Decanter Centrifuge Separation Efficiency in Wastewater Treatment
Decanter centrifuges play a vital role in wastewater treatment by effectively separating solids from liquids. The efficiency of this separation process is influenced by several key factors:
Key Factors Affecting Separation Efficiency
Feed Properties: Solid concentration, particle size distribution, and liquid viscosity significantly influence performance. Higher solid content may improve capture rates but can also increase equipment stress.
Centrifuge Design: Critical parameters such as bowl diameter, length, conical angle, and conveyor design determine the machine’s ability to handle different sludge types and separation requirements.
Operating Parameters: Rotational speed (RPM), feed rate, and differential speed between the bowl and conveyor are adjustable variables that directly impact separation efficiency and cake dryness.
Chemical Conditioning: The addition of polymers (flocculants or coagulants) often enhances separation by aggregating fine particles, leading to higher solids capture and clearer centrate.
Maintenance & Wear: Regular inspection and parts replacement are essential. Wear on components like the scroll, bowl, or baffles can reduce separation performance and operational stability.
Performance Evaluation Metrics
Solids Capture Rate: Measures the proportion of solids successfully removed from the liquid stream.
Centrate Quality: Indicates the clarity and suspended solids content of the discharged liquid, reflecting separation effectiveness.
Cake Dryness: Refers to the moisture content of the dewatered solids; higher dryness reduces disposal costs.
By optimizing these factors and monitoring performance metrics, operators can achieve high separation efficiency, lower operational costs, and consistent compliance with environmental standards.
| Model | Drum diameter(mm) | Processing capacity(m³/h) | Weight(kg) | Dimension(max)(mm) |
| LW250 | 250 | 1~4 | 1300 | 2750*720*900 |
| LW350 | 350 | 5~18 | 2200 | 3412*1090*950 |
| LW450 | 450 | 5~28 | 3000 | 4380*1080*1360 |
| LW520 | 520 | 10~35 | 5000 | 4840*1160*1465 |
| LW550 | 550 | 10~45 | 6500 | 5038*1388*1578 |
| LW580 | 580 | 15~20 | 7000 | 4800*1580*1280 |
| LW620 | 620 | 18~30 | 10000 | 5450*1770*1300 |
| LW650 | 650 | 20~60 | 8500 | 5100*1800*1560 |
| LW760 | 760 | 50~100 | 16000 | 5800*2200*1650 |
