We can’t find out whether industrial civilization or the endless population growth has caused us to face this water crisis: as early as the mid-1970s, due to the serious pollution of many rivers, 70% of the world’s people could not guarantee health and safety. Land water. The increasing scarcity of freshwater resources has caused people to repeatedly focus on the vast ocean. As long as the salty substances that cause the seawater are removed from it, freshwater can be obtained. Malta, in the middle of the Mediterranean, has the world’s largest reverse osmosis desalination plant. The sea water here obediently surrendered and turned into sanitary fresh water, providing faithful services for the 30,000 residents of the island and tourists who come to visit.
The reverse osmosis membrane device has compact structure, simple installation, simple operation, low energy consumption, and can be operated at room temperature, making it easy for industrial production. The key to film making technology is to select the best material to make it suitable for large-scale industrial production. The size of the hole is also an important factor. Only the smallest bacteria and viruses can not pass through it to ensure the purity of the water. The composite membrane invented in the 1980s is made up of ultra-thin reverse osmosis membrane, porous support layer, and fabric reinforcement. It has a great water permeability and a salt removal rate of up to 99%. It is an ideal reverse osmosis membrane. The reverse osmosis membrane is also particularly effective in separating small molecular organic compounds, so it has also been well applied in the fields of organic chemical industry, brewing industry, and waste treatment.