MOTIVA developed the QDPP integrated sewage treatment system specifically for rural domestic wastewater treatment. The solution adopts an integrated membrane bioreactor (MBR) process that organically combines the A/O and MBR technologies. Unlike a simple combination, this integration enhances the degradation of organic matter through microbial activity and efficient membrane separation, improving biodegradability and overall treatment efficiency.
The membrane effectively retains long-generation-cycle microorganisms within the bioreactor, supporting their growth and reproduction, which leads to improved pollutant degradation and effluent quality.
Technical Process Comparison: MBR vs. Traditional Treatment
| Parameter | MBR Technology | Traditional Biological Treatment |
| Main Process | Biochemical treatment + membrane separation | Biochemical treatment + sedimentation |
| Sludge Concentration | 6000-15000mg/L; adjustable for high activity and pollutant resistance | 3000-5000mg/L; limited by sedimentation tank capacity |
| Biological Diversity | Membrane retains nearly all microorganisms, promoting rich biodiversity | Gravity separation causes loss of weaker or slow-growing microbes |
| Treatment Efficiency | Fast startup, high degradation (95%+), excellent effluent quality | Efficiency ~85%; often requires additional advanced treatment |
| Shock Load Resistance | High due to concentrated, diverse, and active biomass | Moderate; sensitive to external changes |
| Footprint & OPEX | Compact design, low operating costs | Larger space required, higher operating costs |
| Automation | High automation, minimal manual operation | Limited automation; performance depends on operator skills |
The MBR process extends solids retention time (SRT), reduces sludge production, and enhances nitrification and organic degradation performance.
Core Advantages of QDPP MBR Units
- High Structural Integrity:
The tank body is produced using a spiral extrusion winding process from pellet feedstock, forming a seamless structure that enhances durability.
- Enhanced Durability:
UV-resistant and anti-aging additives improve the lifespan of outdoor plastic equipment significantly.
- Cost-Effective Design:
Tank thickness exceeds 80mm and can be varied by stress area, efficiently utilizing materials for long-term reliability.
- Corrosion Resistance:
Excellent resistance to acids, bases, and a wide range of solvents ensures stable long-term operation.
- Flexible Installation:
Lightweight, easy to install and maintain, customizable to client requirements, and adaptable to varied site conditions.
About MOTIVA
Founded in 2013, MOTIVA is a high-tech enterprise specializing in R&D, design, equipment manufacturing, engineering, commissioning, and technical services for environmental systems.
Our core expertise lies in integrated sewage treatment systems, dissolved air flotation units, and filtration solutions. With years of continuous innovation, MOTIVA has developed flagship product lines such as Zhongqiao Tank (MOTIVA Tank), Zhongqiao Box (MOTIVA Box), MBBR systems, and QDPP integrated units.
