Treatment of reservoirs and surface water
Many surface water bodies and reservoirs around the world suffer from water quality problems. Global warming and rising temperatures, together with high concentrations of nutrients and pollutants transported from surface runoff, accelerate the development of algae and microorganisms in surface water. This phenomenon causes a decrease in the oxygen concentration (DO) in the water, which is reflected in the acceleration of the blooms of algae, some of which are toxic, and the formation of zooplankton, which leads to damage and pollution to the water bodies. In many bodies of water and lakes around the world, the phenomenon has reached the point of inability to supply the water for drinking or irrigation purposes and has harmed fisheries and vegetation. The indirect damages are both an environmental damage of decrease in the quality of life near the surface water bodies due to odor hazards and damage to visibility and landscape, as well as economic damage to the livelihood of entire areas that were based on the lake for tourism, agriculture and more.
A similar phenomenon occurs in wastewater effluent reservoirs. These reservoirs, in which wastewater containing relatively high nutrient concentrations are stored for many months, suffer from the development of algae and zooplankton. This phenomenon leads to damage to the quality of the effluent, both from the operational and sanitary aspects. This is reflected in significant blockages of the filtration and irrigation systems and in extreme cases to the point of shutting down the entire irrigation system. Conventional methods of treating the problem are based on combined treatment using chemicals to spread reservoirs and disinfect with high concentrations of chlorine when pumping effluents for irrigation. It is understood that the damage is twofold – both the insertion of chemicals into the effluents and high costs for treatment that does not always succeed.
The use of nanobubble technology combined with ozone provides an efficient and quick solution to the problem of water quality in surface water bodies and reservoirs. Thanks to the special properties of nanobubbles: tiny negatively charged gas bubbles with a high surface area, slow floating speed, high ability to transfer ozone or oxygen to water and long-term stability in water, the oxygen concentrations in the water increase, leading to rapid damage to the algae and Zooplankton population. Studies show that due to the high resistance of nanobubbles, their effect is long-term and sometimes even allows the decomposition of sludge and sediment at the bottom of water bodies, which in themselves have a negative impact on water quality. The ozone combination also leads to a reduction in the amount of disinfectants chemicals for irrigation purposes and a significant financial saving.
The unique technology developed by Nano+ for treating surface water and reservoirs is based on an innovative, powerful and durable floating system. This technology has been successfully implemented for several years in bodies of water and reservoirs in Israel and England.
