Hooking up more and more units to a North Carolina trailer park prompted installation of a new advanced treatment system employing recirculating compartments and denitrification.

Aerated batch reactor saves homeowner thousands; Alternative passive technology replaces a conventional drainfield; Recirculating trickle filter discharges to sensitive waters; Passive biofilter comes ready to install; Robust solution for a coffee shop; ATU resolves a problem on a confined lot; Packed-bed filter replaces a failed sand filter; Aerobic packed-bed bioreactor treats high-strength wastewater