摘要：

利用半导体光催化剂Bi₂O₃对含亚硝酸盐废水的处理进行了研究，并讨论了影响亚硝酸盐氧化率的因素。实验结果表明:当催化剂用量为0.001g/mL，pH=3.7，NO₂^--N起始浓度为400.0mg/L时，光照1h，其氧化率可达97.0%。

关键词: 三氧化二铋, 光催化剂, 亚硝酸盐, 废水处理

Abstract:

Thi spaper reports the treatment of nitrite-bearing wastewater by semico nductor photocatalyst Bi₂O₃. The facto rs which inf luence the oxidatio nefficiency of nitrite are discussed. The experiment result shows: when cataly stquantity= 0.001 g /mL, pH= 3.7, the starting concent ration of nitrite-N=400.0mg /L, illumination 1h. the oxidation efficiency of sodium nitrite can reach 97. 0%.

Key words: bismuth trioxide, photoca talyst, nit rite, wastew ater treatment

中图分类号: 

• TQ085