The application of potassium ferrate for sewage treatment.
The comparative performance of potassium ferrate(VI), ferric sulphate and aluminium sulphate for the removal of turbidity, chemical oxygen demand (COD), colour (as Vis400-abs) and bacteria in sewage treatment was evaluated. For coagulation and disinfection of sewage, potassium ferrate(VI) can remove more organic contaminants, COD and bacteria in comparison with the other two coagulants for the same doses used. Also, potassium ferrate(VI) produces less sludge volume and removes more contaminants, which should make subsequent sludge treatment easier.
Jiang
Jia-Qian
JQ
School of Engineering (C5), University of Surrey, Guildford, Surrey GU2 7XH, UK. j.jiang@surrey.ac.uk
Panagoulopoulos
Alex
A
Bauer
Mike
M
Pearce
Pete
P
D000327:Adsorption; D000534:Alum Compounds / Q000737:chemistry / Q000494:pharmacology; D004202:Disinfectants / Q000737:chemistry / Q000494:pharmacology*; D004203:Disinfection / Q000379:methods; D004305:Dose-Response Relationship, Drug; D005290:Ferric Compounds / Q000737:chemistry / Q000494:pharmacology; D058085:Iron Compounds / Q000737:chemistry* / Q000494:pharmacology*; D010100:Oxygen / Q000378:metabolism; D017680:Potassium Compounds / Q000737:chemistry* / Q000494:pharmacology*; D012722:Sewage / Q000737:chemistry / Q000382:microbiology; D014865:Waste Disposal, Fluid / Q000379:methods*; D014871:Water Microbiology; D018508:Water Purification / Q000379:methods*
D000534:Alum Compounds; D004202:Disinfectants; D005290:Ferric Compounds; D058085:Iron Compounds; D017680:Potassium Compounds; D012722:Sewage; C041524:aluminum sulfate; C044384:potassium ferrate; C024823:ferric sulfate; D010100:Oxygen