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BiogasSIG


Advice sought on suitable digestor for flood-porne village in Andhra Pradesh.

By Michael Davies
www.theE-ACharity.org.uk mcadavies at uwclub.net

We run a Charity supporting a small village 200m N of Chennai, Andhra Pradesh, India. Our Project Director wants to install a biogas plant - powered by water buffalo dung. I am sure that he can source one locally but does anyone have any particular advice or suggestions?
The village is subject to occasional (annual?) flooding.
Are there any explosion risks? - it will be adjacent to a children's hostel.
Uganda
Hello Michael Davies,

I have not handled buffalo dung before, my guess is that it is similar to
cow dung. If that is the case, then it is possible to generate biogas from
it. However, the quantity of water in the buffalo dung should not exceed the
allowable limits.

Do you have an idea on the water table? Is it generally high or low? When
you say, 'the village is subject to occasional flooding', does it means the
entire village gets flooded with water? Are there possibilities of diverting
the water? I guess this will be a small biogas unit?? If piping is done
right, explosions will not happen. I have installed a biogas unit at an
orphanage home in Kampala, it is working well.

On Wed, Jul 6, 2011 at 5:04 AM, <hedon@hedon.info> wrote:

>
> By Michael Davies
> www.theE-ACharity.org.ukmcad@...
>
> We run a Charity supporting a small village 200m N of Chennai, Andhra
> Pradesh, India. Our Project Director wants to install a biogas plant -
> powered by water buffalo dung. I am sure that he can source one locally but
> does anyone have any particular advice or suggestions?
> The village is subject to occasional (annual?) flooding.
> Are there any explosion risks? - it will be adjacent to a children's
> hostel.
>
> --
> HEDON BiogasSIG - Established in 2011 BiogasSIG connects experts, suppliers
> and end-users in an energetic flow of information that helps to establish
> biogas projects based on best practice.
> Unsubscribe www.hedon.info/Groups | Visit the forum online
> http://www.hedon.info/forum19
>
>


--
Vianney Tumwesige
Director - Green Heat (U) Ltd image: Picture
P.O. Box 10235
Kampala-Uganda
256 (0) 71 237 9889

"The more people are self sufficient in cooking fuel, the more personal and
financial freedom they have." - Emma Casson


<http://trustvianney.wordpress.com/>
United Kingdom
Hello Michael,

SKG Sangha (http://www.skgsangha.org) won an Ashden Award (see
www.ashdenawards.org) for their project building biogas plants in South India.
They build the Deenbandhu design (underground masonry dome) which seems to be
the most reliable design used in India. They also make a vermi-culture system to
generate very good quality fertiliser from the effluent from the biogas plant.

Flooding will not affect the plant itself, unless soil is washed away from the
covering over the plant. It will tend to dilute the dung in the plant, but the
plant should recover once the floods have receded.

The explosion risk from the plant is minimal. The main danger lies in gas leaks
in equipment used in the kitchen, but this is a lot less than the risks from
using LPG. The gas pressure is much lower and biogas is much harder to ignite
than LPG. LPG spark lighters often do not work with biogas burners, it is better
to use a cigarette lighter.

--
Best regards,
David
mailto:davidf@kingdombio.com

Wednesday, July 6, 2011, 1:04:41 PM, you wrote:


> By Michael Davies
> www.theE-ACharity.org.ukmcad@...

> We run a Charity supporting a small village 200m N of Chennai, Andhra
> Pradesh, India. Our Project Director wants to install a biogas plant - powered
> by water buffalo dung. I am sure that he can source one locally but does
> anyone have any particular advice or suggestions?
> The village is subject to occasional (annual?) flooding.
> Are there any explosion risks? - it will be adjacent to a children's hostel.


********************************************************************
Dr David Fulford CEnv MEI, 15, Brandon Ave, Woodley, Reading RG5 4PU
d.j.fulford at btinternet.com, Tel: +44(0)118 326 9779 Mob: +44(0)7746 806401
Kingdom Bioenergy Ltd, www.kingdombio.com, davidf at kindombio.com




India
Dear Michael DaviesThe local organisation, namely NEDCAP should be able to provide technical support including precautions to be taken care of for constructing a biogas plant in flood prone area.Prefer to select a site which is relatively upland and use reinforced concrete foundation.Water buffalo dung is suitable to producing biogas.best of luck.Kailash Khandelwal


From: hedon at hedon.info <hedon@hedon.info>
Subject: BiogasSIG Advice sought on suitable digestor for flood-porne village in Andhra Pradesh.
To: advkck at yahoo.com
Date: Wednesday, 6 July, 2011, 5:34 PM


By Michael Davies
www.theE-ACharity.org.ukmcad@...

We run a Charity supporting a small village 200m N of Chennai, Andhra Pradesh, India. Our Project Director wants to install a biogas plant - powered by water buffalo dung. I am sure that he can source one locally but does anyone have any particular advice or suggestions?
The village is subject to occasional (annual?) flooding.
Are there any explosion risks? - it will be adjacent to a children's hostel.

--
HEDON BiogasSIG - Established in 2011 BiogasSIG connects experts, suppliers and end-users in an energetic flow of information that helps to establish biogas projects based on best practice.
Unsubscribe www.hedon.info/Groups | Visit the forum online http://www.hedon.info/forum19
The main risk I know relating to floods and biodigesters is actually flooding the tank itself (and maybe even groundwater contamination). The outlet must simply be placed above the highest known water level to prevent this.

Although, after a quick search, I found a number of articles discouraging flood-prone areas. Reasons being; damage to the system, and difficulties with sub-soil construction.
 
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