In recent years

with the acceleration of urbanization and the continuous improvement of living standards

sludge production and treatment capacity is on the rise. In order to solve the problem of urban sludge treatment in Jiangxi province

the basic situation of urban sewage treatment plants in Jiangxi province

the generation and disposal of urban sludge were investigated and analyzed

and it was concluded that the annual sludge production of urban sewage treatment plants in Jiangxi province in 2017 and 2020 were 501 700 t and 712 700 t respectively

and it is expected to reach 850 thousand t in 2025. But at present

sludge disposal technology in the province is relatively backward

mainly landfill and brick making. The reason is that the government and sewage treatment plant did not pay enough attention to sludge treatment and disposal in the early stage

the legal supervision system is not perfect

and the responsibility subject of sludge disposal and the final disposal route is not clear. In order to improve the technology of sludge treatment and disposal in Jiangxi province

the present situation of sludge concentration and dehydration

anaerobic digestion and aerobic fermentation after land use

sludge building materials utilization

sludge incineration co-disposal and other technologies in China were analyzed

and the selection of sludge treatment and disposal methods in various cities should be based on the scale and nature of sludge quantity. The sludge resource utilization mode of energy and mineral recycling

land utilization

building materials utilization

and cooperative disposal with power plants should be established.