Method for purifying heavy metal thallium in polluted water source

The invention relates to the technical field of industrial wastewater treatment, and particularly discloses a purification method and a purification agent for heavy metal thallium in a polluted water source. The method is used for deeply removing low-concentration heavy metal thallium in mine and smelting wastewater. The purifying agent comprises a modified mixed flocculant and a composite activated carbon filter element. After the modified mixed flocculant is used for preliminarily purifying the wastewater, the wastewater is further purified through the composite activated carbon filter element. And the removal effect of heavy metal thallium in the wastewater is ensured and can reach 1ug/L or below. 本发明涉及工业废水处理技术领域，具体公开了一种污染水源重金属铊的净化方法及净化剂。用于深度脱除矿山及冶炼废水低浓度重金属铊。所述净化剂包括改性混合絮凝剂和复合活性炭滤芯两部分。在应用改性混合絮凝剂对废水初步净化后，使其通过复合活性炭滤芯进一步净化。保证了废水中重金属铊的脱除效果，可以达到1ug/L以下。