Water supply and sanitation
No more water down the drains
Modern purification technology can turn household wastewater into drinking water. This is impressive enough by itself. But wastewater can also be used to produce biogas if combined with household biowaste. SymbioCity helps you unlock the synergies between urban systems.
Seeing the bigger picture
We tend to regard sewage water as waste. But there is a bigger picture that offers great potential. Identifying and unlocking the synergies between water use and other urban systems is not only good for the environment but can be highly profitable, too.
Wastewater as a resource
Grey and black water mixed with household biowaste can be used to make biogas for use as vehicle fuel or in heating and electricity generation.
The bioresidue left after fermentation to biogas is an agricultural nutrient that can reduce the use of artificial fertilizer.
Digestion of biodegradable waste, septic sludge, wastewater sludge and similar products may also be a feasible option for small-scale energy production.
Cooperation is needed
We need effective cooperation between water supply authorities and agencies in charge of sanitation and wastewater management to get the most from our water supply and sanitation sector. Drinking water sources are all too often polluted by wastewater, sludge and toilet waste.