The LET Polishing Reactor™ (LPR) provides effective and affordable supplemental BOD removal and ammonia nitrogen (NH3-N) polishing at municipal and industrial wastewater treatment facilities. The LPR is a submerged, attached-growth media technology that can be included at the end of a custom-designed LET biological wastewater treatment process or added to an existing system as a tertiary treatment for Ammonia removal and BOD polishing.

This proven wastewater treatment technology enables LET to deliver guaranteed results for new and existing plants, as the LPR consistently achieves year-round effluent limits as low as 10 mg/l BOD, 10 mg/l TSS and 1 mg/L NH3-N. With our Advanced Integrated Lagoon Treatment (AILT) approach, LET is able to integrate state-of-the-art products such as the LPR with over 30 years of proven experience to maximize treatment efficacy and meet each of our client’s unique treatment objectives.