Abstract: The embodiments of the present disclosure provide a cleaning device, the cleaning device including a body and a floor brush. The floor brush is connected to one end of the device body; the device body is provided with a sewage storage box, and the box body of the sewage storage box is at least for storing and/or filtering garbage suctioned by the floor brush. When the cleaning device is tilted or laid flat for use, no sewage may flow back into the motor from the sewage storage box, which prevents causing the motor to stop or be damaged, and ensures a normal use of the cleaning device.

Abstract: The present disclosure provides a cleaning device. The cleaning device may include a machine body, a cleaning liquid tank, and a floor brush, wherein the floor brush may be connected to an end of the machine body, the cleaning liquid tank may be arranged above the floor brush, and the cleaning liquid tank may be configured to provide cleaning liquid for the floor brush or floor. When a user uses the cleaning device for cleaning work, the user may hold the machine body to control a moving direction of the floor brush. In the cleaning device, by setting a cleaning liquid tank on the floor brush, a volume and weight of the machine body can be reduced, which reduces an overall volume and weight of the cleaning device, thereby reducing a load and weight when the user operates the machine body and improving experience of the user during cleaning work.

Abstract: The present disclosure belongs to the field of environmental protection and relates to a method for remediating groundwater chlorophenols organic contamination. The method includes determining a location of a contamination source; setting up an injection well based on the location of the contamination source; and injecting a remediation reagent into groundwater in a to-be-remediated region through the injection well so as to degrade chlorophenols organic contamination in the groundwater in the to-be-remediated region.

Abstract: The present disclosure belongs to the field of environmental protection and relates to a method for remediating groundwater chlorophenols organic contamination. The method includes determining a location of a contamination source; setting up an injection well based on the location of the contamination source; and injecting a remediation reagent into groundwater in a to-be-remediated region through the injection well so as to degrade chlorophenols organic contamination in the groundwater in the to-be-remediated region.