Table 10.2.

Comparison of self-purification time between the calculation value and the measured value

No.	n (h−1)	N 0 (test value) (#/L)	N (calculated value) (#/L)		nt	t(calculated value) min	t(test value) min
1	28.1	2.6 × 104	22	1.18 × 103	765	27	26
2	29	1 × 104	16	6.3 × 102	670	23	24
3	67	5.4 × 104	14	3.85 × 103	775	12	18˜20
4	59	4.5 × 104	16	2.8 × 103	750	13	15˜27
5	21	2 × 104	22	9 × 102	680	33	33˜38
6	21	6 × 103	22	270	620	30	30˜35
7	70	9 × 104	9.5	9.5 × 103	830	12	8˜15
8	185	5.8 × 104	3.8	1.5 × 104	850	4.6	19
9	36	7 × 104	28	2.5 × 103	748	21	14
10	72	7 × 104	14	5 × 103	780	11	11.5
11	120	7 × 104	9.8	7.2 × 103	810	6.7	6.5
12	150	7 × 104	8	8.7 × 103	820	5.5	5.5
13	180	7 × 104	6.8	1.1 × 104	830	4.7	3
14	230	7 × 104	5.4	1.3 × 104	850	3.6	3
15	25	1.1 × 103	10	1.1 × 102	560	22	16
16	50	8.5 × 102	10	0.85 × 102	540	11	10
17	40	105	200	5 × 102	650	16	30
18	29	1.06 × 105	15	7 × 103	810	28	30