| 초록 |
Decoloration and particles removal in a waste water generally done by coagulant method. Because of toxicity of some coagulants, PSI (poly silicate iron) started use but, no commercial PSI is available in less expensive cost. In the present investigation, preparation of PSI was developed and its application to food waste treated water was compared with commercial coagulants. We synthesized PSI coagulant from the sodium silicate with suitable acid ratio and concentration. The prepared coagulant was applied to waste water obtained from food waste treatment process. The turbidity, COD, pH change, TOC and dosage concentration of PSI ware conducted in purification process and compared with the commercial coagulants for its effectiveness. |
