GN factory has completed full assembly, functional inspection and packaging for a complete sludge dewatering package ordered by one European wastewater treatment client. This integrated solution consists of GNDL303 Sludge Dewatering Screw Press and GNSJY3000 Chemical Dosing Unit, and is now fully prepared for ocean shipment to the overseas project site.
Sludge volume reduction is a core challenge for municipal and industrial wastewater facilities across Europe. Rising disposal costs and strict local environmental regulations push plant operators to seek compact, low‑energy and automatic dewatering alternatives, instead of traditional belt filter presses or filter presses. The GNDL303 screw press is selected for this project to handle continuous sludge thickening and mechanical dewatering.
The GNDL303 adopts screw extrusion working principle. Conditioned sludge flows into the machine, and the low‑speed rotating screw pushes materials forward. Gradually decreased screw pitch and narrow gaps between fixed and moving rings build up extrusion pressure. Free water is separated out as filtrate through ring gaps, while solid particles are concentrated and discharged as dewatered sludge cake. Moving rings move up‑down to realize self‑cleaning, effectively preventing clogging. Compared with high‑speed centrifuges, this screw press features low noise, low power consumption and simple daily maintenance.
To guarantee stable dewatering output, the package is matched with GNSJY3000 Chemical Dosing Unit. Made of corrosion‑resistant stainless steel, this three‑chamber unit automatically finishes polymer powder feeding, mixing, maturation and storage. It prepares uniform flocculant solution and delivers accurate dosage to sludge pipeline. Proper flocculation turns fine sludge particles into firm flocs, greatly improving solid‑liquid separation efficiency. PLC automatic control reduces manual operation and keeps consistent chemical concentration during long‑time running.
This turn‑key package features small footprint and high automation. After arriving on‑site, clients only need to complete water, power and sludge pipeline connection for commissioning. Filtrate can flow back to upstream treatment system, and dewatered sludge cake is ready for transportation and final disposal. Before delivery, every key component has passed strict factory test to satisfy European market requirements.
This shipment marks another successful delivery of our integrated sludge treatment solution for European customers. Our team will keep offering remote technical guidance for installation, commissioning and operation support after equipment arrival. We keep supplying reliable screw press and supporting packages for global municipal and industrial wastewater projects.