Study on the Effect of pH on Leaching Toxicity of Heavy Metal Zn in Fly Ash Chelate by Municipal Solid Waste Incineration
Through the investigation of various factors in the process of heavy metal leaching toxicity test of fly ash chelate by waste incineration,it was found that the acetic acid content in the leaching agent,the value pH of solution fly ash chelate after leaching reaction of the leaching a-gent(leaching end pH)had a great impact on the test results of heavy metal Zn.Therefore,to detect accurately heavy metal leaching toxicity of fly ash chelate,the configuration of the leaching agent should be accurately controlled.In addition,the content of heavy metals in the leaching solution can be preliminarily determined by the indication of the pH at the end of the leaching process.
fly ash by waste incinerationheavy metal Znchelanttoxicity of leaching