微波辅助湿式催化氧化处理腈纶废水的研究

Study on microwave-assisted CWAO for treating acrylic fiber wastewater

将微波与湿式催化氧化技术相结合,以硫酸改性纳米氧化铈为催化剂,H2O2为氧化剂,降解腈纶废水。研究了催化剂和氧化剂的用量、反应时间、反应温度等因素对有机物去除率的影响,确定了最佳反应条件为50 m L腈纶废水(COD 635 mg/L)投加0.25 g酸化纳米Ce O2催化剂和0.3 m L 6%的H2O2,室温下搅拌3 h,微波辐射140℃下反应60 min,COD平均去除率达到89.7%。

Combining microwave with CWAO, and taking H202 as oxidant, acrylic fiber wastewater can be degraded. sulfuric acid modified nano cerium oxide as catalysts, and The influences of factors, such as the catalyst and oxidant dosages, reaction time, reaction temperature, etc. on the organic matter removing rates are studied. The optimum reaction conditions are as follows：acrylic fiber wastewater 50 mL （COD is 635 mg/L）, adding 0.25 g of acid modified nano Ce02 catalyst and 0.3 mL 6% of H202, stirring for 3 h at room temperature,and under microwave radiation 140℃ and reacted for 60 min, the average COD removing rate reaches 89.7%.