In order to determine, during the production of sunflower and corn oil which are
produced at different times, the efficiency of the treatment, triplicate samples were
taken from four different points as indicated in Fig. 8.3 and analyzed. Wastewater
samples taken from points 1, 2, 3, and 4 represent the inlet of the wastewater
treatment plant, the outlet of chemical treatment, and the outputs of the first stage
(facultative treatment) and second stage of biological treatment (completely mixed
aeration basin). Wastewater samples except for point 1 were the supernatant of each
treatment stage taken at the outlet weir of the treatment unit [20]. Average values of
the measured parameters and results of the analysis of wastewater samples are given
in Tables 8.12 and 8.13. Sampling points were indicated in accordance with statements given the above. Soluble COD and soluble BOD 5 are shown as SCODs and
SBOD 5 .
Table 8.11 Characterization of wastewater formed during sunflower oil refining at Kirlangic Oil
Factory [80]
Parameter
Minimum
Maximum
Mean
Standard deviation
pH
3.5
4.5
4.01
0.5
COD (mg/L)
8,345
9,700
9,215
756.1
SCOD (mg/L)
5,195
5,560
5,385
182.8
BOD 5 (mg/L)
1,500
1,900
1,850
327.9
SBOD 5 (mg/L)
1,450
1,800
1,550
217.9
TSS (mg/L)
1,516
1,985
1,733
236.5
TKN (mg/L)
458.3
625
517.6
93.2
NH 3 (mg/L)
18
51
29.6
18.5
Total P (mg/L)
52
420
177.3
210.2
Oil-grease (mg/L)
533
760.2
664.3
117.6
Sulfate (mg/L)
10,800
11,750
11,416
534.1
Color (Pt-Co)
224
272
242
21.6
Table 8.10 Characterization of wastewater formed during corn oil refining at Kirlangic Oil Factory
[80]
Parameter
Minimum
Maximum
Mean
Standard deviation
pH
2.72
2.85
2.79
0.07
COD (mg/L)
11,580
15,450
12,880
2225.7
Soluble COD (SCOD) (mg/L)
5140
6700
5680
884.7
BOD 5 (mg/L)
1250
2278
1932
591.2
Soluble BOD 5 (SBOD 5 ) (mg/L)
1100
1207
1135
61.78
TSS (mg/L)
1058
2990
2850
1077.3
TKN (mg/L)
1125
1458
1261
174.7
NH 3 (mg/L)
38
62
48
12.5
Total P (mg/L)
275
775
583
269.6
Oil-grease (mg/L)
307.8
498.6
375
107.2
Sulfate (mg/L)
11,900
12,300
12,006
257.2
Color (Pt-Co)
868
1700
1161
467.1
8 Vegetable Oil Refining Wastes
361
produced at different times, the efficiency of the treatment, triplicate samples were
taken from four different points as indicated in Fig. 8.3 and analyzed. Wastewater
samples taken from points 1, 2, 3, and 4 represent the inlet of the wastewater
treatment plant, the outlet of chemical treatment, and the outputs of the first stage
(facultative treatment) and second stage of biological treatment (completely mixed
aeration basin). Wastewater samples except for point 1 were the supernatant of each
treatment stage taken at the outlet weir of the treatment unit [20]. Average values of
the measured parameters and results of the analysis of wastewater samples are given
in Tables 8.12 and 8.13. Sampling points were indicated in accordance with statements given the above. Soluble COD and soluble BOD 5 are shown as SCODs and
SBOD 5 .
Table 8.11 Characterization of wastewater formed during sunflower oil refining at Kirlangic Oil
Factory [80]
Parameter
Minimum
Maximum
Mean
Standard deviation
pH
3.5
4.5
4.01
0.5
COD (mg/L)
8,345
9,700
9,215
756.1
SCOD (mg/L)
5,195
5,560
5,385
182.8
BOD 5 (mg/L)
1,500
1,900
1,850
327.9
SBOD 5 (mg/L)
1,450
1,800
1,550
217.9
TSS (mg/L)
1,516
1,985
1,733
236.5
TKN (mg/L)
458.3
625
517.6
93.2
NH 3 (mg/L)
18
51
29.6
18.5
Total P (mg/L)
52
420
177.3
210.2
Oil-grease (mg/L)
533
760.2
664.3
117.6
Sulfate (mg/L)
10,800
11,750
11,416
534.1
Color (Pt-Co)
224
272
242
21.6
Table 8.10 Characterization of wastewater formed during corn oil refining at Kirlangic Oil Factory
[80]
Parameter
Minimum
Maximum
Mean
Standard deviation
pH
2.72
2.85
2.79
0.07
COD (mg/L)
11,580
15,450
12,880
2225.7
Soluble COD (SCOD) (mg/L)
5140
6700
5680
884.7
BOD 5 (mg/L)
1250
2278
1932
591.2
Soluble BOD 5 (SBOD 5 ) (mg/L)
1100
1207
1135
61.78
TSS (mg/L)
1058
2990
2850
1077.3
TKN (mg/L)
1125
1458
1261
174.7
NH 3 (mg/L)
38
62
48
12.5
Total P (mg/L)
275
775
583
269.6
Oil-grease (mg/L)
307.8
498.6
375
107.2
Sulfate (mg/L)
11,900
12,300
12,006
257.2
Color (Pt-Co)
868
1700
1161
467.1
8 Vegetable Oil Refining Wastes
361