Sea water Desalination

Nowadays, desalination has become a very affordable solution to process with fresh water shortage typically in tropical domestic as well as of off-shore areas.

The desalination core processes is based on Reverse Osmosis Membrane technology, but stand alone, it doesn’t provide safe drinking water, nor does it guarantee an efficient plant.

Waste water treatment

Biological wastewater treatment processes are primarily designed for the removal of dissolved and suspended organic matter from wastewaters. The environmental conditions are optimized to encourage growth of the micro-organisms which use the organic compounds as substrate.

Biological wastewater treatment is also capable of removing other wastewater components, including suspended solids, nitrogen, phosphorus, heavy metals and xenobiotic.

In general the biological wastewater treatment is the most efficient and economical way of removing organic pollution from a wastewater.

Nitrates removal

Nitrates level in drinking water is recommended below 50 mg/L, specially for babies. Indeed, their digestive systems are immature, and thus more likely to allow the reduction of nitrate to nitrite. The nitrite in the digestive tract of babies can cause methenoglobinemia.

Nitrates can be removed by ion exchange using strong anionic resin in Cl- form.
Reverse Osmosis is also efficient to removal nitrates, although the hydrophilic properties of the molecule do not allow an optimal removal.

Water softening systems

Hardness in water is caused by certain salts. The main hardness causing ions are Calcium (Ca2+), Magnesium (Mg2+) and Bicarbonate (HCO3-). These ions or minerals are normally addressed as scale in the water causing Scaling of pipes and equipment in drinking water and process water systems. Softening units offer a water purification solution for hard water and lime scale removal. In many applications, e.g. the preparation of drinking water , water in breweries and sodas, but also cooling water and boiler feed water, the hardness of the water is of importance.