Difference Between QJB Submersible Mixer And QDT Submersible Thruster: Water Treatment Technology Comparison | Sealocean Group

Difference Between QJB Submersible Mixer And QDT Submersible Thruster: Water Treatment Technology Comparison

Publication Date: July 10, 2026
Department: Sealocean Group Water Treatment Engineering Department
Author: Industrial Equipment Research Team
Category: Wastewater Treatment Engineering News

Sealocean Group China Factory provides professional QJB submersible mixer and QDT low speed submersible thruster solutions for industrial wastewater treatment, biological reactors and environmental engineering projects worldwide.

QJB vs QDT: Different Functions In Wastewater Treatment Systems

Choosing the correct mixing equipment is critical for wastewater treatment efficiency. Although both QJB submersible mixer and QDT submersible thruster are installed underwater, their hydraulic functions are different.

The QJB mixer focuses on powerful turbulence generation, solid-liquid mixing and sediment prevention. The QDT thruster focuses on creating continuous horizontal flow with low energy consumption for large biological tanks.

QJB submersible mixer vs QDT submersible thruster comparison

QJB Submersible Mixer: High Efficiency Mixing Solution For Wastewater Treatment

The QJB submersible mixer is designed for intensive mixing of wastewater, sludge and liquid-solid mixtures. With optimized propeller design and high efficiency underwater motor technology, QJB creates strong circulation flow to prevent sediment accumulation and maintain uniform concentration in treatment tanks.

Main Advantages Of QJB Mixer

High hydraulic efficiency with optimized multi-blade propeller design
IP68 waterproof submersible motor structure
Excellent solid-liquid mixing performance
Prevents sludge settlement in biological tanks
Suitable for municipal and industrial wastewater treatment
Low maintenance and long service life

Typical Applications Of QJB

Aeration tanks
Anaerobic tanks
Chemical mixing tanks
Industrial wastewater treatment plants
Sludge activation systems
Food, chemical and paper industries

QDT Submersible Thruster: Low Speed Hydraulic Flow Optimization

The QDT submersible thruster is designed to move large volumes of water at low speed. Its axial flow propeller generates continuous horizontal circulation, improving oxygen transfer efficiency and hydraulic balance in large biological reactors.

Main Advantages Of QDT Thruster

Large axial water flow with low energy consumption
Low speed operation protects activated sludge structure
Improves circulation efficiency in large tanks
Reduces dead zones inside biological reactors
Ideal solution for modern energy-saving wastewater plants

Typical Applications Of QDT

Large wastewater treatment plants
Biological oxidation tanks
MBR wastewater systems
Denitrification tanks
Environmental engineering projects

QJB Submersible Mixer vs QDT Submersible Thruster Comparison

Comparison Item	QJB Submersible Mixer	QDT Submersible Thruster
Main Function	Intensive mixing and sludge suspension	Continuous horizontal water circulation
Flow Type	Strong turbulent mixing flow	Low speed axial flow
Main Purpose	Mix solids, liquids and prevent sedimentation	Improve circulation and oxygen efficiency
Installation Area	Small and medium tanks	Large biological reactors
Energy Efficiency	High mixing power	Low energy consumption operation
Recommended Industry	Chemical, sludge, wastewater mixing	Municipal wastewater and environmental projects

QJB And QDT Model Technical Parameters

Model	Power	Voltage	Speed	Protection	Application
QJB-1000	3 kW	380 V	980 rpm	IP68	Wastewater Mixing Tank
QJB-1500	5.5 kW	380 V / 415 V	1450 rpm	IP68	Industrial Wastewater Treatment
QDT-500	1.5 kW	380 V	150 rpm	IP68	Biological Reactor
QDT-1000	4 kW	380 V	110 rpm	IP68	Large Aeration Tank

6 International Engineering Cases Of Sealocean QJB And QDT Solutions

Case 1: Russia Municipal Wastewater Treatment Plant

Equipment: QJB-1000 Submersible Mixer

Industry: Municipal Wastewater Treatment

Project Solution: QJB mixer was installed in sludge treatment tanks to improve mixing efficiency, prevent sedimentation and maintain stable biological treatment performance.

