垃圾焚烧飞灰浸出毒性含量测定

Determination of Leaching Toxicity of Fly Ash from Municipal Solid Waste Incineration

重金属螯合剂处理生活垃圾焚烧的飞灰,铅原灰的浸出液浓度为0.96 mg/L,加入螯合剂螯合后浸出液浓度为0.06 mg/L,去除效率高达94%;镉原灰浸出液浓度为1.40 mg/L,螯合后浸出液浓度为0.01 mg/L,去除效率近乎100%。两种分析方法均可行,石墨炉原子吸收法的检出限低,更适用于较低浓度的测定;ICP-OES线性范围宽、分析速度快、可多元素同时分析更具优势。

Heavy metal chelating agent treatment of fly ash from municipal solid waste incineration,the concentration of Lixivium is 0.96 mg/L,the concentration of Lixivium is 0.06 mg/L when chelating agent is added,the removal efficiency is 94%,the concentration of lixivium is 1.40 mg/L,the concentration of Lixivium is 0.01 mg/L when chelating agent is added,the removal efficiency is nearly 100%,both analysis methods are feasible.The graphite furnace atomic absorption method has lower detection limit and is more suitable for the determination of lower concentration.The ICP-OES has the advantages of wide linear range,fast analysis speed and simultaneous analysis of multiple elements.