Membrane separation technology is used across a range of engineering applications in the world today. It involves the selective transport and separation of substances through the use of a membrane.
Membrane separations are classified by pore size and by the separation driving force. These classifications are: Microfiltration (MF), Ultrafiltration (UF), Ion-Exchange (IE), and Reverse Osmosis (RO).
Moving Water has a complete range of membranes for different applications including
Applications
Reverse osmosis has become a popular membrane separation technique for the water treatment industry and Moving Water has experience and demonstrable success with its application. It involves the removal of large molecules and ions from solutions using a semi-permeable membrane. This membrane lets the fluid flow through while dissolved solids stay behind. Reverse osmosis is mainly applied during drinking water preparation and for the production of ultra-pure water for the pharmaceutical industries and boiler feed water.
Clarification is the removal of suspended solids and particulate matter including sediments, oil, natural organic matter and colour from the water to make it clear. Clarification occurs in combination with coagulants and flocculants to improve settling.
Moving Water offers Dissolved Air Flotation (DAF) techniques to clarify wastewater.
Applications of clarification techniques
Moving Water sources a range of Activated Carbon, which is powdered into the following base materials:
Filtration occurs after clarification to remove any remaining suspended particles, organic and micro-pollutants and heavy metals that are not removed by the clarification process.
Filtration techniques are applied to the following:
Desalination is a solution that is perfect for the many barren regions of sub-Saharan Africa. With the growing strategic importance of coastal towns and port cities, desalination is a vital technology for water treatment in these urban zones.
It involves using membrane technology to remove salts from water to produce potable drinking water.
In addition desalination can be used within industry for:
Moving Water’s ultraviolet water purification systems are simple to install and require little supervision, maintenance or space.
UV lamps are simply replaced when they burn out.
Ultraviolet (UV) water purification systems and water treatment is used as a pre-treatment or polishing step to sterilise and disinfect water, particularly water supply that is considered biologically unsafe (lake or well water).
The ultraviolet water treatment process is a non-chemical method for destroying micro-organisms by altering their genetic material, and rendering them unable to reproduce.
Ion exchangers are used to remove salts from water. Ion exchangers consist of a resin containing acidic and basic molecules. These exchange with the anions and cations that form the salt, effectively removing them from the water.
Moving Water provides a comprehensive range of ion exchange solutions and services including ion exchanger valves and spare parts, a selection of high grade resins, and pre-packaged ion exchange units.
Ion exchange processes are used for:
Treatment enables impure water to be re-used and improves the quality of effluent being released into the environment. This allows municipalities and industries to save on compliance and water costs, while at the same time encouraging the development of a healthy, efficient biomass.
Biological processes are used to treat wastewater through anaerobic and aerobic digestion processes of micro-organisms. These naturally break down and absorb the organic matter carried in wastewater to produce biogas, heat and compost.
Biological processes are used to treat sewage, sludge, municipal and industrial wastewater. Moving Water also uses biological process to treat aquariums and fish ponds.