Cu/Fe双金属去除四氯化碳的研究

Studies on the Removal of Carbon Tetrachloride by Cu/Fe Bimetal

[目的]探讨Cu/Fe双金属去除四氯化碳的性能。[方法]以四氯化碳(CT)为靶污染物,采用分批试验研究了Cu/Fe双金属去除CT的可行性,并研究了铜化率、投加量及pH对CT去除效果的影响;采用柱试验考察了Cu/Fe双金属去除CT的长效性。[结果]Cu/Fe双金属对CT有良好的去除性能,CT终去除率可达97.90%;在试验条件下,铜化率越高、投加量越大,Cu/Fe双金属对CT去除效果越好;偏酸性环境有利于Cu/Fe双金属对CT的去除;对于CT的去除,Cu/Fe双金属比零价铁更具有长效性,其寿命是零价铁的2倍以上。[结论]为双金属脱氯研究提供了理论依据。

[ Objective] The aim was to study the removal of carbon tetrachloride （CT） by Cu/Fe bimetal. [ Method] The feasibility and in- fluencing factors （ Cu ratio, dosage and pH） of the removal of CT by Cu/Fe bimetal were studied by batch experiment, and the long-term per- formance of Cu/Fe bimetal was ~ studied by column test. [ Result] Cu/Fe bimetal had a good performance in CT removal, with an overall CT removal rate of 97.90%. Cu/Fe bimetal with higher Cu ratio and bigger dosage brought better removals of CT. Slight acid condition was bene- ficial to the removal of CT by Cu/Fe bimetal. Cu/Fe bimetal had a better long-term performance in CT removal than zero-valent iron, because its lifetime was two times more than that of zero-valent iron. [ Conclusion] The research provides theoretical basis for studies on the dee｜dorina- tion performance of bimetal.