On Development & Study of Urban Sludge Disposal New Technology

The issues about sludge disposal in China are discussed in this paper firstly.Combined with sludge disposal conditions at home and abroad,the application characteristics and limited conditions of several main technologies including sanitary landfill,burning and land utilization,etc.are summarized,which may provide guide for choosing economic effective sludge disposal technology based on local conditions.Through sludge resource utilization technology,sludge adsorbent,construction material and oil from low temperature pyrolysis can be completed and their research development and application prospect will be the developing direction of sludge disposal.