Project Overview

One of the largest auto body shops in North Carolina needed a wastewater treatment system prior to their opening in Boone, NC. Due to no POTW access and onsite disposal restrictions, the wastewater needed to be treated in a closed loop system in order for the water to be reused. It was critical for the auto body shop to find a solution quickly as they could not open without a wastewater treatment system in place.
  • AutoBody Shop
  • new-installation


Efficiently reduce and reuse wastewater and meet discharge limits.


The auto body shop is located just outside the city limit, so the shop does not have access to the city’s sewers or discharge facility. Time was critical as they could not open without a wastewater treatment system.


In conjunction with one of our partners, a two-phase system was installed. The first phase is an ozonation system which chemically degrades organics and in organics. The second phase requires an ultrafiltration system using i2m’s ceramic hollow fiber membrane, CERA~DUR.

IOT sensors used to monitor the membranes’ performance remotely, and optimize cleaning cycles.

With i2m’s innovative CERA~DUR ultrafiltration (UF)  technology, the auto body shop was able to recycle and reuse nearly all of their wastewater.

Technology and Operating Conditions

Cera~Dur Product: CERA~DUR 6 Series
Pore Size (D90): 30 nm
  • 6-8 m3 per day

Average Flux

  • 1 bar

Water Parameters

Feed Water

  • >5,000 (ppm)
  • >3,000 (ppm)
  • >200 (ppm)


  • >1 (ppm)
  • <500 (ppm)
  • <5 (ppm)

Feed Water

  • >5,000 (ppm)
  • >3,000 (ppm)
  • >200 (ppm)


The system has been running since September 2016 and is successfully meeting all the reuse quality requirements with no membrane replacements to date.