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.
关键词
垃圾焚烧飞灰/重金属Zn/螯合物/浸出毒性
Key words
fly ash by waste incineration/heavy metal Zn/chelant/toxicity of leaching
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