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Benefits

Dry toilets offer a sustainable alternative to the currently dominating sanitation method that uses large volumes of drinking water and requires important inputs of energy and chemicals to treat the sewage.

Dry sanitation contributes to the restoration of the natural nutrient cycles without external inputs of water or electricity and without pollution. The owner of the dry toilet will benefit from lower investment in wastewater treatment systems and reduced operating and maintenance costs.

 

WATER CONSERVATION

Dry toilets allow substantial savings in water, as approximately 20 to 30% of the domestic water use corresponds to toilet flushing.

RESILIENCE

The operation of dry toilets does not generally depend on drinking water or power supply and therefore they can be used normally even if the supply of water or electricity is interrupted due to a natural hazard or any other reason.

CLOSED NUTRIENT CYCLE

Urine is an excellent fertilizer for the garden due to its nitrogen and phosphorus content. On the other hand, feces are rich in organic matter and can be used as a soil conditioner after composting. By reclaiming these natural resources, the use of chemical fertilizers can be reduced and the associated environmental issues avoided.

SIMPLE INSTALLATION

Dry toilets are simple to install as they do not require a water supply line or a sewer. They can also be installed outdoors as there are no pipes or other elements that could freeze during the winter months.

LOW CARBON FOOTPRINT

The composting toilets have a very low carbon footprint, among other things because their operation and the toilet resource treatment do not require external inputs (electricity, water) and because they do not emit greenhouse gases (in contrast, for example, to methane emitted from septic tanks).

COMPLIANCE WITH THE SEWAGE DISCHARGE RULES

The compliance with the sewage discharge rules can be reached by combining dry toilets with an adequate greywater treatment, as the major part of the contaminant load (solids, organic matter, and nutrients) in typical household wastewater corresponds to the black-water from toilet flushing.

POLLUTION PREVENTION

Dry toilets do not generate contaminating sewage water and therefore they help to protect the valuable and limited surface and groundwater resources.

COST SAVINGS

The installation of dry toilets combined with greywater treatment is the most economical solution for on-site sewage treatment, resulting in savings of 20- 60% in the total system cost including installation, use, and maintenance (Savonia University of Applied Sciences 2012. See report).

In SANESECO, we can quantify the potential benefits derived from the installation of dry toilets in each case, including the conservation of resources, cost savings, etc.

 

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