Micro-nano flotation technology is a solid-liquid separation technology based on micro-nano bubbles. This technology generates a large number of micro-nano bubbles in water through specific equipment and methods. These micro-nano bubbles have a high surface area to volume ratio and can more efficiently attach to suspended matter, grease and other pollutants in the water, thereby bringing them out of the water surface and achieving solid-liquid separation.
Technical advantages Improve the removal rate of suspended matter: Micro-nano flotation technology can generate a large number of micro-nano bubbles, which have extremely high adhesion and can effectively attach to suspended matter in the water. Therefore, compared with traditional flotation technology, micro-nano flotation technology can more efficiently remove suspended matter in water, including fine particles, grease, etc.
Micro-nano flotation technology can not only remove suspended matter in water, but also promote the decomposition of soluble pollutants and remove harmful substances in water through the oxidation of micro-nano bubbles. This comprehensive purification effect makes micro-nano flotation technology perform well in sewage treatment.
Selection parameters Application scope 1. Heavy metal ions in electroplating wastewater.
2. The COD removal rate of food slaughtering and leather making wastewater is about 70%, and the suspended solids removal rate is about 90%.
3. The oil content in oil refining wastewater can be reduced to below 10mg/l, and the clarity of wastewater can reach the level of chemical wastewater and pigment paint wastewater, with a COD removal rate of about 74% and a chromaticity removal rate of about 93%.
4. The fiber recovery rate of papermaking white water can reach about 95%, the COD removal rate can reach about 86.7%, and the water can be fully reused.
5. The turbidity of large pool bathing water can be stabilized below 10 degrees, the bacteria in the water have decreased significantly, and the turbidity of drinking water and industrial water can be purified to below 5 degrees, which has a good effect on reducing the chromaticity oxygen consumption.
6. The above data are empirical values, for reference only, and the actual effect shall prevail.
Some case studies
Shandong Longantai Environmental Protection Sci-tech Co., Ltd., established in 2005, focuses on energy-saving and compliant treatment of industrial wastewater, wastewater recycling and reuse, and wastewater resource and energy recovery. The company provides high-value comprehensive solutions and key equipment. It integrates research and development, manufacturing, process design, project construction, and water services operation. Longantai has strong capabilities and a complete quality system in the R&D and manufacturing of water treatment catalysts, critical water treatment equipment, wastewater resource recovery equipment, and industrial energy recovery equipment.
Longantai company provides high-value-added comprehensive energy-saving and emission reduction solutions in major technological and engineering applications such as industrial wastewater, refractory wastewater, high-salinity wastewater, high-concentration wastewater treatment, energy-saving upgrades for wastewater treatment standards, wastewater recycling and reuse, and water quality improvement for rivers and lakes. These solutions effectively improve resource utilization, reduce enterprise costs, and contribute positively to green, low-carbon, and high-quality development.
Longantai places great emphasis on the role of research and development in its growth. The company currently holds over 50 invention patents, more than 10 utility model patents, 1 design patent, 1 first prize for provincial-level scientific and technological progress, and 1 first prize for scientific and technological progress from the China Environmental Protection Industry Association. Longantai has established industry-academia-research collaborations with several top domestic and international universities and research institutions. Over the years, the company has been recognized with numerous honors, including National High-Tech Enterprise, National "Little Giant" Enterprise for Specialized and New Technology, Provincial Gazelle Enterprise, Provincial Specialized and New Technology Enterprise, Provincial Manufacturing Champion, Provincial Innovative Small and Medium-Sized Enterprise, Hidden Champion Enterprise, Provincial "One Enterprise, One Technology" R&D Center, and Provincial Industrial Design Center.
Longantai is a leading domestic provider of water treatment solutions, a manufacturer of critical water treatment equipment, and a water services operator. The projects it has served have received extensive coverage from numerous mainstream media outlets, including China Environment News, Xinhua News, Phoenix News, Sina, and various provincial TV stations.
Longantai is a collaborative and open platform with a comprehensive innovation system, mature practical technologies, and advanced manufacturing expertise. It brings together a team of passionate, responsible, grateful, and ambitious professionals. As Longantai continues to grow, it is eager to collaborate sincerely with partners worldwide, working together to contribute to the protection of the environment and the pursuit of sustainable development for humanity. With the mission of "developing energy-efficient and resource-sustainable environmental technologies and equipment for our customers," Longantai strives to fulfill its dreams and responsibilities with gratitude. With humility and dedication, the company aims to work alongside friends from all sectors to safeguard our clear waters, blue skies, and peaceful, harmonious homeland.