the research progress on preparation and modification of polyferric sulphate
abstract: polyferric sulphate, a kind of ferric-salt inorganic polymer flocculant,has good flocculation and adsorption. it was whdely used in drinking water,sanitary sewage and industrial wastewater treatments. in this paper,preparation methods and characteristics of PFS are summarized, and research status and development trend are introduced.
key words: polyferric sulphate; oxidant;catalyst;modification
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