Abstract:

Double-element， Fe³⁺-Ce⁴⁺， compound adulterate modified TiO₂ photocatalyst has been used for treating the wastewater from real silk product dyeing. The effect of double-element modified TiO₂ photocatalyst on the removal rates of chroma and COD_Cr of the wastewater from real silk product dyeing is analyzed according to the indexes of calcination temperature of the carrier， pH， reaction time， quantity of element adulterate and so on. The test results indicate that after the wastewater is treated by TiO₂ photocatalyst that has been modified by doubleelements，Fe³⁺-Ce⁴⁺， adulterate， the removal rate of chroma of the effluent water quality is 98.7% and its removal rate of COD_Cr is 70%. This process is more efficient than the modification process using individual element.

Key words: wastewater from real silk product dyeing, double elements adulterate, photocatalysis oxidation

摘要：

试验采用Fe³⁺-Ce⁴⁺双元素复合掺杂改性TiO₂光催化剂处理真丝产品的印染废水,考察了载体的煅烧温度、pH、反应时间、元素掺杂量等参数对双元素改性TiO₂光催化剂的光催化活性的影响。试验结果表明:经过Fe³⁺-Ce⁴⁺双元素掺杂深度改性的TiO₂光催化剂处理后出水色度去除率为98.7%、CODCr去除率为70%,比单一元素的改性处理工艺更有效。

关键词: 真丝印染废水, 双元素掺杂, 光催化氧化

CLC Number: 

• X703.1