Appendix 15. Sample of a data sheet used for the experiments on solar dechlorination (halosol technique) of water exposed in a continuous-flow system.

Appendix 15. Sample of a data sheet used for the experiments on solar dechlorination (halosol technique) of water exposed in a continuous-flow system. Experiment No. 4 Solar Reactor: IA Date: 6 May 1986 Initial chlorine residual (mg/L): 6.48 Sky conditions: clear_ hazy x partly cloudy _ cloudy _
Time of day	Flow rate (L/h)	Solar UV-A			Chlorine residual

		Exposure time (min)	Intensity (W/m²)	Fluence (W h/m²)	Influent (C_i, mg/L)	Effluent (C_e, mg/L)	C_e / C_i x 100

7:57	11.69	25	3.25	1.35	6.48	2.50	38.58
8:27	10 23	29	4.40	2.13	6.48	2.15	33.18
8:48	10.23	29	5.49	2.65	6.40	2.00	31.40
9:17	10.20	29	7.09	3.43	6.40	1.68	26.25
9:45	10.50	28	9.30	4.34	6.40	1.15	17.97
10:45	10.27	28	14.65	6.84	6.32	0.73	11.55
11:45	10.54	28	19.20	8.96	6.32	0.55	8.70
12:45	10 54	28	20.80	9.70	6.32	0.30	4.75
13:45	10 40	28	18.45	8.60	6.32	0.32	5.06
14:20	10.40	28	14.20	6.63	6.00	0.40	6.67
14:45	10.36	28	13.33	6.22	6.00	0.45	7.50
15:20	10.37	28	11.95	5.58	6.00	0.40	6.67
15:40	10.35	28	10.13	4.73	6.00	0.58	9.67
Mean +/- SD^a	10.47	28	11.71	5.48	6.26	1.02	16.00
	+/-0.38	+/-l	+/-5.74	+/-2.68	+/-0.19	+/-0.79	+/-12.10
^aSD, standard deviation.