NOVELTY - The system comprises a sludge collecting device, a sand and water separating device, a garbage separating device, a sludge concentrating device, a sludge dehydrating device, and a sludge treatment device, which are connected in turn. The sludge collection device is used for collecting sludge to transport to the sand and water separation device for the separation of sand and water. The large weight of sediment deposition is conveyed and discharged. The light weight slurry flows into the garbage separating device. The garbage separation device is used for filtering the slurry.    USE - The system is useful for processing sludge (claimed).    ADVANTAGE - The eco-friendly system is capable of rapidly and safely processing the sludge with high reliability, and has high sealing property and good continuity.    DETAILED DESCRIPTION - The system comprises a sludge collecting device, a sand and water separating device, a garbage separating device, a sludge concentrating device, a sludge dehydrating device, and a sludge treatment device, which are connected in turn. The sludge collection device is used for collecting sludge to transport to the sand and water separation device for the separation of sand and water. The large weight of sediment deposition is conveyed and discharged. The light weight of slurry flows into the garbage separating device. The garbage separation device is used for filtering the slurry, in which the slurry having diameter of greater than 3 mm is separated and discharged. The filtered slurry is discharged from the garbage separation device. A first flocculating agent is added to the slurry discharged from the garbage separating device, and the mixture is sent to a sludge concentrating device. The concentrated slurry is separated into the sludge concentrating device and then the sludge is discharged. A second flocculating agent is added to the concentrated slurry and then sent to the sludge dehydrating device for dehydrating to obtain solid mud cake. The solid cake is entered into a sludge treatment device for recycling process. The sludge collecting device is cutter suction dredger, which is connected with the sand and water separating device using a pipeline. A pressurizing device is placed between the cutter suction dredger and the sand and water separation device. The cutter suction dredger comprises a dredging reamer head, dredge, a mud pump, a sludge discharge pipe, a hydraulic driving device, and a protective cover. The dredging reamer head, dredge, mud pump and sludge discharge pipe are connected in turn. The hydraulic driving device is connected with the reamer head and protective cover, which covers the reamer head. The sludge treatment device is anaerobic composting device. The sludge discharged from the sludge dewatering device is entered into the anaerobic composting device for anaerobic fermentation process to degrade under sealed condition to produce biogas, where the biogas is used as organic fertilizer and for producing electricity. The sludge treatment device is sludge brick making device. The sludge discharged from the sludge dewatering device is added to the 10-30 wt.% of clay and the mixture is sintered at 950-1050 degrees C in a brick making system to obtain normal building brick. The sludge processing system further comprises a sewage treatment tank, and a set of independent small sand pumping ship. The sand and water separating device, the garbage separating device, the sludge concentrating device and sludge dewatering device is connected to the sewage treatment tank. The sand and water separating device, the garbage separating device and the sludge concentrating device are provided with an overflow port. The waste separation device and sludge dewatering device are provided with a cleaning system.