Taken on a walk through one of the Binna Burra tracks in South East Queensland. Lamington National Park. Most National Parks use composting toilets (ie: no flushing)
A composting toilet is a predominantly aerobic processing system that treats excreta, typically with no water or small volumes of flush water, via composting or managed aerobic decomposition.1 This is usually a faster process than the anaerobic decomposition at work in most wastewater systems, such as septic systems.
Composting toilets are often used as an alternative to central wastewater treatment plants (sewers) or septic systems. Typically they are chosen (1) to alleviate the need for water to flush toilets, (2) to avoid discharging nutrients and/or potential pathogens into environmentally sensitive areas, or (3) to capture nutrients in human excreta. Several manufactured composting toilet models are on the market, and construct-it-yourself systems are also popular.2
These should not be confused with pit latrines (see latrine, pit latrine, and arborloo or tree bog), all of which are forms of less controlled decomposition, and may not protect ground water from nutrient or pathogen contamination or provide optimal nutrient recycling. (Courtesy of Wikipedia)
Pentax Optio SV