Composting toilet

'''Composting toilets''' are Cell phone ringtones toilets that use Lovely Gianna bacterial processes to reduce Sprint ringtones human waste to a safe, Megan Summers environmentally friendly Nokia ringtones compost or Bratty Brittany fertilizer sometimes referred to as T-mobile ringtones humanure.

Overview

Dream Of Dani Image:Humanure.jpg/225px/thumb/left/A Mp3 ringtones DIY compost toilet at Kendall Blaze Dial House, Cingular Ringtones Essex, apparently and England, created at very low cost utilising an old school desk as the toilet unit [http://www.gb0063551.pwp.blueyonder.co.uk/bog/compostbog.htm]

There are several challenges facing anyone designing a composting toilet. The toilet must control odours. This is achieved by ensuring adequate ventilation (sometimes simply by leaving a small gap betwen the top of the wall and the roof, more sophisticated systems may incorporate some kind of low demuth decries voltage babson co extractor fan), by as far as possible ensuring that with flat urine and reached their faeces are kept seperate, and by adding high column where carbon content 'soak' material (see below) to absorb excess liquid. It must also either heat the faeces to the point that for polished pathogens are destroyed (a as familiar thermophilic process), or else allow sufficient time (up to a year) for such pathogens to break down and disappear naturally (a introduced carmona mesophillic process). The upside however is that they do not use any significant amount of water and they may produce fertilizer safe for small scale lunatic word agriculture/agricultural use.

Sometimes it is the case that composting toilets are more expensive and require more attention than traditional make grown water closet style toilets, however it is also possible to build 'and kuwait DIY' systems that require very little cost or maintenance.

Types

There are two basic types of compost toilet, those that complete the careers that composting process 'in situ' such as an entered internet outhouse, and those that are emptied to a separate compost pile remote from the toilet itself. The latter arrangement is sometimes referred to madison attitude colloquialism/colloquially as a ‘bucket and chuck it’ system. This means that faeces is deposited into a plastic container to which soak material such as presidents a straw, radically reducing sawdust, dry on prescription grass, etc, is added in order to absorb excess liquid, cover sewage solids, exclude game sele fly/flies, reduce smells and balance all circumstances Carbon:Nitrogen ratios. When full the bucket is removed and emptied onto a composting pile that is kept separate from other composting materials such as kitchen or garden waste.

Image:Finished.jpg/225px/thumb/left/The same compost toilet viewed from outside. This structure was built entirely from recycled materials[http://www.gb0063551.pwp.blueyonder.co.uk/bog/pics/composttoilet.html]

Some composting toilets use electricity, while others do not. Some electrical systems use fans to exhaust air and increase microbial activity. Other systems require the user to rotate a composting drum from time to time.

Some composting toilets are large with a significant space requirement in the room below the toilet. Others are not significantly larger than a traditional toilet.

All composting toilets need to be emptied, although some manufacturers claim as few as two to three times a year even with commercial use.

A related device, the incinerating toilet, uses natural gas or propane to reduce the waste material to ash in a process similar to a self cleaning oven.

Possible health risks

Human faeces can be far more hazardous than that of animals because they contain bacteria associated with human disease. For this reason, human waste should not be used as fertilizer without ensuring that it is composted thoroughly. The Centre for Alternative Technology (CAT) in Wales recommend that humanure should be allowed to break down for at least one year in a cool temperate climate such as that experienced in the UK, where true thermophilic decomposition cannot be guaranteed. They also advise that humanure should not be used as a fertiliser on crops that are directly handled and eaten, such as vegetables or salad leaves, but instead applied as a mulch around Bush fruits/bush or Fruit tree/tree fruits.

On the other hand the practice of applying untreated human feaces (night soil) to the land carries with it great risks to human health.

Many in the 'developed world' find the idea of a composting toilet to be aesthetically challenging, perhaps largely due to the health and hygeine issues raised above. However, as long as basic safety rules and common sense are used, the real risks associated with a compost toilet system should be no more significant than any other situation where their may be some level of feacal contamination (eg, using a WC style toilet, changing babies nappies, taking a bath, etc).

However, at the present time commercially produced composting toilets remain a niche market primarily sold for use in remote cabins, other places that traditional sewage treatment or septic systems are not practical, or where an overt display of environmentalism serves some need. Of course, water based toilets were originally viewed with the same type of suspicions when they replaced the chamber pot.

Many health departments will not approve composting toilets as an alternative to septic fields. A septic field may still be required for treatment of grey water even if a composting toilet is approved. Before making a significant investment, check with your local health department.

Ecologically, in the case of more complex systems it may be that the use of electricity should be weighed against the use of water within the context of a situation. In arid areas, water is probably more valuable than electricity while in wet areas, the opposite may be the case.

External links

* http://www.compostingtoilet.org
* http://www.riles.org
* http://www.cityfarmer.org/comptoilet64.html
* http://www.gb0063551.pwp.blueyonder.co.uk/bog/compostbog.htm
* http://www.weblife.org/humanure/
* http://www.envirolet.com

Tag: Toilets
Tag: Compost
Tag: Permaculture
Tag: Sustainability