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Submitted:
26 July 2023
Posted:
28 July 2023
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Sampling site | Pig (head) | Solid-liquid separation (SLS) | Abbreviations |
---|---|---|---|
Pig farm A (Nonsan) | 2,000 | Drum screen (+Screw Press) | D/S |
Pig farm B (Yeoju) | 2,200 | ||
Pig farm C (Gongju) | 1,000 | Inclined screen (+Screw Press) | I/S |
Pig farm D (Jincheon) | 6,000 | ||
Pig farm E (Yeongcheon) | 10,000 | ||
Pig farm F (Icheon) | 1,600 | Vibration screen (+Screw Press) | V/S |
Pig farm G (Gumi) | 3,000 | Screw Press | S/P |
Pig farm H (Boeun) | 1,000 | ||
Pig farm I (Hapcheon) | 2,000 | Centrifuge | Cf |
Pig farm J (Yeongju) | 3,800 | ||
Pig farm I (Hapcheon) | 2,000 | Centrifuge (+coagulation agent) | Cf (+Cog) |
Pig farm J (Yeongju) | 3,800 | ||
Pig farm K (Changwon) | 4,200 | Belt Press (+coagulation agent) | B/P (+Cog) |
Items | Units | stages | V/S | D/S | I/S | S/P | Cf | Cf (+Cog) |
B/P (+Cog) |
---|---|---|---|---|---|---|---|---|---|
pH | Influents | 6.90 | 7.08 | 7.20 | 7.00 | 7.28 | 7.40 | 7.15 | |
Separated liquid | 6.65 | 7.23 | 7.23 | 6.88 | 7.25 | 7.53 | 7.20 | ||
EC | (mS/cm) | Influents | 50.10 | 34.88 | 22.77 | 44.63 | 28.08 | 29.85 | 32.65 |
Separated liquid | 42.60 | 33.70 | 21.13 | 41.05 | 27.65 | 17.75 | 31.90 | ||
(Reduction, %) | (15.0) | (3.4) | (7.2) | (8.0) | (1.5) | (40.5) | (2.3) | ||
NaCl | (%) | Influents | 1.38 | 0.68 | 0.63 | 2.43 | 0.72 | 0.75 | 0.80 |
Separated liquid | 1.42 | 0.67 | 0.43 | 2.32 | 0.69 | 0.19 | 0.22 | ||
(Reduction, %) | (-2.3) | (0.5) | (32.0) | (4.7) | (4.9) | (74.6) | (72.9) | ||
TS | Influents | 15.82 | 5.53 | 3.47 | 12.55 | 4.19 | 4.68 | 8.24 | |
Separated liquid | 12.17 | 4.82 | 2.78 | 10.74 | 3.39 | 1.50 | 1.75 | ||
(Reduction, %) | (23.0) | (12.8) | (19.9) | (14.5) | (19.0) | (67.9) | 78.8) | ||
SS | Influents | 10.42 | 3.99 | 2.30 | 9.42 | 2.74 | 3.21 | 6.43 | |
Separated liquid | 7.92 | 3.44 | 1.98 | 8.66 | 1.86 | 1.11 | 0.20 | ||
(Reduction, %) | (24.1) | (13.6) | (14.0) | (8.1) | (32.2) | (65.5) | (96.9) | ||
TN | (mg/L) | Influents | 14,933 | 7,088 | 3,704 | 10,787 | 5,015 | 5,197 | 7,852 |
Separated liquid | 12,973 | 6,648 | 3,319 | 10,471 | 4,781 | 3,304 | 4,631 | ||
(Reduction, %) | (13.1) | (6.2) | (10.4) | (2.9) | (4.7) | (36.4) | (41.0) | ||
TP | Influents | 4,277 | 1,022 | 793 | 3,285 | 650 | 785 | 1,603 | |
Separated liquid | 3,874 | 940 | 573 | 2,919 | 457 | 46 | 137 | ||
(Reduction, %) | (9.4) | (8.0) | (27.7) | (11.2) | (29.8) | (94.2) | (91.5) | ||
K | Influents | 7,768 | 3,159 | 2,487 | 6,360 | 2,961 | 2,873 | 3,722 | |
Separated liquid | 7,953 | 3,162 | 2,400 | 6,335 | 2,885 | 2,139 | 1511 | ||
(Reduction, %) | (-2.4) | (-0.1) | (3.5) | (0.4) | (2.6) | (25.6) | (59.4) | ||
BOD5 | Influents | 85,350 | 30,290 | 10,229 | 60,585 | 21,948 | 22,825 | 29,580 | |
Separated liquid | 72,850 | 27,940 | 8,894 | 58,250 | 20,915 | 10,525 | 10,050 | ||
(Reduction, %) | (14.6) | (7.8) | (13.0) | (3.9) | (4.7) | (53.9) | (66.0) | ||
CODMn | Influents | 40,527 | 14,923 | 7,822 | 3,0171 | 11,491 | 13,287 | 18,263 | |
Separated liquid | 34,884 | 14,139 | 6,977 | 2,6291 | 8,295 | 3,245 | 4,104 | ||
(Reduction, %) | (13.9) | (5.3) | (10.8) | (12.9) | (27.8) | (75.6) | (77.5) | ||
Zn | Influents | 110.4 | 55.0 | 33.4 | 105.0 | 65.6 | 65.6 | 738.0 | |
Separated liquid | 104.6 | 50.7 | 28.0 | 109.8 | 57.5 | ND* | 6.8 | ||
(Reduction, %) | (5.2) | (7.8) | (16.0) | (-4.6) | (12.4) | (100.0) | (99.1) | ||
Cu | Influents | 66.2 | 19.5 | 16.6 | 56.7 | 24.3 | 24.0 | 47.8 | |
Separated liquid | 65.9 | 16.8 | 11.0 | 57.3 | 22.1 | 0.3 | 0.9 | ||
(Reduction, %) | (0.4) | (13.8) | (33.7) | (-1.1) | (9.1) | (98.6) | (98.1) | ||
+MC | (%) | Influents | - | - | - | - | - | - | - |
Separated solid | 73.2 | 68.6 | 74.7 | 65.7 | 47.4 | 74.0 | 76.4 |
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