title: [Efficacy of ferrate oxidation and hydrolyze remnant activated sludge].
abstract: 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.
authors.affiliation: Energy and Environment Engineering Center, Harbin Institute of Technology, Harbin 150001, China. liwanghit@126.com
authors.forename: Li
authors.initials: L
authors.lastname: Wang
authors.forename: Jun
authors.initials: J
authors.lastname: Ma
authors.forename: Tian-Ze
authors.initials: TZ
authors.lastname: Liu
authors.forename: Chun-Mei
authors.initials: CM
authors.lastname: Li
authors.forename: Hong-Yuan
authors.initials: HY
authors.lastname: Zhang
mesh_terms: D003365:Costs and Cost Analysis; D006868:Hydrolysis; D007501:Iron / Q000737:chemistry*; D010084:Oxidation-Reduction; D012037:Refuse Disposal / Q000191:economics / Q000379:methods*; D012722:Sewage / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D012722:Sewage; C017311:ferrate ion; D007501:Iron