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http://dx.doi.org/10.4491/KSEE.2014.36.2.96

Phosphorus Removal from Advanced Wastewater Treatment Process Using PAC  

Park, Wan-Cheol (Korea Institute of Science and Technology)
Lee, Mi-Ae (Biomecca Incorporation)
Sung, Il-Wha (Department of Environmental & Energy Engineering, Gachon University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.36, no.2, 2014 , pp. 96-102 More about this Journal
Abstract
To meet the reinforced discharge standards, effect of coagulant PAC (Poly aluminium chloride, 10.4% as $Al_2O_3$) on phosphorous removal in advanced wastewater treatment process (a modified $A^2$/O). 15 mg/L of PAC determined by jar-test was added to influent of settling basin in a modified $A^2$/O consists of anaerobic, anoxic, and oxic chamber which contains Bio-clod and porous polyurethane media. Performance of PAC was tested by supernatant after settling. The removal efficiencies of BOD, COD, TP (total phosphorus) and SP (soluble phosphorus) on biological process with PAC were 96.1%, 88.8%, 97.0% and 98.6%, compared with those on biological process without PAC were 95.4%, 72.4%, 71.6% and 59.5% respectively. 18.4% of TP and 39.1% of SP removal efficiency was increased, although increase of BOD and COD removal rate was not significant. Only PAC addition to influent of settling basin in $A^2O$ process can help total phosphorus removal to 0.13 mg/L with following discharge standard.
Keywords
Phosphorus Removal; Advanced Treatment; Poly aluminium chloride (PAC); Coagulation;
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Times Cited By KSCI : 4  (Citation Analysis)
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