| Location | No. of pigs | No. of pens | No. of sties | No. of farms | Average No. of pigs/farm |
| Pantai Acheh | 1 299 | 472 | 42 | 26 | 50 |
| Gertak Sanggul | 4 352 | 818 | 30 | 11 | 395 |
| ca. 7 000* | 15* | 470 | |||
| Batu Maung | 11 006 | 1 810 | 115 | 52 | 211 |
| ca. 11 000* | 74* | 149 |
* According to Taiganides, 1979
Table 10.2 Waste characteristics - A pig estate of 11 000 pigs (from Taiganides, 1979)
| N a m e | Waste parameter | Preliminary design values | ||
| Symbol | Unit | |||
| Standing pig population | SPP | - | 2 | 11 000 |
| Pig animal unit | PAU | - | 1 | 5 500 |
| Total live weight | TLW | kg/d | 100 | 550 000 |
| Total wet waste as excrated | TWW | kg/d | 5.1 | 38 050 |
| Total liquid wastewater (includes wash water and TWW) | TLW | l/d | 25 | 137 500 |
| Total solids | TTS | kg/d | 0.69 | 3 795 |
| Total volatile solids | TVS | kg/d | 0.57 | 3 135 |
| Biochemical oxygen demand | BOD | kg/d | 0.22 | 1 210 |
| Chemical oxygen demand | COD | kg/d | 0.72 | 3 941 |
| Total Kjeldahl nitrogen | TKN | kg/d | 0.039 | 914 |
| Total phosphates | TPO | kg/d | 0.017 | 94 |
| Process component | Design parameter | Land index | Index rank | |
| Anaerobic digestion | - volume | 2 kg TVS/m3-d | 1 670 m3 | 1 |
| - depth | 3 m | - | ||
| - area | - | 500 m2 | ||
| High rate algae system | - area | 200 kg BOD/ha-d | 6 ha | 1 |
| Aerated lagoons | - volume | 0.5 kg BOD/m3/d | 2 500 m3 | 1 |
| - depth | 2 m | - | ||
| - area | - | 1 250 m2 | ||
| - energy | 0.9 kg BOD/Kwh | 1 090 Kwh/d | ||
| Anaerobic lagoon | - volume | 200 kg TVS/m/d | 16 700 m3 | 2 |
| 1.5 m | ||||
| - | 1 ha | |||
| Oxidation ditch | - volume | 2 kg BOD/m3/d | 605 m3 | 2 |
| - depth | 1.2 m | - | ||
| - area | - | 1 000 m2 | ||
| - rotors | 1 kg BOD/m/h | 50 m | ||
| - energy | 0.7 KwMr/kg BOD | 850 Kwh/d | ||
| Oxidation ponds | - volume | - | 100 000 m3 | 3 |
| - depth | 1.2 m | - | ||
| - area | 100 kg BOD/ha-d | 12.5 ha | ||
| Fishponds | - area | 8 kg BOD/ha/d | 150 ha | 10 |
| -area | 1.5 kg TKN/ha/d | 140 ha | ||
| Shrimp ponds | - area | 0.2 kg TKN/ha-d | 1 070 ha | 100 |
Table 10.4 The composition of wastes from commercial piggeries (mg/kg wet waste) (Woynarovich, 1979)
| Component | Solid waste (average) | Liquid waste* | Liquid phase | |
| Minimum | Maximum | |||
| O2 consumption | 32 087 | 8 558 | 90 900 | 8 858 |
| BOD5 | 15 389 | 4 000 | 41 324 | 5 444 |
| S | 38 | 14 | 85 | 37 |
| Total N | 2 612 | 824 | 8 302 | 1 139 |
| NH4 | 1 421 | 260 | 6 150 | 543 |
| PO4 (water soluble) | 1 038 | 300 | 1 840 | 432 |
| P2O5 (water soluble) | 776 | 224 | 1 375 | 323 |
| Total P2O5 | 1 268 | 687 | 2 555 | 514 |
| Total K2O | 2 345 | 720 | 6 300 | 1 233 |
| Dry matter | 38 367 | 12 600 | 113.310 | 11 171 |
| Organic matter | 31 240 | 8 520 | 97 060 | 7 984 |
| Floating matter | 31 923 | 8 810 | 98 090 | 7 418 |
| Dissolved matter | 6 444 | 2 896 | 16 095 | 3 752 |
| Dissolved mineral | 2 873 | 950 | 6 070 | 1 863 |
| pH | 7.9 | 7.2 | 9.0 | 7.6 |
| Conductivity | 10 562 | 4 624 | 26 673 | 5 944 |
Table 10.5 Average waste production per pig (in Hungary)* (Woynarovich, 1979)
| Pig type | Faeces (kg/day) | Urine (l/day) | Total (kg/day) |
| Fattening pig, 20–220 day old | 3.0–3.4 | 3.5–4.0 | 6.5–7.4 |
| Sow (one-year average) | 7.5–8.5 | 8.0–9.0 | 15.5–17.5 |
| Boar (one-year average) | 7.0–8.0 | 7.0–8.5 | 14.0–16.5 |
| Piglet (30–60 day old) | 0.9–1.4 | 1.6–2.0 | 2.5–3.4 |
| Young pig (one-year average) | 4.0–6.0 | 4.5–6.5 | 8.5–12.5 |
