Dewatering Systems

GeoTube Dewatering Tubes (Solmax) - GeoTube units are delivered to site fully prefabricated and rolled for deployment. The containment area must be prepared in advance — typically a level, compacted surface or lined bunded area capable of supporting the filled weight of the tube. Inlet ports (Eyeports) are connected to the slurry supply line via standard pump fittings, and the tube is filled hydraulically at a controlled rate to avoid over-pressurisation of the fabric. Multiple inlet points can be used on large-diameter units to distribute fill evenly and reduce localised stress. A polymer conditioning programme should be established prior to filling where fine-grained slurries are involved. Effluent is discharged directly through the fabric and must be directed to a suitable collection or discharge point meeting site environmental permit conditions. Tubes can be filled in multiple cycles as consolidation occurs, progressively increasing solids content with each fill. Once dewatering is complete, tubes can be left in place for permanent containment or cut open for solids removal and disposal.

FlowTex Dewatering Tubes and Bags - FlowTex dewatering tubes and bags are deployed on a prepared, stable surface with adequate drainage fall to direct effluent away from the containment area. Bags are positioned with the inlet port orientated to receive the slurry feed from a pump or gravity line, and secured to prevent displacement during filling. For tube installations, the unit is unrolled along its full intended length before filling begins. Hydraulic filling is conducted at a controlled rate matched to the fabric permeability and slurry characteristics - overfilling beyond the design fill height will stress seams and reduce fabric life. Where slurry contains significant fine particles, polymer dosing upstream of the bag or tube inlet will improve filtration performance and effluent clarity. FlowTex Mono fabric is particularly suited to high-fines applications where sustained flow rate must be maintained through multiple fill cycles. Spent bags and tubes must be dewatered, dried, and disposed of in accordance with the waste classification of the retained solids.

GeoCurtain Silt and Turbidity Curtains - GeoCurtain silt and turbidity curtain installation begins with a site assessment to confirm water depth, current velocity, tidal variation, and anchoring substrate before any components are ordered or deployed. The anchoring system - comprising anchors, mooring lines, and anchor buoys - must be installed in the waterbody prior to deploying the curtain itself. Curtain sections are supplied furled on pallets and connected in sequence to achieve the required total span. Once the full curtain length is connected and secured to the anchoring system, ties furling the skirt are released and the curtain is allowed to drop into position under its own ballast weight. Towing of connected curtain sections to the deployment position should not exceed two to three knots to avoid fabric stress and uncontrolled unfurling. Following deployment, the curtain should be inspected to confirm the skirt is hanging freely without twisting around the flotation chamber. A minimum clearance of 0.5 m between the skirt base and the waterbody bed must be maintained at low tide. Curtains require periodic inspection for biofouling, anchor drift, and fabric integrity, particularly during extended deployments or following high-energy weather events.