新型铁碳内电解处理难降解化工废水的工艺研究

摘要

The high concentrate chemical waister water is difficult to treat due to containing complicated composition and recalcitrant organic compounds.In order to improve the efficiency of waste water treatment.,we designed a new type of multi metal catalyzed iron-carbon activated coke micro-electrolysis materials, analyzed the influencing factors of the iron-carbon micro-electrolysis process which include aeration time, PH, copper-plating time and nickel-plating time, the ratio of Fe/C. The analyzed results indicated when PH was 4, the time of copper plating was 2min, the time of copper plating was 2min,the ration of Fe/C was 2:1,aeration time was 2h, the CODCr removal efficiency could approach 50%after this iron-carbon micro-electrolysis process.%高浓度化工废水难降解有机污染物含量高，成分复杂，可生化性差，处理难度大。为提高废水的处理效率，我们设计了新型多元金属催化铁碳内电解填料，并考察了曝气时间、PH、镀铜时间和镀镍时间、铁碳比等因数对处理效率的影响。分析结果表明当pH=4，铁屑镀铜2min，镀镍2min，铁炭比为2：1。经过曝气2.5h后，CODCr去除率接近50%。