrations was 12 600 mg x L(-1), m (Fe)/m (SS) = 0.40 microg/mg. Ferrate made activated sludge floccules desegregations with increase of ferrate concentration the MLVSS went down. With different ferrate was put in, the different concentration activated sludge had different dissolving characteristic; the much higher initial concentration that activated sludge had, the much more SCOD, NH4(+) -N, TP was released. When activated sludge was 12 600 mg x L(-1), ferrate was m(Fe)/m(SS) = 0.40 microg/mg,the activated sludge released the maximum concentration SCOD, NH:(4+)-N, TP. The liquid from sludge hydrolyze was treatment with waste water. The cost of sludge treatment is just 0.25 yuan/t that is lower than the sludge traditional treatment.