The sixth technology to make it to MIT technology review is Israel’s mega scale desalination project, the world’s largest and cheapest reverse-osmosis desalination plant is up and running in Israel.
Currently some 700 million people worldwide don’t have access to clean water. The number is expected to double in next ten years to come. The main reason being depleting freshwater reserves and decrease in water tables. In such case the only viable solution is seawater desalination. With the depletion of world fresh water reserves, water will be the most demanded utility of future. The issue is taken very lightly by most of the nations, but Israel is at front line in tackling the issue. Currently Israel is getting 40 percent of its water supply from desalination plants operating in the Mediterranean shores of Israel. One the plants in Israel located in Tel Aviv is world’s largest seawater desalination plant, it provides Israel with 20 percent of its water supply for household usage. Along with large capacity, Israel’s desalination plants are among the world’s most efficient Reviser osmosis plants.
Although reverse osmosis is an old technology but the one used by Israeli plants uses modern and advanced material. Along with advanced materials Israelis are using larger pressure tubes, twice the diameter as usual. Which saves a large deal of energy that in terms translates to finances.
Read Also: 10 Breakthrough Technologies – Liquid Biopsy
Reverse osmosis plants are most famous in Middle Eastern countries, in neighborhood of Israel. These countries are paying lots of money for sake of water desalination. But Israel is using a process that save great deal of energy, thus costing a fraction of what is paid normally. According to MIT tech review the desalination plants water profitably to Israeli water authority for just ¢58 per cubic meter, and which is the lowest in the region and around the world.
Israel is working on more plants to increase the water supply form desalination plants, adding up to 50 percent of its water supply.
Though Israel is providing its citizens with fresh and cheap water but it is being criticized for disposing brine back to ocean. Still it remains a matter of debate, whether disposing brine back to ocean causes a threat to marine life or not.