WU Cheng-qiang,CAI Shen-yan,SHAO Qian,et al.Research and Application of Incineration Fly Ash Dechlorination Project by Washing[J].China Water & Wastewater,2020,36(22 22):152-155.
Research and Application of Incineration Fly Ash Dechlorination Project by Washing
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
22 22
Page:
152-155
Column:
Date of publication:
2020-11-17
- Abstract:
- The co-processing of domestic waste incineration fly ash in cement kiln has become the safe way for fly ash disposal, and the dechlorination by washing is the key process. The incineration fly ash dechlorination project by washing was designed with the capacity of 5×104 t/a. The combined process of slurrying, washing, physiochemical pretreatment, and mechanical compression evaporation (MVR) was applied and the chlorine content and water content were below 0.9% and 34%, respectively. The wastewater from washing was treated and recycled, and the by-products of sodium chloride and potassium chloride were produced. The operation results show that chloride content and the ratio of water and fly ash are the key factors of operation costs.
Last Update:
2020-11-17