HERNANDO AVILLA of the Research Section of the Bureau of Animal Industry reports that they are now promoting the use of a high-density PE biogas digester. This is much more sturdy than the transparent plastic film earlier used. It is a thick black plastic film that will last for many years.
A model measures 1.5 meters in diameter and 10 meters long. It can be supported by 20 pigs that will produce 30 kilos of manure every day. One unit costs P50,000 to P60,000, according to Mr. Avilla. He can be contacted at 0916-307-7078.