Intergraded Applied Methodology for the Treatment of Heavy Polluted Waste Waters from Olive Oil Industries

Table 5

Physicochemical characteristics of mature compost (120 d).

Parameters	CS1A	CS1A1	CS2B	CS2B1
Moisture %	32.1 ± 5.03	26.8 ± 2.35	28.2 ± 1.99	22.5 ± 2.19
pH	7.2 ± 0.05	7.7 ± 0.03	7.7 ± 0.03	7.6 ± 0.01
Ash, % of dry matter	25.85 ± 1.87	29.68 ± 1.33	28.81 ± 1.66	27.10 ± 1.51
Organic matter, % of dry matter	74.15 ± 3.09	70.32 ± 4.12	71.19 ± 2.99	72.90 ± 1.97
Total organic carbon, % of dry matter	40.7 ± 4.31	37.27 ± 3.16	40.58 ± 3.01	39.01 ± 2.19
Total kjeldahl nitrogen,%	1.13 ± 0.16	1.33 ± 0.22	1.30 ± 0.14	1.44 ± 0.11
Total phosphorous %	0.45 ± 0.11	0.55 ± 0.05	0.61 ± 0.12	0.52 ± 0.07
C/N ratio	36.01 ± 3.41	28.02 ± 2.13	31.22 ± 3.04	27.09 ± 2.21
C/P ratio	90.44 ± 12.91	67.76 ± 7.01	66.52 ± 9.18	75.01 ± 5.66
Humic substances, % of dry matter	5.84 ± 1.09	6.35 ± 0.97	7.04 ± 1.13	7.15 ± 0.88
Total phenolic compounds, mg/kg	212 ± 34	192 ± 23	188 ± 51	173 ± 19
Germination index	124 ± 21	138 ± 12	177 ± 19	201 ± 9
Grow index %	73 ± 5	77 ± 6	77 ± 10	92 ± 3