Concluding Remarks

Over an operating period of more than 30 years, a whole series of electrostatic precipitators now clean exhaust gases of solid and liquid particles and do so with practically the same equipment that was installed when they were first put into service. Of course, some wearing parts have been repaired or replaced, such as anvils, hammers or bearings of the beater shafts. These electrostatic precipitators are found in fossil-fired power plants, steel mills, cement plants, waste incinerators and many other types of plants.