Recently, someone asked the editor, "What is the difference between domestic sewage and domestic wastewater?" In short, domestic sewage can be understood as sewage after use, while wastewater is water that cannot be used again after use.
Take daily domestic water use as an example. Generally speaking, the water used for washing vegetables and the water used for washing the face are both sewage, while toxic water and toilet flushing water are both wastewater. Of course, this is not fixed, because wastewater and sewage are relative, and sewage is difficult to treat, while wastewater is even more difficult to handle.
The difference between the two lies in that sewage poses a great threat to China's water resources and its composition is more complex. Therefore, the recycling cost is also relatively high. Here, it mainly refers to the water discharged from the toilet and the toilet. The harmfulness of wastewater is relatively small and it is easy to reuse, such as laundry water, kitchen drain water, bath water, etc.
Reuse of reclaimed water from sewage
In the design of drainage pipes, the method of combining sewage with sewage is mostly adopted. Whether it is hand-washing water, vegetable washing water or toilet flushing water, they are basically a comprehensive flow and common way. However, it should be noted that sewage treatment plants usually treat wastewater in their daily life. Wastewater with complex components cannot be treated alone. It usually needs to be dealt with in multiple ways. Only in this way can the wastewater meet the discharge standards stipulated by the state or industry.
