Hi Richard,

A copper wire test is to detect the presence of halogens in dung. When u insert 
a copper wire in the dung fire the flame color changes to green. On washing the 
dung, drying n then burning the dung removed the halogen n hence no change in 
the flame color. 

Cheers

Sarbagya 

Sent from my iPhone

On 12/02/2012, at 1:28 AM, Richard Stanley <[email protected]> wrote:

> Dear sarbagya,
> What is the copper wire test?
> Richard Stanley
> 
> Sent from my iPhone
> 
> On Feb 10, 2012, at 18:27, Sarbagya Tuladhar <[email protected]> wrote:
> 
>> Hi Boston 
>> 
>> I volunteered with EWB Australia in Nepal working on a clean dung burning 
>> stove and thus worked with the dung as a fuel . Washing of the dung was done 
>> and briquettes which was a real success. Paper pulp used as a binder worked 
>> really well. Also the chloride contents of the dung which is responsible for 
>> watery eyes was removed on washing the dung which was proven by the copper 
>> wire test. We even fabricated a simple dung press for the same. The liquid 
>> portion of the dung was reutilised as manure in the fields. Thus the whole 
>> sceptism about "should" use dung as manure in the fields and not as a 
>> cooking fuel was somewhat solved. Did not test the NPK contents of the 
>> liquid portion though...
>> 
>> Sarbagya 
>> 
>> Sent from my iPhone
>> 
>> On 11/02/2012, at 2:06 AM, Boston Nyer <[email protected]> wrote:
>> 
>>> Hello,
>>> 
>>> I'm looking to clean/rinse cow dung and do not have any experience doing 
>>> so.  Does anyone have any experience cleaning dung and would like to share? 
>>>  
>>> 
>>> Thank you!
>>> Boston
>>> 
>>> -- 
>>> Boston
>>> Skype: BostonNyer
>>> Cell: (585) 503-3459
>>> www.burndesignlab.org
>>> 
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