One kind of wastewater treatment plant sludge drying method

The present invention discloses a waste water treatment plant sludge drying method belongs to the field of environmental protection. The present invention uses pre-dewatered sludge stirring and mixing modification pretreatment material, sludge achieve sterilization, deodorization; pH modifier after the hydration reaction materials and reaction, water causes the inner body microbial sludge particles bleeding, weakly bound and free water sludge particles are separated, thus improving the dewatering properties of the sludge particles; extruding machine using sludge is extruded into strips, thermal drying sludge increased surface area. The dehydrated sludge after pretreatment method having a low heat consumption, fast drying speed, good drying sludge modification effect, no secondary pollution.