○Bio-Gas Toilets

     For the treatment of toilet waste, a bio-gas toilet with a biomass generator is utilized, producing gas, electricity, or hydrogen. Rainwater tanks are installed in residences for use in flushing toilets, bathing, hot water, and laundry. With the looming issue of dwindling water resources, this practice also aims to reduce the use of water from rivers and lakes.

    Moreover, using toilet paper made from natural plant materials like bamboo that decompose naturally is recommended.

    It's essential to note that concerning bio-gas toilets, care should be taken regarding the positioning and facilities to prevent methane gas from the purification tank leaking into indoor spaces. There have been incidents of methane causing fires or explosions due to sparks from electrical circuits.

    During disasters such as earthquakes, the availability of toilets becomes critical. While flush toilets can function without electricity, water supply disruptions can prevent flushing. Therefore, ensuring the manual transfer of waste to a septic tank can resolve toilet shortages during disasters.

    If bio-gas toilets aren't feasible, considering bio-toilets is an option. These toilets use a container filled with bamboo powder or sawdust, promoting decomposition and composting of waste. Bio-toilets operate without water and don't require flushing. The internal bamboo powder needs periodic replenishment or replacement. Bio-toilets adopt a system of separating solid and liquid waste. This is because excessive moisture hampers fermentation and results in odorous urine. Additionally, the toilet container is heated using solar energy to facilitate decomposition.

    Infant and caregiving disposable diapers are made by harvesting forests. Incinerating used wet diapers requires higher heat, resulting in increased carbon dioxide emissions. Therefore, cloth diapers become the primary choice. Natural materials are preferred to avoid potential itching caused by synthetic fibers. Given that residences accommodate infants, seniors, or individuals requiring care, every household is equipped with a small washing machine and washing area for cloth diapers. The wastewater from this process also follows the natural percolation drainage method.

    Regarding waste management, in a self-sufficient community like Prout Village, supermarkets and convenience stores are absent, reducing non-biodegradable waste like plastic bags, bottles, cans, and non-biodegradable containers or packaging. Consequently, only organic waste and biodegradable containers remain. Primarily, this waste is processed through bio-gas toilets, where it's broken down and converted into energy. If this isn't feasible, composting is employed, following the same principle as bio-toilets, mixing with bamboo powder or sawdust to decompose with the aid of microorganisms.

    Thus, household wastewater, excreta, and food remnants are processed within each residence. Treating wastewater through self-processing returns it to the land, maintaining rivers and seas in a clear, drinkable state, allowing aquatic life to thrive in their natural abundance.