ZES-500
The household system — 3 to 6 cattle
A 2,000 litre floating-dome digester with a matched 2,000 litre gas collection tank, sized for a family of five to eight who already keep three to six animals. Fed 25–50 kg of dung a day mixed one-to-one with water, it produces enough gas for three to five hours of cooking and returns 50–80 litres of organic fertiliser daily.
Specifications
| Type | Floating dome |
|---|---|
| Digester capacity | 2,000 L |
| Gas collection | 2,000 L |
| Gas per day | 1–1.5 m³ |
| Cooking time | 3–5 hrs/day |
| Cattle required | 3–6 |
| Daily feed | 25–50 kg dung, 1:1 with water |
| Retention time | 30–40 days |
| Operating range | 15–30 °C |
| Slurry output | 50–80 litres/day |
| Fertiliser value | Rs 25,000–45,000/yr |
| Material | UV-resistant HDPE |
| Fittings | 1" gas line, ½" stove nozzle, 0–5 psi gauge |