5. 4. Recommendations
5.1. 4.1 Promoting fly ash comprehensive utilization vigorously
Comprehensive utilization is the best way to prevent fly ash pollution [4, 19] and many attempts should
be made in China. A recommended option is developing and promoting technologies which can consume
larger fly ash, and upgrading existing technology and expanding new application fields through scientific
and technical innovation. Other alternatives include developing fly ash comprehensive utilization echelon
technologies positively, extracting and making the most of the fly ash by economical and mature methods,
and adding value of products as much as possible.