Chemical for Use in Toilet System Design

Chemical toilets are already available and instead of reinventing the wheel you should concentrate on improvements.

Your solution must also attempt to work with nature and not against it. By binding it in a solid form might be counter productive because it may prohibit the natural biodegrading processes.

As for the droppings along railway lines. In arid countries with small volumes of traffic the stuff dries out quickly and disappear.

The current water transport system for sewage in urban areas needs a big change.

A lot of purified water is used.

The water care works cannot cope with volumes.

The result is direct polluting spills.

Thanks for the reply.

But if i could see what chemical and what mechanism it works upon, may be i could make it cost - effective and implementable in developing countries. For a massive organisation like Indian Railways Cost is what matters when it comes to changing some existing system.

Please throw some light on the chemical or mechanism used or atleast where could i find info regarding this..?

My idea is to convert the excreta into solid mass, then add further chemicals to convert into manure. if the process is cost effective it will be a boon to agri -dependant countries.

Off topic

Kar, you've been posting similar, if not the same questions, on several sections. If you're not sure where to post your question, just make a guess and post it once.

Don't worry that people might not see your question. We'll see it alright. Even if you post it on the wrong site, the administrators will transfer your question themselves. There's no charge for that.

On topic

I admire your desire to solve the problem with waste disposal on the Indian railways. However, what you're researching about (water use reduction in toilets) has already been researched by others. Instead of reinventing, try to look for these solutions and propose them to the Indian railway companies.

For information, the trains used in the Channel Tunnel have retention toilets.

send it thru the boiler's afterburner.. cheaper by far, it can be reduced of water using exhaust scavenged heat then burnt in a secondary firebox..possibly releasing more heat energy than is consumed. Jsta cat

In the marine industry a vacuum system is used to excavate the bowl, with very little usage of water, and then chlorine treated before disposal. Use of chlorine may not be advisable on trains, but as little or no water is used, this allows solids to be stored in the vacuum tank to be later disposed of. So I advise that possible looking under ship sewage systems might help?

what other railways (european , uk, us ) are doing? . Convert the excreata into manuer (bio fertiliser ) in slurry from and dispose them to nearby farms by haulting the trains for 10 mins. This will benefit the cleanliness, improve eco system, will improve health of the railway track inspecting personell and will improve brand of India and Indian railways. I heard of some bacterias which convert the human excreata fastly into fertilizer. u may contact SULABH International organisation. sadu.deshpande@gmail.com