swill is the garbage left by some catering institutions when they serve customers daily, and it is generally treated as kitchen waste. According to the relevant regulations of urban management, kitchen waste needs to be treated by special institutions, and it cannot be discarded without permission. Moreover, special institutions are completed by bidding of urban management departments, providing professional services and sending them to special treatment plants for treatment. Therefore, swilling water, that is, transporting kitchen waste, belongs to the jurisdiction of the urban management department.