The invention discloses a landfill
leachate crystallization treatment method, and relates to the technical field of landfill
leachate crystallization treatment, and the landfill
leachate crystallization treatment method comprises the following steps: step a, pretreatment, step b, MVR
evaporation concentration, step c, crystallization separation, and step d, heat exchange tube decontamination preparation. The invention further discloses landfill leachate crystallization treatment equipment which comprises an
evaporator main body, a compressor, a crystallizer and a matched pipeline
system, through clearance fit between the cleaning scraping blades and the inner wall of the heat exchange
pipe, the cleaning scraping blades rotate to scrape an initial scale layer on the
pipe wall in real time, hard scale formation is prevented, abrasion or clamping stagnation of the cleaning scraping blades caused by gapless contact is avoided, the cleaning scraping blades rotate under clearance fit to break a retention layer on the
pipe wall, the heat exchange efficiency is improved, and the service life of the heat exchange pipe is prolonged. Hard friction between the cleaning scraper and the pipe wall is reduced, the service life of the heat exchange pipe and the cleaning
assembly is prolonged, frequent shutdown for
chemical cleaning is not needed, and
cleaning agent consumption and labor cost are reduced.