This is a market activity that represents a multi-technology treatment. In the case of products requiring treatment, the market mix is provided by the activities treating the product as defined by the geographical location of the market, and they provide the activities that require the treatment of products because they generate them as waste (recyclable)/waste (non-recyclable) in undefined processes (represented as negative inputs in the system model). Where applicable, transport to the treatment facility or losses are also accounted for in this type of market. This is the market for \"domestic wastewater\" in the North China region, which includes: Beijing, Tianjin, Hebei, Shanxi, and Inner Mongolia. The dataset covers the transport from producer to consumer of the product within this geographical area.