VGRRC, Women Unions, DED & SNV

VGRRC: Renewable energies (biogas) by Susanne Hugo

VGRRC, Women Unions, DED & SNVVGRRC, Women Unions, DED & SNV

Methane (Biogas) from Anaerobic Digesters


Who we areWho we are

Goat and Rabbit Research Centre in Vietnam (VGRRC)

located in Ha Tay Province

founded in 1978

70 scientific and extension staff

64,9 ha

50 ha for trials fodder production, trial fields intercropping, forest and fish ponds

VGRRC demonstrates the advantages of integrated farming on site


Ha Tay ProvinceHa Tay Province

in northern Vietnam

2.193 km²

14 Districts

Ba Vi National park 7000 ha

Population: 2.386.770

Kinh

Muong & Dao (ethnic Minorities)

Main sources of income:

Agriculture, Small Business, Tourism

Average per capita income per annum:

70 bis 120 US$

Ha Tay Province

Hanoi


Ha Tay ProvinceHa Tay ProvinceSon Tay and Ba Vi districtSon Tay and Ba Vi district

Son Tay & Ba Vi


What we do: What we do:

Research Extension Training

Integrated Farming Systems

Sustainable Development

Goat, sheep and rabbit husbandry

Renewable Energies


Results achieved so farResults achieved so far

are based on simple low-cost technologies and on training. The main beneficiaries are small-scale women farmers who not only carry out much of the work at farm level but who were and continue to be the processors and marketers of their high quality products.

Biogas technology is a complete system in itself with its set objectives (cost effective production of energy and soil nutrients). The residue is known as effluent. It is an almost pathogen-free stabilized manure that can be used to maintain soil fertility, fertilize fishponds end enhance crop production.

This approach enabled the provision of a higher rates of return to farmers and has contributed to a successful and sustainable operation of the farms.

This approach also attracted significant attention from other donors.


Methane (Biogas) Methane (Biogas) from Anaerobic Digestersfrom Anaerobic Digesters

Mrs. Hue and her family had a biogas system installed in Spring 2002

Mrs. Hue has a small restaurant in Ba Vi village

Her husband is fattening pigs in the backyard Mrs.Hue, her husband & Mr. Lin, Mai 2002


Batch-type digestersBatch-type digesters

The anaerobic digester is made out of concreteand placed underground


InletInlet

The design consists of

an inletconnecting the stable to the biogas digester

manure is washed into the digester when the stable floor is flushed with water

this reduces the work load of the farmer considerably

Outlets from empty stables can be temporarily blocked with rocks


OutletOutlet

The design includes

an outlet

to distribute the effluent

directly to the field

or into a fish pond


Processing of wastes for energy recoveryProcessing of wastes for energy recovery & nutrient recycling& nutrient recycling

The solid material drawn from the digester is called sludge, or effluent.

It is rich in nutrients:ammonia, phosphorus, potassiumand more than a dozen trace elements

It is an almost pathogen-free stabilized manure that can be used to maintain soil fertility, fertilize fishponds end enhance crop production.

here, the effluent is used to fertilize a fishpond


Cooking with BiogasCooking with Biogas

Biogas is odourless

The flame is bright, and burns steadily

All types of gas cookers available in Son Tay can use biogas


Cooking with BiogasCooking with Biogas

Mrs. Hue uses biogas

in her restaurant

and for

preparing meals for her family


Improved living conditionsImproved living conditions

A new toilet was built, improving the family’s sanitary conditions

the toilet is also connected to the biogas digester, thus processing human wastes


Direct impactDirect impact

Reduced fuel demands eases the workload of the women who collect it

Reduced needs of fuel wood results in considerable savings for the household

Women are less exhausted and spend more quality time with their families

The reduction in pollutants improves the health status of the women who work in the kitchen

Women in Kim Son, Son Tay transport the fuel wood needed on their way back home from work in the

factory


Converting ManureConverting Manure

Biogas offers an environmental-friendly way of converting manure into methane and almost pathogen-free stabilized fertilizer

its primary benefits are: waste treatment

converting manure into energy and almost pathogen-free stabilized manure fertilizer

odour control

nutrient recycling on-farm


ExtensionExtension

Mr. Son in front of a biogas cooker in an ethnic minority cooking-house

Regular extension visits are made

VGRRC provides assistance and advise

VGRRC co-operates with local women unions the German Development Service (DED) and the Netherlands Development Organisation (SNV) in setting up biogas units in Ba Vi and Son Tay


Training courses for subsistence farmers Training courses for subsistence farmers in their villagesin their villages

VGRRC offers training courses for subsistence farmers

at VGRRC

at their villages

Participants of a training course in Van Hoa, November 2002


You can find us in the WWW:You can find us in the WWW:

For example at

http://www.fao.org/ag/aga/agap/lps/dairy/fdp/vietnam.htmhttp://www.kehlbach.de/

or contact by e-mail: [email protected]

by Telephone: 0084 (0) 34 838 341

via Fax: 0084 (0) 34 838 889

VGRRC, Women Unions, DED & SNV

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