NEUTRALIZING
NEUTRALIZING
AquaCalco® M50 works extremely well for water pH control and wastewater alkalinity control and is a safer option than caustic soda as chemical burns are less likely. Also, using AquaCalco® M50 reduces the cost of operations, especially when larger quantities of materials are used, like in wastewater treatment plants. AquaCalco® M50 is a ready-to-use hydrated lime suspension with a pH value of 12.5. The product can replace one to one caustic soda 50%.
The product can be used in biological treatment both aerobic as well as anaerobic, where the product will have an impact on the pH, on the flock formation of the bacteria, and in the physicochemical applications like flotation or decantation.
METAL REMOVAL
METAL REMOVAL
Industrial wastewater from the manufacturing and the metal finishing industry like anodization, metal-plating, metal-paint shops, etc. often contain high concentrations of heavy metals. The metals are removed by an increase of the pH forming ‘insoluble’ metal hydroxides. These hydroxides will precipitate and will be removed from the water thanks to a coagulation and flocculation process followed by a dewatering of the precipitate. The AquaCalco® M50 in comparison with caustic soda will, besides increasing the pH, also improve the metal hydroxide flock formation, reducing the amounts of coagulants and flocculants needed. On top of this, the precipitations formed with the product will improve the dewatering efficiency, resulting in a better performance of the wastewater treatment plant.
PHOSPHATES, SULPHATES, AND FLUORIDE REMOVAL
PHOSPHATES, SULPHATES, AND FLUORIDE REMOVAL
The most common practice for the removal of fluoride and phosphate is the dosage of iron or aluminum salts. For fluoride from industrial wastewater a calcium source is often dosed under the form of calcium chloride. As these salts are often acid and contain a lot of chlorides, they cause a higher output of chlorides in the effluent. These chlorides are well known as being corrosive for metals and reinforced concrete.
The dosing of AquaCalco® M50 will result in the formation of Calcium fluoride, Phosphate or Sulphates, reducing or replacing the utilization of other chemicals without adding corrosive elements like Chlorides in the wastewater.
