Preparation method of fly ash stabilizing agent for managing heavy metal pollution

The invention discloses a preparation method of a fly ash stabilizing agent for managing heavy metal pollution. Lime and high calcium fly ash are used as raw materials and treated by a melting-hydrothermal synthesis technology to synthesize heavy metal contaminated soil stabilizing agent with good performance. The stabilizing agent provided by the invention has advantages of good stabilization effect, simple synthesis process, and low production cost. The invention not only develops a reasonable, effective and novel way for utilization of high calcium fly ash from a firepower power plant to alleviate pressure on waste yards, but also provides cheap, efficient and environment-friendly in situ remediation stabilizing material for heavy metal contaminated soil.