Flotation machines use various technical methods to separate, remove, recycle, or convert pollutants contained in sewage and wastewater into harmless substances to purify the water. Flotation machine sewage treatment technology can be divided into three categories according to the principle: physical treatment, chemical treatment and biological treatment.
1. Physical treatment method: Use physical action to separate suspended solid pollutants in sewage. Methods include: screening, sedimentation, flotation, air flotation, filtration and reverse osmosis.
2. Chemical treatment method: Use the action of chemical reactions to separate and recover pollutants in various forms (including suspended, dissolved, colloid, etc.) in sewage and wastewater. The main methods include neutralization, coagulation, electrolysis, oxidation-reduction, stripping, extraction, adsorption, ion exchange and electrodialysis.
3. Biochemical treatment method: Use microbial metabolism to convert organic pollutants in sewage and wastewater in dissolved and colloidal states into stable harmless substances.
The main methods can be divided into two categories, namely aerobic method (aerobic oxidation method) using aerobic microorganisms and anaerobic method (anaerobic reduction method) using anaerobic microorganisms. The former is widely used to treat urban sewage and organic production sewage, including activated sludge method and biofilm method; the latter is mostly used to treat high-concentration organic sewage and sludge generated during sewage treatment, and is now also used to treat urban sewage and low-concentration organic sewage.
Technical advantages
Improve the removal rate of suspended matter: Micro-nano flotation technology can produce 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.
Typical applications
Improve the removal rate of suspended matter, remove soluble pollutants, and enhance the water purification effect.
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.
National High-Tech Enterprise
National "Little Giant" Specialized and New Enterprise
Shandong Province Specialized and New Small and Medium-sized Enterprise
Shandong Province Gazelle Enterprise
Shandong Province Manufacturing Industry Single Champion Enterprise
Shandong Province First Set of Technical Equipment and Key Core Component Production Enterprise
Shandong Province "One Enterprise, One Technology" R&D Center
Shandong Province Innovative Small and Medium-sized Enterprise
Shandong Province Industrial Design Center
Shandong Province AAA Quality Integrity Enterprise
Hidden Champion Enterprise
Weifang Top 100 Innovative Enterprise
Weifang Engineering Laboratory
Qilu University of Technology Employment and Training Base
Grade II General Contractor for Municipal Public Works
Grade II Contractor for Environmental Engineering
Grade II Contractor for Mechanical and Electrical Installation Engineering
ISO 45001 Occupational Health and Safety Management System Certified Enterprise
ISO 9001 Quality Management System Certified Enterprise
ISO 14001 Environmental Management System Certified Enterprise
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