Fermentation slurry from biogas plants, kitchen waste treatment and anaerobic digestion projects is a tricky four-phase system: biogas, process water, fibrous solids and light organic oil fractions. A four-phase centrifuge provides an all-in-one separation solution to extract these four streams at the same time, solving the common headache of gas locking in ordinary decanter centrifuges. Many biogas stations previously matched three-phase centrifuges with pre-degassing vessels, which occupied large space and brought extra maintenance points. Upgrading to a four-phase centrifuge streamlines the whole process chain.

Our heavy-duty four-phase centrifuge is engineered for unstable feed conditions with variable gas content and high fiber solids. The differential speed between bowl and scroll can be adjusted to handle sticky, easily foaming slurry. Sealed pressure-resistant rotor structure safely guides biogas out without leakage, while vibration, temperature and current real-time monitoring system triggers alarm to protect the machine from overload and abnormal operation. Explosion-proof configuration is optional for sites with flammable biogas.

The benefits of four-phase centrifuge cover economy and environmental compliance. Separated biogas can be collected for power generation; light organic oil can be recycled as fuel; clarified water can return to fermentation or further treatment; dewatered solid cake is suitable for composting or solid fuel production. It helps biogas plants improve resource recovery rate and reduce running cost. We are a professional four-phase centrifuge manufacturer supporting OEM and ODM customization. Share your feed parameters, gas content and target capacity, and our engineers will recommend the best-fit four-phase centrifuge model for your biogas project.