Back to activities

Puxin Biogas Plant

1 min Read

70% Complete

Biogas is potentially one of the most economical sources of energy for mountain farmers. In China, the Shenzhen Puxin Science and Technology Co., Ltd carried out many years’ study to develop the traditional biogas plant and produce a new generation hydraulic biogas system named the PUXIN Biogas Plant. The Puxin biogas plant has three major parts.

Concrete digester: The stomach (digester) of the plant is constructed by casting concrete (1:3:3 mixture of cement, smashed stone, and sand) with the help of ‘scaffolding’ (a steel mould). Hence it is stronger and more earthquake resistant than the traditional plants made of brick or stone mortar. The volume of the digester varies according to the frame; the two basic sizes are 6 and 10 cu m.

Neck and cover: The round part above the digester is known as the neck. This is also made with the help of a steel frame. The neck is essential for fixing the gasholder. The water level above the gasholder in the neck determines the gas pressure. The neck is covered with fi ve concrete covers (slabs), which make the plant attractive and help utilise the plant area.

Gasholder: The gasholder is made of reinforced glassfibre which is 100% air and water tight. The diameter of the gas holder is 1.6 m; the volume varies with the height.

The Puxin biogas plant has more advantages than the traditional fixed dome plant:

Replication of #Godavari Technologies in Chukha District, #Bhutan

Below is an excerpt from Mr. Yeshi Dorji, Agricultural Officer of BCCI, Bhutan about the successful adoption of kiwi cultivation ...

Non-solar Technologies – briquetting, improved stoves

Beehive briquetting technology This technique is an adaptation of methods used to produce charcoal for ...

Trombe Wall (Solar Technology)

A trombe wall keeps rooms warm in winter and cool in summer! We demonstrate a simple trombe wall in the ...

Cover crops

Cover crops are essential for #soil health and varieties of white clover, peanut plants and alfa-alfa are demonstrated at our ...

11 Dec 2019 Income generation
Income Generation through High-Value Cash Crops, Horticulture, and Beekeeping

Developing realistic opportunities for income generation is one of the most challenging tasks of development in mountain areas ...

Vegetation management

At the time that ICIMOD established the Godavari site, the land had been reduced to almost completely degraded ...

High value medicinal plants (Taxus wallichiana-Himalayan yew)

Taxus wallichiana (Himalayan yew), is a species of #yew, native to the Himalaya and parts of ...

Hydropower and Water Pumps

Hydropower is one of the most promising potential sources of energy in the HKH region. The possibilities range from large-scale ...