Do you know where ends human waste once you flush the water? In Slovenia on average, it travels 30 kilometers to the treatment plant. It uses around 6 liters of drinkable water per flush and during the transportation is mixed with chemicals and other waste from households and industry. The construction of the whole sewage system, maintenance, depreciation and wastewater treatment on average costs in Slovenia around € 860 per capita per year.
Is it something wrong with such comfortable flush toilets? We do our “need”, flush the water, and the job is done for us. Why change the system if it works flawlessly? Because it’s energy, water and financially demanding. In the future will be lack of drinking water and sustainable technologies will prevail. So we conclude that such sanitary facilities will no longer be available in 2060.
What are the other options? Latrines are today legally prohibited because fresh feces directly contaminate groundwater and soil with pathogenic bacteria. We have all very negative feelings on chemical toilets. Are any other solutions?
Human “waste” transformed into a valuable product – THE PERFECT NATURAL CYCLE.
On the market are appearing ecological, nature and human-friendly alternatives they called composting dry toilet. These do not use water or chemicals. The name derives precisely from the fact that human “waste” is processed directly into compost, and can be reused as fertilizer. The feces have further advantages as they are high in energy value and can be used as fuel. Given all the above, it’s hard to say that our feces are a waste.
Feces can be reused as fertilizer or fuel so it’s not a waste. By Slovenian law, pure feces and pure urine are not recognized as waste. But when it’s mixed with water it becomes black water and needs treatment. Composting toilets are from that point of view completely zero waste.
The most frequently asked question is: “Does it smell?”. The answer is NO. Otherwise, in most cases this fact no one believes until you do not sit down on the toilet. There are several types of composting toilets. The most common is to collect urine and feces in the same reservoir. After each use, sprinkle dry material based on carbon (sawdust, dry leaves, hay, straw, also dry soil, etc.), Which absorbs urine and all the moisture from the feces itself. Thereby preventing the formation reaction of the gases in contact with oxygen. The sludge, when the loss of over 20% of moisture, does not smell anymore. If you have a dog, let his excrement in the garden for an hour to the sun. After this time it will no longer stink.
Your wallet and nature will APPRECIATE
The entire process of composting takes place locally and does not require a sewer and/or water system. That’s the biggest advantage. Your feces do not need large amounts of water, do not travel more kilometers and you do not make additional cost.
The collected organic material processed on the site and it is recommended that the site also re-uses it. So we provide the circulation of material in our surroundings. As nature itself, everything is recycled, so they should also allow people as the appropriate circulation of substances in nature. This gives a by-product that we know where it came from and, consequently, gives added value in the form of fertilizer. Some of the people around the world keep warm with dry feces.
Composting toilet saves us huge amounts of drinking water and the cost for sewage expenses or for emptying of cesspools. It can save us also expenses for hitting. Because technology doesn’t need transport and energy for the processing of contaminated water we also reduce greenhouse gas emissions. So, with your own composting toilet we become partially independent of public services and contribute to a healthier environment.
Where are they already being used TODAY?
The solution is particularly suited for locations where there is no water and sewerage infrastructure. Can we use it on protected coastal areas, mountains, off-grid cottages, at the urban gardens, etc. We believe, however, that such toilets appeared also in urban areas.
Currently, the most widespread use of the composting toilets is in eco-villages. The entire community uses different compost toilets, where their droppings are processed locally.
Scandinavian countries use similar versions in their weekend cottages. They accepted this kind of toilets since the early 90s since the awareness is much higher. Aware of the advantages of such toilets so they are industry leaders.
But a growing number of eco-enlightened Europeans decide for this sort of toilets, mostly on weekend houses and gardens, more and more as well as in their own homes. A growing number of local municipalities in Europe decided to install the city’s parks and natural areas with such toilets. A large increase in this type of sanitation in Europe is in France, the United Kingdom, the Netherlands, Belgium, and Germany. Even emerging companies that provide rental of wooden compost toilets. Fortunately, we have also a company in Slovenia, Kakis d.o.o. Read here were KAKIS already put their toilets.
Slovenian poet Srečko Kosovel in his song Kons.5 wrote:
Manure is gold
and gold is manure.
David is a CEO of KAKIS & houzEKO and development manager at Institute mOBILNO to go. He is by profession a civil engineer but he soon decided to start his own path in sustainable and cleantech technologies.