Co-composting of Olive Mill Waste and Wine-Processing Waste: An Application of Compost as Soil Amendment

Table 1

Physicochemical characteristics of the raw materials used for composting process.

Parameters	OMS	OMW	Grape marc	Winery wastewater	Green waste
pH	5.42 ± 0.03	5.43 ± 0.05	7.42 ± 0.20	6.66 ± 0.02	5.88 ± 0.02
EC (mS·cm^−1)	8.72 ± 0.02	8.02 ± 0.02	4.81 ± 0.03	0.76 ± 0.02	1.63 ± 0.02
Moisture (%)	22.66 ± 3.69	92.47 ± .0.56	72.42 ± 0.58	99.86 ± 0.01	36.98 ± 4.59
Dry matter (%)	77.34 ± 3.69	7.53 ± 0.56	27.58 ± 0.58	0.14 ± 0.01	63.02 ± 4.59
Mineral matter (%)	15.05 ± 5.91	25.25 ± 5.46	30.19 ± 1.65	45.20 ± 6.63	35.15 ± 1.95
Organic matter (%)	84.95 ± 5.91	74.75 ± 5.46	69.81 ± 1.65	54.80 ± 6.63	64.85 ± 1.95
Organic carbon (%)	49.28 ± 3.43	43.36 ± 3.16	40.49 ± 0.96	31.78 ± 3.84	37.61 ± 1.13
TKN (%)	0.74 ± 0.12	0.86 ± 0.15	0.97 ± 0.10	3.75 ± 0.30	1.53 ± 0.06
C/N	67.77 ± 9.73	ND	42.06 ± 3.47	ND	24.69 ± 1.19
COD (g·O2/l)	ND	96.07 ± 0.5	ND	14.07 ± 0.1	ND
BOD (g·O2/l)	ND	25.67 ± 0.51	ND	14.40 ± 0.4	ND

ND: not determined.