Bruckner Trockentechnik GmbHandCo. KG, Germany, recently sold a heat recovery and exhaust air
purification system to RoeckerandKohler Wirkstoffe, Germany.The exhaust air treatment system,
designed to comply with German emissions laws, combines a small heat recovery system with a
two-stage electrostatic precipitator. Hot air exhausted from the heat-setting process heats up
fresh air, which then is led back to the tenter. The exhaust air then is further cooled, and its
thermal energy is used to heat water for other processes.In both stages, the system condenses,
separates and removes air pollutants, thus reducing emissions.