Low technology digesters, also known as low cost digesters, are those characterized by the absence of active mixing devices and/or active heating systems (martí. To operate a digester, the producer has to charge it. Fixed dome is not costly
Bauer Pilot Digester
The introduction of polyethylene tube digesters on small farms in vietnam has made a good impact because of the low costs, the simplicity of construction and operation, high rate of benefit, positive effects on the environment and improvement of women's lives in rural areas.
The most common biogas production is done in large capacity which required large area and high cost to be operated.
The digester was based on a design first found in. Low cost polyethylene tube digestor: Types of biogas digesters and plants. With this system a hermetic isolated tank is obtained (figure td1 ).
2.1 fixed dome biogas plants.
2.1 fixed dome biogas plants. Low cost polyethylene tube digester plant: Cost of production is cheaper and easier to be operated. This is obviously one important feature which makes the polyethylene digesters attractive and no farmer in the present study complained about the price.
The biodigesters have become an important component of integrated farming systems in rural areas.
In order to benefits the consumer on the biogas production, varieties of innovated household biodigester machines were introduced.this portable. Types of biogas digesters and plants. Two layers of a tubular polyethylene film of 300 µm are folded at each end around a 6 inches pipe of drainage out of vinyl polychloride (pvc) and is rolled up with a rubber bracelet. 21.5 cm x 28 cm.
What are the two types of biogas plant?
This has overcome the problem of low rates of gas flow when the digester is located a long way from the kitchen and when the connecting gas tube has a narrow diameter. Iica, belize audubon society, ministry of agriculture and fisheries, 2009.
