When suspended solids drive up chemical use, OPEX climbs.
GWT’s self-cleaning spiral filtration systems cuts suspended solids at the source—reducing chemical consumption and stabilizing your treatment train.
These self cleaning spiral filtration system employ a helical (spiral) flow path within a cylindrical or conical housing. As the influent enters, the spiral geometry promotes a controlled tangential flow, which enhances particle-separation via centrifugal and shear forces.
Self-cleaning elements continuously remove captured solids from the interior surface of the filter, typically without interrupting the main flow stream or requiring external backwash operation.
By contrast, the previous centrifugal system was purely a mechanical rotor that relied on high-velocity swirl to separate heavier particles from the water and discharge them to a purge line.Â
The Spiral design brings these advantages:
* More uniform flow distribution and lower head-loss
* Ability to handle finer particles and higher solids load-rates up to 10-15,000ppm TSS
* Continuously self-cleaning via differential pressure or time initiation that minimizes operator intervention
Superior Solids Removal-Capability: Achieves finer separation, enabling filtration efficiences from 10-50 micron in many application cases.
Higher Throughput, Modular Scalability: Suitable for flows from 20 gpm (4.5 m3/h) to 5000 gpm (1125 m3/h) or higher via modular manifolded configurations.
Significantly Lower Footprint & Simpler Hydraulics: The spiral geometry offers compactness and easier installation compared to conventional filtration configurations with no backwash water requirements.
Reduced Lifecycle Operating Costs (OPEX): Lower chemical and consumable usage, fewer shut-downs, and reduced operator labor costs.
Reliability and Broad Solids-Handling: Designed to manage high TSS with particle sizes less than 2000 micron, (including fibers) without regular back-wash water requirements or frequent manual clean-outs.
Enhanced Integration with Downstream Treatment: When positioned ahead of secondary or tertiary polishing systems (e.g., clarifiers or specialized filtration), the spiral filtration units allow those downstream process trains to operate more effectively and efficiently.
GWT self cleaning spiral filtration systems are ideally suited for industrial and decentralized process & wastewater applications where robust solids handling, minimal maintenance and high uptime are critical.
These systems typically require solids particle size to be less than 1/12 inch or 2000 micron. Therefore, source wastewater with large particle solids should be prescreened first for optimized filtration performance.
For best performance, these Self Cleaning Spiral Filtration Units are recommended when:
Influent solids concentrations are high (TSS in the hundreds or thousands mg/L) or contain fibers, greases or other complex particulates
Downstream processes require consistent low-solids loading for optimal performance
Maintenance resources are constrained and a minimal-maintenance, continuous-operation solution is preferable
Footprint is limited, and simple installation, minimal operator intervention and low purge-water usage are priorities
Proven expertise: GWT has experience in both industrial and decentralized municipal wastewater applications.
Technology Evolution: The Spiral Filtration System is the next evolution — taking proven fundamentals and optimising for today’s challenging applications.
End-to-end support: From initial feed-characterisation and pilot testing, through supply, commissioning and long-term service support.
Focus on lifecycle value: GWT focuses on reducing total cost of ownership (TCO), not just CAPEX. Lower operating expense, more reliable and less downtime.
Global readiness: Systems designed for industrial grade duty, capable of handling elevated temperatures, high solids loads, oils/greases and other contaminants — ideal for manufacturing, power-industry and decentralized municipal wastewater treatment.
If you’re evaluating filtration options to optimize your suspended solids-removal, reduce chemical use, simplify maintenance and protect downstream treatment trains — let’s talk.
Contact us now to learn how the GWT Self-Cleaning Spiral Filtration System can upgrade your treatment process and deliver measurable cost and performance benefits.