Submersible recirculation pump and submerisble mixers are ready for pick-up
The submersible recirculation pump is a professional, submersible water treatment equipment specially developed for sewage treatment and water circulation processes. Integrated with mature submersible mixing and pumping technology, it features a compact integrated structure, low-head and large-flow operating characteristics, and is widely recognized as the core equipment for mixed liquor reflux, denitrification and dephosphorization in municipal and industrial sewage treatment systems.
Structurally, the pump adopts a fully sealed submersible design, consisting of a waterproof submersible motor, high-efficiency impeller, sturdy pump housing and integrated mounting bracket. The overall compact structure eliminates the need for complex onshore installation platforms. Equipped with an automatic single-guide rail coupling system, it enables fast, accurate and seamless docking with the pipeline flange, greatly simplifying installation, maintenance and replacement procedures while reducing construction and operation costs. The main components are made of high-strength cast iron or stainless steel materials, which deliver excellent corrosion resistance, wear resistance and waterproof performance, adapting to long-term underwater operation in complex sewage environments containing sludge and impurities.
In terms of working principle, the equipment is fully submerged in the sewage pool during operation. It relies on the high-speed rotation of the specially designed large-flow impeller to generate stable circulating power, continuously transports activated sludge and mixed liquid in the biochemical tank, and realizes the backflow of tank water. This continuous circulation effectively balances the microbial concentration in the biochemical reaction system, provides stable operating conditions for nitrification and denitrification reactions, and significantly improves the efficiency of nitrogen and phosphorus removal in sewage, ensuring the stable and efficient operation of the entire sewage treatment process.
Compared with traditional circulating pump equipment, the submersible recirculation pump has prominent functional and operational advantages. Its low-lift and large-flow design perfectly matches the working requirements of sewage biochemical circulation, avoiding ineffective energy consumption and achieving high energy-saving efficiency. The fully submerged operation eliminates pipeline loss and noise pollution, with low operating noise and high environmental friendliness. In addition, the integrated modular structure features stable operation, low failure rate and long service life, requiring only routine simple maintenance. It effectively solves the problems of bulky structure, high energy consumption, difficult maintenance and poor stability of traditional reflux equipment.
With reliable performance and strong applicability, the submersible recirculation pump is mainly applicable to secondary sedimentation tanks, biochemical tanks and reflux tanks of municipal sewage treatment plants. It is also widely used for mixed liquid reflux in industrial wastewater treatment, circulating water regulation in water parks and landscape water bodies, and water circulation and flood drainage in river and lake water systems. It is an indispensable key device for improving sewage treatment quality, optimizing water circulation systems and realizing water resource recycling.
