1996 Volume 19 Issue 5 Pages 412-416
Determination of BOD, COD, TOC, T-N and T-P in the homemade- and market-soap were performed by 6 laboratories to examine analytical precision and to know organic pollutant loads. Coefficient of variance of measurements for BOD, COD and TOC was 3 to 27%, 6 to 38%, 2.7 to 17%, respectively. These results indicated that there were no significant among them. The organic pollutant load of pudding like soap per dryness weight were similar those solid soap. The load of powder soap made in miniplant was lowest value. The difference of BOD per organic substance unitweight was not found in the method of process and shape of soap. Each load of T-N and T-P was negligible level.
