Despite such opposition, the first meters were installed by the Dual Parking Meter Company beginning in July 1935; they cost a nickel an hour, and were placed at 20-foot intervals along the curb that corresponded to spaces painted on the pavement.
The single solution for everything in your air. Many air cleaning systems filter out particles. Some combat germs, and some fight odors. But only the PureAirâ¢ Air Purification System addresses all three types of indoor air pollutants.
HUBER Dissolved Air Flotation Plant HDF. Wastewater treatment, product recovery and process water treatment through flotation with micro bubbles.Process water is needed in many production processes as a solvent, for production of material, or for cleaning purposes.Water is recirculated and reused for economical and environmental reasons.UBER Dissolved Air Flotation Plant HDF. Wastewater treatment, product recovery and process water treatment through flotation with micro bubbles.