The Singulair TNT system from Norweco is a nitrogen-reducing advanced wastewater treatment system that reduces total nitrogen by more than 68 percent. Certified performance data from NSF Standard 245 verifies that average effluent contains 7 mg/L nitrate, 12 mg/L total nitrogen, 4 mg/L CBOD₅ and 9 mg/L TSS. The system offers flow equalization, effluent filtration and low electrical usage. It is designed for easy installation, operation and maintenance to reliably minimize effluent nitrogen concentrations. Nitrogen reduction is achieved without requiring effluent recirculation or the addition of chemicals. All treatment is accomplished within the tank. 800-667-9326; www.norweco.com.