[Stoves] Fwd: Dumaguete City, Philippines -- gasifier stoves, biochar, ecological sa nitation

Mon Oct 6 04:26:34 CDT 2014

Hi Huck, Andrew, List, 
Wood charcoal mixed with sawdust in 1:20 ratio by volume is effective in deodorizing PIGPENS provided the poos are continually covered by the char/sawdust mixture.  I think it can also work in outdoor latrines but I have difficulty visualizing how it could work with indoor water-flushed toilets or urinals. 

In  Calo, Sibulan (adjacent town to Dumaguete), a farm  uses a 1-meter thickness of this mixture in a pen of 6 pigs for a whole year and 2 harvests (pigs are harvested or sold at 6 months old).  At the end of 1 year, the pen is cleaned out of the char/sawdust/manure/urine mixture which are then transferred to composting chambers with worms (vermiculture).  The compost that is formed in 1-2 weeks is used to fertilize the vegetable garden.  Biogas is produced from the daily washings of cement floored pigpens for the mother pigs and newly born piglets.  There is no briquetting of the char/sawdust/manure mixture. 

My main concern with handling human or domestic animal waste are the pathogens and the high risk of infection faced by the poor labourers -- they often end up with TB and other diseases.  Raising pigs and briquetting of human and domestic animal wastes could well be good income generating projects for the poor but could be at great cost to their health.  

As for gasifier stoves as source of clean burning char (e.g. fuel for charcoal fired ovens), I would like to see the economics  of that char production process compared to the traditional charcoal making techniques practised in the Philippines and other char producing technologies. 

Rebecca Vermeer 
The Eco-Kalan Project in the Philippines 

----- Original Message -----

From: "Cookswell Jikos" <cookswelljikos at gmail.com> 
To: "Discussion of biomass cooking stoves" <stoves at lists.bioenergylists.org> 
Sent: Thursday, October 2, 2014 9:54:31 PM 
Subject: Re: [Stoves] Fwd: Dumaguete City, Philippines -- gasifier stoves, biochar, ecological sa nitation 

Hi Huck -  

While I am not sure about putting char into a toilet - I just heard about these guys in Kenya making charcoal briquetts for cooking food out of human waste... they are looking for 15,000 grand here - https://www.indiegogo.com/projects/sanivation-turning-poo-into-power I imagine they will need a very, very good marketing team to convince folks to cook on these though..  

Teddy  

Cookswell Jikos 
www.cookswell.co.ke 
www.facebook.com/CookswellJikos 
www.kenyacharcoal.blogspot.com 
Mobile: +254 700 380 009  
Mobile: +254 700 905 913 
P.O. Box 1433, Nairobi 00606, Kenya 

Save trees - think twice before printing . 

On Fri, Oct 3, 2014 at 7:47 AM, Huck Rorick < huckrorick at groundwork.org > wrote: 

We were considering using char in composting toilets.  Do you know of anyone with experience with these types of uses? 

Huck 

-----Original Message----- 
From: Andrew Heggie [mailto: aj.heggie at gmail.com ] 
Sent: Thursday, October 2, 2014 12:39 AM 
To: Discussion of biomass cooking stoves 
Subject: [Stoves] Fwd: Dumaguete City, Philippines -- gasifier stoves, biochar, ecological sa nitation 

Rebbecca sent this to the admin address but I think it is relevant in the context of clean burning. The idea of using the char for odour control in urinals is interesting if it works. 

AJH 

---------- Forwarded message ---------- 

Date: 2 October 2014 00:38 
Subject: Dumaguete City, Philippines -- gasifier stoves, biochar, ecological sa nitation 

Ron, List, 

An ambitious attempt is underway in Dumaguete City to promote gasifier-stoves in the public market to replace (totally ban or reduce use of) open fire (polluting wood) stoves and expensive bottled gas stoves. 

The (bio)char is intended to be collected for use as a replacement for the expensive deodorizing agent for 1) the water-less urinals of the public pay toilets in the public market, and 2) the city garbage dumps to reduce its PhP10 million annual budget for odor control. 

The city market manager, an engineer, has been introduced to the Belonio-Olivier gasifier stove, and plans to have Paul's 150 gasifier reactor fabricated locally (using the modified Belonio burner from 
Vietnam.) Engineer Fortin's efforts in waste-conversion technologies have the support of the City Mayor who has allowed him time to interface with Paul Olivier in Vietnam. 

Dumaguete City has been listed as among the desirable retirement places for North American and European expats. 

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