摘要：

考察了不同微电解方式对含高浓度阴离子表面活性剂(AS)废水的预处理效果,结果表明,在铁炭填料分别为F3(铁屑,规格3 mm×10 mm)、C3(活性炭,规格D 2 mm×3 mm),进水pH为3.5,停留时间为30 min的相同条件下,当m(F3)∶m(C3)=2∶1时,二元微电解法对废水AS及COD的平均去除率分别为51.32%、48.9%;当m(F3)∶m(Cu)∶m(C3)=60∶60∶40时,三元微电解法对废水AS及COD的平均去除率分别为54.14%、49.0%。从处理效果和实际工程应用综合考虑,选用二元微电解法预处理该废水。

关键词: 微电解, 阴离子表面活性剂, 废水处理

Abstract:

The pretreatment effect of the wastewater containing highly concentrated anionic surfactant （AS） by different micro-electrolysis modes has been investigated. The results show that under the same conditions：the mass ratio of F3（iron，size 3 mm×10 mm） and C3（activated carbon，size D 2 mm×3 mm） is 2∶1， pH 3.5 and retention time 30 min，the average removing rates of AS and COD are 51.32% and 48.9%,respectively by binary microelectrolysis.When the mass ratio of F3、Cu and C3 is 60 ∶60 ∶40，the average removing rates of AS and COD are 54.14% and 49.0%,respectively by ternary micro-electrolysis. Out of consideration for the treatment effectiveness and actual application，the binary micro-electrolysis should be selected for the pretreatment of such wastewater.

Key words: micro-electrolysis, anionic surfactant, wastewater treatment

中图分类号: 

• X703.1