Ti/Cu交联累托石光催化氧化处理硝基苯废水研究

以钛酸丁酯为钛源,掺杂铜(CuCl2)制备交联剂.制得柱状Ti/Cu交联累托石,结合其吸附特性并通过其在光催化氧化条件下处理含硝基苯有机废水.在pH=9,交联累托石用量为30 g/L,一根20 W紫外灯光辐照2 h的处理条件下,硝基苯由73.81 mg/L降至3.17 mg/L,去除率达到95.71%,优于GB-8978-1996三级标准,用其处理含硝基苯工业废水,COD去除率为83.73%,由4800 mg/L降至530.4 mg/L,硝基苯去除率达92.3l%,由10.32 mg/L降至0.79 mg/L,小于GB-8978-1996-级标准.

Study on nitrobenzene organic wastewater treated by Ti/Cu cross-linked rectorite with photocatalysis oxidation

Blending the adsorption with photocatalysis oxidation, the preparation of Ti/Cu cross-linked rectorite was introduced and treating of the nitrobenzene by cross-linked rectorite was studied. The optimum conditions of adsorption are investigated and the results of experiment show that when pH is 9. O, the content of crosslinked rectorite is 30 g/L wastewater and UV-light radiation was keeping for 2 h, the concentration of nitrobenzene decreased from 73.81 mg/L to 3. 17 mg/L and the clearance come up to 95.71%. The result was far better than GB-8978-1996 third standard. When the industrial nitrobenzene-containing wastewater was treated, the concentration of nitrobenzene decreased from 10. 32 mg/L to 0. 97 mg/L and the clearance come up to 92.31%. The result was better than GB-8978-1996 first standard.