Reading guidance：With the occurrence of environmental pollution incidents, the public concern is raised. Our country in the 11th Five-Year period began to treat sludge in the 11th Five-Year period and formulated a seri

     With the occurrence of environmental pollution incidents, the public concern is raised. Our country in the" 11th Five-Year "period began to  treat sludge in the" 11th Five-Year "period and formulated a series of policies, regulations, standards and norms (1) in 2009, the Ministry of housing, the Ministry of environmental protection and Ministry of science and technology jointly issued the "urban sewage treatment plant sludge disposal and pollution control technology policy"; (2) in March 2011, the Ministry of housing, the national development and Reform Commission jointly issued the "city sludge treatment technology guide" sewage; (3) in 2009, the Ministry of housing has issued a series of mud national standards: "urban sewage treatment plant sludge disposal landfill mixed with mud" (GB/T23485-2009), the "urban sewage treatment plant sludge disposal landscaping with mud" (GB/T23486-2009), the "urban sewage treatment plant sludge disposal alone burning with mud" (GB/T 24602-2009) and the "urban sewage treatment plant sludge disposal of land reclamation with mud" (GB/T24600-2009). (4)ministry of housing and the Department of the State Council Legislative Affairs Office is jointly preparing for the urban drainage and sewage treatment work regulations”; it is a strong regulatory support for on the sludge treatment; it has also clarify about the main responsibility of local government in sludge treatment.
     At the same time, during "Eleventh Five Year" period, government increases the science and technology support. During "Eleventh Five Year" period, construction department set up some subjects, such as sludge aerobic composting, incineration, water heat drying and topics about water. We also work with the Asian Development Bank together to research policy and system. Through a series of research, we actively explore the sludge disposal technology direction and policy ideas and strengthen demonstration project work. In December 2011, ministry of housing and development and Reform Commission published "on the release of the first batch of urban sewage treatment plant sludge disposal disposal demonstration project of the notice", including: Beijing Xiaohongmen sewage processing plant sludge anaerobic digestion demonstration project, Dalian xiajiahezi sludge anaerobic digestion demonstration project, Changchun City Sewage processing plant sludge aerobic fermentation demonstration projects, Ningbo urban sludge of ceramic and ceramic block demonstration projects, Hohhot city sludge water heat drying demonstration projects, Fuyang city sludge incineration demonstration project, Jiaxing Xinjia ace thermoelectric co,. limited sludge incineration demonstration project. By summarizing and drawing lessons from the successful experience of demonstration projects, adjust measures to local conditions in order to select proper sludge treatment technology. In conjunction with the local development and reform department and coordinating with relevant departments, we actively use existing preferential policies, increase support of sludge treatment and disposal facilities support and promote sludge disposal work in depth. During "Eleventh Five Year" period. Our government has also developed a sludge treatment and disposal plan. From the beginning of 2011, ministry of housing, the Ministry of national development and Reform Commission and Ministry of environmental protection work jointly make sludge treatment and disposal do for national urban sewage treatment and recycling facilities construction of the "Twelfth Five Year Plan" an important part in the "Twelfth Five Year Plan". Our country provides great support to "Twelfth Five Year Plan" for sludge disposal.

     "Twelfth Five Year Plan" sludge treatment disposal has work basis from the "Eleventh Five Year" period. It has formed a sludge disposal working system which includes initial technology road map, improvement of standard system, powerful control of source, supporting policies and supervision. During the "Twelfth Five Year" period, the national urban sludge treatment disposal scale reached 25 million tons / year (including content 80%). 36 key urban sludge disposal rate in 36 key cities reaches to 80%. Other city reaches 70%, county and key towns reaches 30%. At the same time, sum up experience of "11th Five-Year" sludge treatment. Formulate following two principles for "12th Five-Year" sludge treatment and disposal: the principle of sludge treatment and disposal facilities planning. When Urban sewage treatment plants are under new construction, renovation and expansion, the sludge treatment and disposal facilities construction shall implement the principle of "three simultaneous", i.e. the simultaneous planning, simultaneous construction and simultaneous running. change the the problem which exists in "Eleventh Five Year" period that is only pay attention to the sewage treatment plant construction; according to the sludge characteristics, choose reasonable sludge disposal methods.
  

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