System and method for recovering and reusing graywater

A sink applied to a system for recovering and reusing graywater, the sink comprising:

• a sink body, comprising a water basin located at an upper part of the sink body and a cavity located at a lower part of the sink body, wherein the water basin comprises a water outlet configured to be connected to a sewer;
• a sink graywater recovery pipeline configured to be connected to the water outlet;
• a washing device configured to be connected to the sink graywater recovery pipeline;
• and
• a switching device configured to switch between the sewer and the sink graywater recovery pipeline;
• wherein when the switching device opens the sewer and closes the sink graywater recovery pipeline, the graywater is led into the sewer and discarded, and
• wherein when the switching device opens the sink graywater recovery pipeline and closes the sewer, the graywater is led into the washing device.

A system for recovering and reusing graywater generated from a sink, the system comprising:

• the sink comprising:
• a sink body, comprising a water basin located at an upper part of the sink body and a cavity disposed at a lower part of the sink body, wherein the water basin comprises a water outlet configured to be connected to a sewer;
• a sink graywater recovery pipeline configured to be connected to the water outlet;
• a washing device configured to be connected to the sink graywater recovery pipeline;
• and
• a switching device configured to switch between the sewer and the sink graywater recovery pipeline;
• and
• a controller configured to control recovery and reuse of the graywater collected from the sink,
• wherein when the switching device opens the sewer and closes the sink graywater recovery pipeline, the graywater is led into the sewer and discarded, and
• wherein when the switching device opens the sink graywater recovery pipeline and closes the sewer, the graywater is led into the washing device.

A method for recovering and reusing graywater from a sink applied to a system for recovering and reusing graywater, the method comprising:

• delivering graywater from a water outlet of a water basin to a drainage pipeline;
• supplying, by a switching device, the graywater from the water outlet to a sewer or a sink graywater recovery pipeline;
• and
• delivering the graywater from the sink graywater recovery pipeline to a washing device when the switching device supplies the graywater from the water outlet to the sink graywater recovery pipeline.