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{"title":"QXB5.5 \u2013 5.5 kW Submersible Centrifugal Aerator with 85 m\u00b3\/h Air Flow and IP68","imgUrl":"https:\/\/img.chinax.com\/nimg\/fd\/08\/a42030d919b3fcec22ce1e05ce07-200x200-1\/qxb5_5_e2_80_93_5_5_kw_submersible_centrifugal_aerator_with_85_m_c2_b3_2fh_air_flow_and_ip68_motor_for_wastewater_treatment.jpg","attrs":{"Model Number":"QXB 5.5","Aeration capacity":"5.3 kgO\u2082\/h","Place of Origin":"China","Power":"5.5 kW"}}
{"title":"LJ-DSB600 Vertical Inverted Umbrella Surface Aerator with High Oxygen Transfer","imgUrl":"https:\/\/img.chinax.com\/nimg\/1a\/b9\/ee0ba95defb5783ff11ab2cb856e-200x200-1\/lj_dsb600_vertical_inverted_umbrella_surface_aerator_with_high_oxygen_transfer_and_radial_flow_induction_for_compact_wastewater_tr.jpg","attrs":{"Model Number":"LJ-DSB 600","Motor power":"1.5 kW","Place of Origin":"China","Oxygen transfer rate":"1.8-2.75 kgO\u2082\/h"}}
{"title":"TBQJ-4 4 kW Push-flow Stirring Aerator with 3-in-1 Function and Stainless Steel","imgUrl":"https:\/\/img.chinax.com\/nimg\/2c\/3a\/a25f0380c3565c1b0183920a0f57-200x200-1\/tbqj_4_4_kw_push_flow_stirring_aerator_with_3_in_1_function_and_stainless_steel_construction_for_industrial_wastewater.jpg","attrs":{"Service area":"700 m\u00b2","Model Number":"TBQJ-4","pH range":"4.5-9.0","Payment Terms":"T\/T"}}
{"title":"Noiseless Centrifugal Submerged Aerator High Oxygen Dissolution Rate For","imgUrl":"https:\/\/img.chinax.com\/nimg\/a1\/e8\/26da116c0a989a0d15bde61bb0e9-200x200-1\/noiseless_centrifugal_submerged_aerator_high_oxygen_dissolution_rate_for_aeration_tanks.jpg","attrs":{"Brand Name":"Lanjiang","Model Number":"QXB Series","Certification":"ISO9001\/CE","Place of Origin":"China"}}
Rotary Disk Aerator – Horizontal Shaft Disc Aerator with FRPP Disks
Horizontal-axis surface aerator designed for efficient oxygenation and propulsion in oxidation ditch wastewater treatment systems.
Quick Specifications
Product Type
Rotary Disk Aerator (Horizontal-Axis Surface Aerator for Oxidation Ditches)
Core Function
Efficient oxygenation, robust flow propulsion, and complete sludge suspension
Aerator Disks
Injection-moulded high-strength FRPP with four integrated functional structures
Drive Unit
Motor (single/dual/VFD) + spiral bevel-cylindrical gear reducer
Main Shaft
Heavy-wall seamless steel pipe with FRP thermoset or anti-corrosion coating
Max Working Depth
~5 metres
Configuration
Split-type two-half disk design with locking device for easy assembly and expansion
Key Advantages
Deep working depth capability
High power and oxygenation efficiency
Superior corrosion resistance
Extended operational lifespan
Custom solutions designed per oxidation ditch specifications
Easy on-site assembly and future capacity expansion
Product Description
The Lanjiang Rotary Disk Aerator is a horizontal-axis surface aeration system designed specifically for large-scale oxidation ditches in municipal and industrial wastewater treatment plants. As a key piece of equipment in the Orbal/Carrousel-type oxidation ditch process, it provides three critical functions simultaneously: efficient atmospheric oxygenation, robust wastewater propulsion along the ditch channel, and complete activated sludge suspension to prevent sedimentation.
The aerator consists of a drive unit (motor with single-speed, dual-speed, or VFD control and a spiral bevel-cylindrical gear reducer), a flexible coupling (pin-type or rubber contact for vibration absorption and angular misalignment compensation), a main shaft fabricated from heavy-wall seamless steel pipe with FRP thermoset moulding or heavy-duty anti-corrosion zinc/stainless steel spray treatment, multiple aerator disks, and bearing housings that support the total operational load while compensating for thermal expansion and contraction of the shaft.
The aerator disks are injection-moulded from high-strength FRPP (Fibreglass Reinforced Polypropylene). Each disk surface integrates four functional structures: Teeth that provide propulsion for wastewater flow; Water-splashing Lobes that maximise air-water contact and oxygen saturation; Oxygen-storage Grooves that entrain and shear air bubbles for deep emulsification; and Centrifugal Channels that eject oxygen-depleted water via centrifugal force for continuous re-oxidation. The disks feature a split-type two-half design with a locking device for easy on-site installation and future capacity expansion.
During operation, the motor drives the shaft and disks through the gear reducer. The rotating disks and their integrated blind-hole structures create water curtains that entrain large volumes of atmospheric air, providing thorough mixing and efficient oxygenation. Simultaneously, the rotation strongly propels the wastewater forward along the oxidation ditch channel at a velocity typically exceeding 0.3 m/s, keeping the activated sludge perfectly suspended and ensuring complete biochemical treatment.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2001
Total Annual:
40000000-70000000
Employee Number:
80~100
Ecer Certification：
Verified Supplier
Nanjing Lanjiang is a professional manufacturer integrating the design, research and development, production, and sales of wastewater treatment equipment. The company is located at No.18 Xinyu Road, Hengliang Street, Liuhe District, in the northern suburbs of Nanjing (adjacent to the Ningtong Expres... Nanjing Lanjiang is a professional manufacturer integrating the design, research and development, production, and sales of wastewater treatment equipment. The company is located at No.18 Xinyu Road, Hengliang Street, Liuhe District, in the northern suburbs of Nanjing (adjacent to the Ningtong Expres...
