| 초록 |
Capability of loess ball on phosphorous removal in wastewater were investigated. Loess balls manufactured at various calcining temperature and size removed phosphate in the order of (860 , Dia. 2-4 mm) > (960 Dia. 2-4 mm) > (860 , Dia. 5-10 mm) > (960 , Dia. 5-10 mm). Loess balls of batch reactor with temperature changes of artificial wastewater removed phosphate in the order of 30 > 25 > 20 . Theirs pH changes( pH 4, 5, 6, 7, 8, 9, 10) of artificial wastewater(PO43--P 5 ppm) affected the removal of phosphate 4 ppm with pH 4 and 2.5 ppm with pH 10 in 10 h, and be shown more effectively in acidic condition than in alkalic condition. Loess ball(860 , Dia. 2-4 mm) on continuous flow reactor with artificial wastewater(PO43--P 5 ppm) removed phosphate of more 80 % during maximum 60 days. Wastewater treatment of the farm area showed the removed amount of more 70% in F-STEP PROCESS.
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