A cryogenic conditions improve under municipal sludge dewatering performance of a

The present invention belongs to the field of sludge treatment technology, in particular to improve the conditions under a cryogenic municipal sludge dewatering performance. This method uses microorganisms to complex microbial repeatedly after cold acclimation, the low temperature is 10-15 ℃. The present invention is to achieve a good at a temperature as low as 10-15 ℃ condition, after 2-5 days of treatment response, significantly improved the performance of municipal sludge dewatering, sludge treated by the filter press cake moisture content down to 60% or less.