[Stoves] the price of bottled gas

Sun May 5 18:14:35 CDT 2013

AD,

Here in Vietnam collectors of food waste can be found everywhere, even in
Hanoi and Saigon.
I took these pictures of scavengers collecting food waste right in the
center of Hanoi:

https://dl.dropboxusercontent.com/u/22013094/Food%20Waste/Pic/001.jpg
https://dl.dropboxusercontent.com/u/22013094/Food%20Waste/Pic/002.jpg
https://dl.dropboxusercontent.com/u/22013094/Food%20Waste/Pic/003.jpg

To make fuel of food waste is such a waste of valuable nutrients. If we
feed food waste (fresh, cooked or fermented) to pigs, we are able to
reintegrate nutrients back into the food chain at the highest possible
level. The pig is raised on a dry biomass bedding laced with biochar. Here
no water is needed for flushing pig waste. The pigs are raised in a totally
dry environment. There is no odor. Yes, I repeat, there is no odor. There
are no flies. There is none of the disease normally associated with raising
pigs. The pigs play in the bedding and even eat it. The larvae and red
worms cultivated on pig feces are quite valuable. The vermi-compost
produced here is a marvelous fertilizer and soil amendment. The bedding
that absorbed the urine of the pig contains a lot of N and can even be fed
to cows.

If it's fuel we need, we should turn, not to Type 1 waste, but to Type 4
waste. Vietnam has over a 80 million tons of ligno-cellulosic waste (Type 4
waste) that can be processed into syngas and biochar. The syngas can
replace bottled gas, and the biochar can be mixed with compost and
vermi-compost to make a wonderful growing medium for plants.

It's all about exploiting waste for all its worth.

Thanks.
Paul

> Our biogas system uses urban domestic biodegradable garbage as
> feedstock.  This material is causing a lot of difficulties to our
> municipalities. People have tried the vermicompost route of organic garbage
> disposal, but in the cities they do not know how and where to use the
> vermicompost. That is why we advocate the conversion of food and kitchen
> waste into biogas. In our process, 1 kg (dry weight) of human food waste
> yields almost 1`kg biogas, leaving no disposable residue behind. It
> contains about 360 to 370 g methane, having calorific value of about 4200
> to 4300 kcal/kg, matching almost the calorific value of wood. Our biogas
> process is not patented. We encourage people to copy it and we estimate
> that almost 10,000 biogas plants of our design are operating all over the
> world.
> Yours
> A.D.Karve
>
> On Sat, May 4, 2013 at 4:01 PM, Paul Olivier <paul.olivier at esrla.com>wrote:
>
>>   Dear A.D.
>>
>> Making biogas from type 1 or type 2 waste is not ideal.
>> Please see:
>> https://dl.dropboxusercontent.com/u/22013094/Paper/Summaries/Alternative%20to%20Biodigestion.pdf
>>
>> Paul
>>
>>
>>
>> On Sat, May 4, 2013 at 8:00 AM, Anand Karve <adkarve at gmail.com> wrote:
>>
>>> Dear Stovers,
>>> As cooking energy, biogas can easily replace LPG or CNG. Biogas gives a
>>> blue flame without smoke or soot, its flame intensity can be controlled at
>>> will and turning it on or off is as easy as LPG. Our work showed back in
>>> 2003 that dung is not needed for biogas production and that material like
>>> sugar, starch, cellulose, digestible protein and fats can all be used as
>>> feedstock. In our city, waste flour, swept from the floor of a flour mill
>>> is available for about US Cents 10 per kg. 3 kg flour give enough biogas to
>>> replace one kg LPG costing US Cents 80 (subsidised price) or US$1.6
>>> (unsubsidised price. If you have a few green leafy plants around your
>>> house, or have access to the local vegetable market waste, 10kg fresh green
>>> leaves (available for no cost) would yield enough biogas to replace about 1
>>> kg LPG.
>>> Yours
>>> A.D.Karve
>>>
>>>  On Fri, May 3, 2013 at 4:53 PM, Paul Olivier <paul.olivier at esrla.com>wrote:
>>>
>>>>   CNN just ran a new clip about the partial lifting of subsidies for
>>>> bottled gas in Egypt - major point of unrest among the Egyptian people.
>>>> Also there is this from Reuters:
>>>>
>>>> http://uk.reuters.com/article/2013/04/01/uk-egypt-gas-idUKBRE93005I20130401
>>>>
>>>> The price of bottled gas is a huge problem throughout most of the
>>>> developing world. If we can design gasifiers or pyrolyzers that produce a
>>>> gas that can compete with bottled gas, this will have profound economic and
>>>> political consequences.
>>>>
>>>> The first step in making this happen lies in preparing biomass, in all
>>>> of its many forms, into a predictable fuel.
>>>>
>>>>  Thanks.
>>>> Paul Olivier
>>>> --
>>>> Paul A. Olivier PhD
>>>> 26/5 Phu Dong Thien Vuong
>>>> Dalat
>>>> Vietnam
>>>>
>>>> Louisiana telephone: 1-337-447-4124 (rings Vietnam)
>>>> Mobile: 090-694-1573 (in Vietnam)
>>>> Skype address: Xpolivier
>>>> http://www.esrla.com/
>>>>
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>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> ***
>>> Dr. A.D. Karve
>>> Trustee & Founder President, Appropriate Rural Technology Institute
>>> (ARTI)
>>>
>>>
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>>>
>>
>>
>> --
>> Paul A. Olivier PhD
>> 26/5 Phu Dong Thien Vuong
>> Dalat
>> Vietnam
>>
>> Louisiana telephone: 1-337-447-4124 (rings Vietnam)
>> Mobile: 090-694-1573 (in Vietnam)
>> Skype address: Xpolivier
>> http://www.esrla.com/
>>
>> _______________________________________________
>> Stoves mailing list
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>>
>>
>>
>
>
> --
> ***
> Dr. A.D. Karve
> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
>
>
> _______________________________________________
> Stoves mailing list
>
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>
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>
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>
>
>

-- 
Paul A. Olivier PhD
26/5 Phu Dong Thien Vuong
Dalat
Vietnam

Louisiana telephone: 1-337-447-4124 (rings Vietnam)
Mobile: 090-694-1573 (in Vietnam)
Skype address: Xpolivier
http://www.esrla.com/
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