At present 18 wastewater treatment plants operateing in the Small towns of Three Gorge Areas of Chongqing Municipality

producing 132.95 tons surplus sludge everyday. As regards to the disposition of such numerous surplus sludge

the major disposition technique in these wastewater water treatment plants

i. e.

thickening and mechanical dewatering technique followed by feeding into the municipal solid waste landfill

seems to have a rather bad effect on the normal operation of the municipal solid waste landfill

due to the unstabilized sludge resulted from this technique of the sludge disposition and high moisture in the sludge

which is higher than 80%. This paper has paid some attention to this phenomenon. With respect to the small towns having the the municipal solid waste landfill

the techniques of mechanical dewatering

calcareousness stabilized etc. before feeding into the municipal solid waste landfill

seem to be feasible

while the composting and comprehensive utilization of sludge is available in the small towns which have no municipal solid waste landfills.