Inorganic ingredients
Depending on the type of geology through which the water flows within the water cycle, it contains different quantities of sodium, potassium, calcium, magnesium, iron, manganese, copper, zinc, chlorides, fluorides and sulphates as well as nitrates, nitrites, phosphates and silicates.
Organic ingredients
Organic ingredients can be of natural origin, e.g. humic acids. They are, however, also caused by human beings. Organic and inorganic harmful substances enter the water circuit from different sources. They may not all be removed through conventional sewage purification and may cause damage to our ecosystem.