Public welfare institutions. The Shangzhi Heilongjiang Medical Waste Disposal Center started construction in March 2008 and officially opened in January 2012. The center currently uses the high-temperature sterilization process recommended by the former State Environmental Protection Administration as a pilot demonstration process to harmlessly dispose of collected infectious and damaging medical waste, with a designed processing capacity of 3 tons per day. Medical waste after high-temperature sterilization meets national landfill standards, and the collection, transportation, disposal and landfill rate reaches 100%.