| abstract |
The invention discloses a domestic waste incineration fly ash treatment and disposal system, which is suitable for the clean and efficient disposal of urban domestic waste incineration fly ash, including a three-stage gradient water washing subsystem, a filtrate post-processing subsystem, an MVR evaporation salt-making subsystem, and a filter press. System and filter cake post-processing subsystem. In the system of the invention, the three-stage gradient water washing subsystem can achieve 99% of the chlorine eluting rate from the fly ash water; Complete and other problems, the heavy metal content in the ash washing wastewater can be reduced to meet the standard of water washing chloride for the co-processing of fly ash pretreatment products in cement kilns, and some can be reduced to the sewage discharge standard, so as to realize the recovery and reuse of inorganic salts in the high-salt ash washing wastewater, and promote the The resource utilization process of the ash washing wastewater produced by fly ash pretreatment is presented. |