金屬의 表面處理過程과 有毒性 重金屬의 製造施設에서 흘러나오는 시안 및 各種 重金屬이온을 同時에 處理하기 위하여 이들의 錯物生成 可能性과 그 mechanism을 조사하고, 인공적으로 만든 시안폐수용액에서 重金屬 錯物이 活性炭에 吸着되는 形態에 對하여 연구한 結果, 水銀은 Hg(CN)₄^(2-)와 Hg(CN)₃^-상태로 吸着되고 亞銀 및 카드뮴은 Zn(CN)₄^(2-) 및 Cd(CN)₄^(2-)로 吸着됨을 알았으며 이러한 關係는 시안농도 1.0×10^(-5)M - 1.0×10^(-1)M 범위에서 검토되었다.

The possibility and the mechanism of complex formation have been studied for the simultaneous removal of cyanide and toxic heavy metals from mining and/or electroplating industrial wastewater. Several heavy metal ions were added into a synthesized waste water containing cyanide and were adsorbed on activated carbon forming cyanide complexes, and their adsorption forms were discussed. It is suggested, in the range of 1.0×10^(-5)M to 1.0×10^(-1)M CN^-, thay mercury ion adsorbs as forms of Hg(CN)₄^(-2) and/or Hg(CN)₃^- whereas zinc and cadmium ions as those of Zn(CN)₄^(2-) and Cd(CN)₄^(-2), respectively.