Harmony Gold Steyn 1
A complete biogas train for an anaerobic digestion plant: roofs, buffer storage, chilling, boosting and flaring.

Digester gas production at a wastewater works never matches demand minute by minute. Welgedacht solved this with a 2,150 m³ Sattler double-membrane gas holder supplied and installed by Renew for WEC Projects.
The holder buffers production peaks, maintains constant delivery pressure to the gas users and keeps losses to a minimum with a permanently gas-tight inner membrane.
| Location | Welgedacht, Gauteng |
|---|---|
| Client | WEC Projects |
| Commissioned | |
| Category | Sewage gas, Biogas |


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