Using Calcite / Limestone in Desalination Treatment / Water treatment for saving and small environmental footprint
A commonly used remineralization process involves bringing CO2-acidified desalinated water in contact with a bed of limestone. Dissolution of limestone provides two essential ingredients to the water: bicarbonate alkalinity and calcium content. The kinetics of limestone dissolution with CO2 was studied as a function of inlet CO2 concentration, water flow velocity, and temperature
Targets for remineralization
When designing remineralization systems and determining the appropriate water quality targets, a handful of key parameters are taken into consideration: alkalinity, calcium hardness and pH. The importance of these parameters are discussed further in detail in the following sections.
1. Importance of alkalinity
Alkalinity is one of the most important water quality parameter due to its ability to maintain a stable and buffered system, as well as its effectiveness in protecting against various mechanisms of corrosion. In general terms, alkalinity is defined as the capacity of an aqueous solution to accept a proton, or rather to neutralize an acid
2. Importance of calcium
Next to alkalinity, calcium hardness is the most important parameter for post-treatment process for a number of reasons. Firstly, it is the most suitable counter-ion to the anionic alkalinity species. Secondly, it is the concentration of calcium ions in addition to alkalinity and pH that defines the calco-carbonic equilibrium of the water. Finally, calcium has a number of health benefits to the consumer, with increased calcium levels within drinking water being linked to decreased incidences of cardiovascular disease.
3. Importance of pH
pH is the final parameter that is considered for determining quality as part of post treatment processes. The desired target pH is often determined as a by-product of the previously mentioned parameters: alkalinity and calcium content.
VIET NAM TECHNOLOGY MINERAL JOINT STOCK COMPANY is the manufacturer and exporter of Calcite / Limestone product that suit for Desalination process. Our product is certificated by Spain Laboratory, recommended to use for Remineralisation of Desalinated Water
VIET NAM TECHNOLOGY MINERALS JSC - SHC GROUP
Mr. Steve (Sales Manager - Minerals Divisions)
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