Difference between revisions of "Cartage system"

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! style="background:#ffdead;" | Disadvantages
 
! style="background:#ffdead;" | Disadvantages
 
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| valign="top" | No water required for flushing <br>
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| valign="top" | Not dependent on large, cost-intensive infrastructure.<br>
Easty to construct with local materials <br>
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Source of income for small private entrepreneurs. <br>
May be used indoors
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Potential to link with solid waste collection services.
| valign="top" | The toilet has to be cleaned without using much water.<br>
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| valign="top" | Highly depending on willingness to pay for regular removal of excreta. <br>
Collected excretta have to be handled carefully, as they contain pahtogens.<br>
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Only appropriate for small haul distances and small volumes. <br>
Excreta have to be removed frequently, especially if the toilet is in the house
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Transfer facilities often required. <br>
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Minimising operation costs may lead to uncontrolled disposal of sludge or urine.
 
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|}
  
 
== Costs ==
 
== Costs ==
  
* Unreinforced concrete squatting plate (mass production) US$ 11 (Mozambique,1995).  
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* Investment costs motorised tricycle - About US$ 300 (India, 2005).
* Conrete squatting plate US$ 9-11 (Niger, 1999), based on 40 units.
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* Yearly operation and maintenance costs for the collection of faeces of 8000 households with motorised tricycles (incl. labour costs) - About US$ 2000 (India, 2005).  
  
 
== Applying conditions ==
 
== Applying conditions ==
 
<ul>
 
<ul>
<li>Dry toilets should only be used in rural areas where sufficients space is available at the household level for storage, treatment and use of excreta</li>
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<li>Pushcarts and tricycles are especially appropriate in flat urban areas, with access roads. </li>
<li>Dry toilets are suitable in water-scarce, flood prone regions, and on solid soils</li>
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<li>Pushcarts and tricycles are not appropriate for collecting large volumes (> 300 litre, > 300 kg) or for longer distances.</li>
<li>The system is preferably used with anal wiping (using paper, leaves, grasses, etc. for anal cleaning). However, it can also be used in combination with a special anal washing facility. Washing water should be collected separately as in the Philipines. (See also the description of [[dry urine diversion toilet]].)</li>
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<li>Operators require training and regulation.</li>
 
</ul>
 
</ul>
  
 
== External links ==
 
== External links ==
* General information about Dry toilets [http://www.ecowaters.org www.ecowaters.org ]
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* General information about Waterless urinals [http://www.waste.nl www.waste.nl ]
* Toilet seats [http://www.riles.org www.riles.org ]
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* General information [http://www.bpdws.org www.bpdws.org ]
* Squatting plates [http://www.sanplat.com www.sanplat.com ]
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* General information [http://www.sulabhinternational.org www.sulabhinternational.org ]

Revision as of 12:01, 14 June 2007

Tricycles and push carts can be used to transport containers and oil drums containing urine or excreta. Push carts and tricycles (pedal or motorised) can access small streets. Tricycles can speed up the collection operation and increase the radius of the collection in urban areas, transporting the containers to transfer stations or to community treatment facilities. From transfer stations, urine and excreta can be loaded onto trucks or tractors, which can haul a larger volume over a long distance. Tricycles can collect door to door, although urine can also be collected in larger containers serving a number of houses.

Cartage system, motorized tricycle in India (for credits, click the picture)
Advantages Disadvantages
Not dependent on large, cost-intensive infrastructure.

Source of income for small private entrepreneurs.
Potential to link with solid waste collection services.

Highly depending on willingness to pay for regular removal of excreta.

Only appropriate for small haul distances and small volumes.
Transfer facilities often required.
Minimising operation costs may lead to uncontrolled disposal of sludge or urine.

Costs

  • Investment costs motorised tricycle - About US$ 300 (India, 2005).
  • Yearly operation and maintenance costs for the collection of faeces of 8000 households with motorised tricycles (incl. labour costs) - About US$ 2000 (India, 2005).

Applying conditions

  • Pushcarts and tricycles are especially appropriate in flat urban areas, with access roads.
  • Pushcarts and tricycles are not appropriate for collecting large volumes (> 300 litre, > 300 kg) or for longer distances.
  • Operators require training and regulation.

External links