Sludge dehydrating and processing system and method

The invention relates to a dehydrating and processing system and method, belongs to the field of heavy metal polluted soil treatment, and specifically relates to a sludge dehydrating and processing system and method. The system comprises a soil precipitating tank, a soil dehydrating machine, and a washing water tank, which are connected in sequence. The inlet end of the soil precipitating tank is connected to the overflow opening and mud discharge opening of a magnetic separation tank. The water outlet end of the soil precipitating tank is connected to the inlet section of the washing water tank. The outlet end of the washing water tank is connected to a mud-water mixing and stirring tank and a roller stone washing machine. The system and method have the advantages that the dehydration efficiency is high, the processing water can be recovered and reused, and the method is environment-friendly and high efficient. 本发明涉及种脱水及处理系统、方法，属于土壤重金属污染治理领域，具体涉及种污泥脱水及处理系统、方法。包括：顺次相连的泥土沉淀池、泥土脱水机及洗涤用水池，其中泥土沉淀池进口端分别与磁分离罐体溢流口和排