Often characterized by a variable mixture of constantly flowing chemical spills, steam condensate, storm water runoff and process contact water, industrial wastewater streams give collection systems the corrosion-erosion “one-two punch.” With many trenches, sumps and manholes below grade, effective groundwater protection systems can be as critical as corrosion protection.
Durable fiberglass reinforced PENNTROWEL® MR and L/F Systems can withstand constant chemical immersion and the erosive forces of sediment entrained in process effluent streams. The fabric also helps these linings maintain their integrity along inside corners, where seasonal thermal cycling could undermine a weaker lining system.
Many “off-the-shelf” precast polymer concrete trench drains just don’t provide sufficient chemical resistance for corrosive industrial environments. When your effluent collection system demands a more robust, custom solution, think of Corrosion Engineering. Choose from TUFCHEM® Grout and PENNCHEM® Novolac Concrete, available in silica and carbon grades.
Though coatings have gained favor for their low initial cost, acid brick linings typically provide corrosion protection at a lower cost per year of service.
Within their chemical and thermal resistance limitations, shop fabricated ACROLINE® Systems are a convenient option for lining process wastewater collection pits when downtime is critical.
Integrally extruded anchors on the back of our ACROLINE® Concrete Protection Liners mechanically lock the prefabricated thermoplastic sheeting into the substrate. Within its limitations, this mechanical anchoring enables the liner to resist delamination from groundwater backpressure in below-grade trenches and sumps. Grating ledges and pipe stub-outs can be integrally fabricated into liner systems.
Trench Liner – Section View
ACROLINE® Systems are available in six thermoplastics:
High-Density Polyethylene (HDPE), gray and UV stable black
Random Copolymer Polypropylene (PP-R), gray and UV stable black
Flexible Polyvinylidene Fluoride (PVDF), UV stable natural
Ethylene-Chlorotrifluoroethylene Copolymer (ECTFE), UV stable natural
Acroline® 110 Systems are only available in HDPE.