Limits for drinking water: 0,2 mg/l
- Without color, taste or odor
- If present in infusions and intravenous solutions, it increases the risk of Alzheimer’s and Parkinson’s disease
- Toxic for fish and plants
Removing aluminum from water
- Solution principle – precipitation and filtration, ion exchange, adsorption, reverse osmosis
Natural aluminum (aluminum is the third most common element in the earth’s crust) is relatively insoluble, and usually occurs in water in under-limit quantities. The cause of increased concentrations can be industrial waste water or acid rains and acidic groundwater that can leach it from the rocks.
For humans, aluminum is dangerous only when it enters directly into the bloodstream. All intravenous solutions thus have a stricter limit (0.010 mg/l). When ingested, aluminum does not pose a significant hazard, and is commonly used as a precipitating agent for the treatment of drinking water.
Due to low solubility, aluminum can easily be removed by adjusting the pH for precipitation and subsequent filtration.