Case 2: China Chemical Manufacturing Factory

Equipment: QJB-1500 Submersible Mixer

Industry: Chemical Wastewater Treatment

Project Solution: The mixer provides uniform chemical solution distribution and improves reaction efficiency during wastewater processing.

Case 3: India Paper Mill Wastewater Project

Equipment: QDT-1000 Low Speed Submersible Thruster

Industry: Pulp And Paper Industry

Project Solution: QDT equipment created stable horizontal flow inside biological tanks and improved wastewater circulation performance.

Case 4: Brazil Food Processing Plant

Equipment: QJB-1000 + QDT-500 Combined Solution

Industry: Food Processing Wastewater Treatment

Project Solution: Combined mixing and circulation equipment improved biological treatment stability and reduced dead zones.

Case 5: Saudi Arabia Water Treatment Engineering Project

Equipment: QDT-1000 Submersible Thruster

Industry: Environmental Water Engineering

Project Solution: Low speed propulsion technology improved hydraulic circulation in large water treatment basins with reduced energy consumption.

Case 6: Vietnam Industrial Wastewater Project

Equipment: QJB-1500 Mixer

Industry: Manufacturing Industry

Project Solution: QJB provided efficient solid-liquid mixing performance and improved wastewater treatment reliability.

Frequently Asked Questions About QJB Submersible Mixer And QDT Submersible Thruster

1. What Is The Difference Between QJB Submersible Mixer And QDT Submersible Thruster?

The QJB submersible mixer is designed for powerful mixing, sludge suspension and preventing sediment accumulation. The QDT submersible thruster is designed for creating long-distance horizontal flow with low energy consumption in large biological tanks.

2. How To Choose Between QJB Mixer And QDT Thruster?

The selection depends on tank size, wastewater characteristics, required flow velocity, solid concentration and treatment process requirements. Sealocean Group engineers provide professional equipment selection according to customer project conditions.

3. What Industries Use QJB And QDT Equipment?

QJB and QDT solutions are widely used in:

Municipal wastewater treatment plants
Chemical industry
Petrochemical industry
Food processing factories
Paper manufacturing
Mining and metallurgy wastewater treatment
Environmental engineering projects

4. What Is The Protection Grade Of QJB And QDT Motors?

The standard design adopts IP68 waterproof protection, allowing reliable operation under full immersion conditions.

5. Does Sealocean Group Provide OEM Manufacturing?

Yes. Sealocean Group is a China factory manufacturer providing OEM production, customized specifications, engineering support and international export services.

6. What Maintenance Is Required For QJB And QDT Equipment?

Regular inspection of motor insulation, mechanical seals, propeller condition and electrical connection is recommended according to operating conditions.

7. Can Sealocean Supply Complete Water Treatment Solutions?

Yes. Sealocean provides industrial water treatment equipment solutions including mixers, thrusters, pumps and customized engineering support.

8. How Can Customers Request A Technical Proposal?

Send your wastewater parameters, tank dimensions, required capacity and application information. The Sealocean engineering team will prepare a suitable technical solution and quotation.

Soluciones QJB Y QDT Para Tratamiento De Aguas Residuales En Español

Sealocean Group ofrece mezcladores sumergibles QJB y propulsores sumergibles QDT para plantas de tratamiento de aguas residuales industriales y municipales.

El mezclador QJB proporciona una fuerte turbulencia para mezclar sólidos y líquidos, mientras que el propulsor QDT genera un flujo horizontal de baja velocidad para mejorar la circulación hidráulica en reactores biológicos.

Aplicaciones principales:

Plantas depuradoras de aguas residuales
Industria química
Industria alimentaria
Industria papelera
Proyectos ambientales

Soluções QJB E QDT Para Tratamento De Águas Residuais Em Português

A Sealocean Group fornece misturadores submersíveis QJB e propulsores submersíveis QDT para sistemas industriais de tratamento de águas residuais.

O misturador QJB é utilizado para mistura intensa e prevenção de sedimentação, enquanto o QDT cria fluxo horizontal de baixa velocidade para melhorar a circulação em tanques biológicos.

Principais aplicações: