Rodleroc Posted October 8, 2009 Share Posted October 8, 2009 Hi everyone, I'm a graphic design student currently in the final year of my degree and I'm doing some research into the problem of public urination. One of my initial ideas was to use collected urine for perhaps fertiliser, but I was wondering if anybody could help me come up with any ideas. Any help would be most welcome... as you might have guessed I'm a layman, I don't even know if 'Organic Chemistry' is the right category for this... Hoping you can help, Rob. Link to comment Share on other sites More sharing options...
Horza2002 Posted October 8, 2009 Share Posted October 8, 2009 If you wanted to do that, then you'd have to extract the urea from urine before letting the bacteria break it down into ammonia for fertiliser. Extracting it from all the other unwanted materials and getting it to a level legally required could be a problem. Other uses it could used as a disinfectant and as a mild bleaching agent. Link to comment Share on other sites More sharing options...
insane_alien Posted October 8, 2009 Share Posted October 8, 2009 forget all that, first you need to collect the urine. and as most public urination is done by the inebriated down alleyways and in door ways thats going to be pretty hard to do. whatever you do, it would be far far more cost effective to simply produce the required chemical through industrial chemistry. Link to comment Share on other sites More sharing options...
UC Posted October 10, 2009 Share Posted October 10, 2009 Other uses it could used as a disinfectant and as a mild bleaching agent. What? Link to comment Share on other sites More sharing options...
gbg112 Posted November 7, 2009 Share Posted November 7, 2009 What? Urea break down into ammonia which was and is still used in bleach. Link to comment Share on other sites More sharing options...
Fuzzwood Posted November 7, 2009 Share Posted November 7, 2009 No it is not. Hypochlorite is used in bleach. Link to comment Share on other sites More sharing options...
Phi for All Posted November 7, 2009 Share Posted November 7, 2009 Urea break down into ammonia which was and is still used in bleach.If you mix ammonia with bleach you liberate chlorine gas which will cause massive cellular damage if you breathe it in. And there are even worse reactions depending on the mixture. Never, ever do this in an uncontrolled environment. Link to comment Share on other sites More sharing options...
Fuzzwood Posted November 7, 2009 Share Posted November 7, 2009 No you will liberate chloramine: NH2Cl, which is also toxic while inhaled. http://en.wikipedia.org/wiki/Chloramine Link to comment Share on other sites More sharing options...
Phi for All Posted November 7, 2009 Share Posted November 7, 2009 No you will liberate chloramine: NH2Cl, which is also toxic while inhaled. http://en.wikipedia.org/wiki/Chloramine My mistake. And the BBC's as well, apparently: That warning is there to protect you. Household bleach has a chemical formula of NaOCl - that is, one atom each of sodium, oxygen, and chlorine. Its chemical name, for the curious, is sodium hypochlorite. Ammonia has a chemical formula of NH3, that is, one atom of nitrogen and three atoms of hydrogen. When these two compounds are combined, the following reaction takes place: 2(parts)NaOCl + 2NH3 --> 2NaONH3 + Cl2. Do you see that Cl2 on the right hand side there? This means one part chlorine gas, made up of diatomic (two atom) molecules. It also means that the chlorine gas has been liberated from the bleach, and is quite capable of causing you harm when inhaled! http://www.bbc.co.uk/dna/h2g2/classic/A795611 Link to comment Share on other sites More sharing options...
hermanntrude Posted November 7, 2009 Share Posted November 7, 2009 the general gist is that you shouldn't mix things with bleach. it's very reactive and many of its reactions will liberate dangerous fumes. Link to comment Share on other sites More sharing options...
John Cuthber Posted November 7, 2009 Share Posted November 7, 2009 wtf is NaONH3? Link to comment Share on other sites More sharing options...
Fuzzwood Posted November 7, 2009 Share Posted November 7, 2009 My mistake. And the BBC's as well, apparently: http://www.bbc.co.uk/dna/h2g2/classic/A795611 You are taking a news site serious? Link to comment Share on other sites More sharing options...
John Cuthber Posted November 7, 2009 Share Posted November 7, 2009 It's not even the BBC's news site. Link to comment Share on other sites More sharing options...
Phi for All Posted November 7, 2009 Share Posted November 7, 2009 I have to admit that I've heard in the past that mixing bleach and ammonia released chlorine gas, and when I googled to get a source, the beeb popped up first. Even though it's from their H2G2 section, I assumed the BBC would check with their science types for data like this. As I said before, my mistake. Link to comment Share on other sites More sharing options...
Capita Posted December 13, 2009 Share Posted December 13, 2009 it can yield chlorine gas or chloramine and there was one other gas that could be made but I dont remember off the top of my head but any way it depends on the environment temp pressure bleach/ammonia molar ratio ect but you generally end up with a mixture of all of them not shure of the amounts Link to comment Share on other sites More sharing options...
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