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Street sweeping is an effective method for reducing suspended solids and related pollutant runoff from streets in ultra-urban areas. Studies show that using road sweepers designed with new technologies can reduce annual total suspended solids and related pollutants by up to 80 percent. Since ultra-urban environments don’t have the space available to institute structural controls, street sweeping is imperative, particularly in commercial areas, industrial areas and highly developed areas near receiving bodies of water. On highways, road sweepers can be used to effectively clean road shoulders, rest stops and maintenance yards. The greatest benefits are realized when the most technologically advanced sweepers are used on a weekly or bimonthly basis.

 

There are five main types of road sweepers, including mechanical sweepers, vacuum-assisted sweepers, tandem sweeping operations, regenerative air sweepers and vacuum-assisted dry sweepers. The overall effectiveness of a street sweeping program depends on which type of road sweeper is used, along with a few other factors. Vacuum-assisted and regenerative air sweepers, for instance, are better at removing finer particles, where much of the heavy metals are found, than their counterparts. The vacuum-assisted dry sweepers are particularly good at removing respirable particulate matter, thereby improving overall air quality.

 

Other factors determining the effectiveness of street sweeping are the frequency with which it is performed and the number of passes conducted per run. In order to remove 50 percent of street dirt then the streets should be swept at least once between storms and two passes should usually be conducted per run in order to achieve removal rates of total solids as high as 75 percent. The climate is another factor that contributes to the effectiveness of street sweeping in that road sweeping tends to achieve better results in areas with marked wet and dry seasons.

YIHONG, Provides Road and Street Sweeping Solutions and Specializes Road Sweepers,Street Sweepers. Protection of the urban environment is our common responsibility and obligation, but also YIHONG's mission and corporate social responsibility.